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  • Django how to handle # in variable name.

    - by Jack
    I've got a dictionary in python which is assigned as a template variable. One of the keys is named "#text" but when i try to access it using {{ artist.image.3."#text"}} I get an error which is File "/home/jack/Desktop/test/appengine/lib/django/django/template/__init__.py", line 558, in __init__ raise TemplateSyntaxError, "Could not parse the remainder: %s" % token[upto:] TemplateSyntaxError: Could not parse the remainder: "#text" So how can I use this in the template? I've tried putting quotes around it but to no avail. I'd like to not modify the dictionary if possible, but if its easy enough to do then I guess its okay. Thanks

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  • Datastore query outputting for Django form instance

    - by Jelle
    Hello! I'm using google appengine and Django. I'm using de djangoforms module and wanted to specify the form instance with the information that comes from the query below. userquery = db.GqlQuery("SELECT * FROM User WHERE googleaccount = :1", users.get_current_user()) form = forms.AccountForm(data=request.POST or None,instance=?????) I've found a snippet in a sample app that does this trick, but I can't modify it to work with the query I need. gift = User.get(db.Key.from_path(User.kind(), int(gift_id))) if gift is None: return http.HttpResponseNotFound('No gift exists with that key (%r)' % gift_id) form = RegisterForm(data=request.POST or None, instance=gift) Could anyone help me?

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  • Turbogears 2 vs Django - any advice on choosing replacement for Turbogears 1?

    - by michela
    I have been using Turbogears 1 for prototyping small sites for the last couple of years and it is getting a little long in the tooth. Any suggestions on making the call between upgrading to Turbogears 2 or switching to something like Django? I'm torn between the familiarity of the TG community who are pretty responsive and do pretty good documentation vs the far larger community using Django. I am quite tempted by the built-in CMS features and the Google AppEngine support. Any advice? Thanks .M.

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  • Django template context not working with imported class

    - by Andy Hume
    I'm using Django's templating on appengine, and am having a problem whereby a class I'm importing from another package is not correctly being made available to the template context. Broadly speaking, this is the code. The prop1 is not available in the template in the first example below, but is in the second. MyClass is identical in both cases. This does not work: from module import MyClass context = MyClass() self.response.out.write(template.render(path, context)) This does: class MyClass(object): def __init__(self): self.prop1 = "prop1" context = MyClass() self.response.out.write(template.render(path, context)) If I log the context in the above code I get: <module.MyClass object at 0x107b1e450> when it's imported, and: <__main__.MyClass object at 0x103759390> when it's defined in the same file. Any clues as to what might cause this kind of behaviour?

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  • NoneType has no attribute Append

    - by Rosarch
    I'm new to Python. I can't understand why a variable is None at a certain point in my code: class UsersInRoom(webapp.RequestHandler): def get(self): room_id = self.request.get("room_id") username = self.request.get("username") UserInRoom_entities = UserInRoom.gql("WHERE room = :1", room_id).get() if UserInRoom_entities: for user_in_room in UserInRoom_entities: if user_in_room.username == username: user_in_room.put() # last_poll auto updates to now whenenever user_in_room is saved else: user_in_room = UserInRoom() user_in_room.username = username user_in_room.put() UserInRoom_entities = [] UserInRoom_entities.append(user_in_room) // error here # name is `user_at_room` intead of `user_in_room` to avoid confusion usernames = [user_at_room.username for user_at_room in UserInRoom_entities] self.response.out.write(json.dumps(usernames)) The error is: Traceback (most recent call last): File "C:\Program Files\Google\google_appengine\google\appengine\ext\webapp\__init__.py", line 507, in __call__ handler.get(*groups) File "path\to\chat.py", line 160, in get AttributeError: 'NoneType' object has no attribute 'append' How is this possible? I'm setting UserInRoom_entities = [] immediately before that call. Or is something else the None in question?

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  • How to load a database of countries in a web application

    - by lance_klusener
    Hello All, I am new to web application development, so sorry in advance if this question is too basic. The following are the details of the question: A] Platform being used -- google app engine with python, django. B] Tutorial link being used -- http://code.google.com/appengine/articles/djangoforms.html C] Question: In the application i am building, there is a drop down box which allows the user to select their country. Since the list of countries is above 200, i want to construct a database of the countries before the application loads. Once this application is deployed, i dont want the database to get re-loaded again, since the entries are constant for all the users. How does one achieve this ? thanks, Lance.

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  • UnicodeDecodeError from a GET-parameter in webapp2

    - by Aneon
    I'm getting a UnicodeDecodeError when recieving a GET-parameter from webapp2 that contains unicode characters, and then using it to do a NDB query. I get the same error message when manually running a unicode() on the parameter in the handler, so there either seems to be a problem in webapp2's URL routing or I've missed something. Preferably, all GET-parameters should be converted to unicode before getting passed into the handler so I don't need to do manual conversions in all of my handlers. I actually think it's worked before in an earlier version. The full error message read: UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 1: ordinal not in range(128) The GET-parameter contains the following string: göteborg. It looks fine when I raise an Exception on it, but gives me an error when I (or NDB) use unicode() on it. EDIT: In NDB, it fails on the following code: File "C:\Program Files (x86)\Google\google_appengine\google\appengine\api\datastore_types.py", line 1562, in PackString pbvalue.set_stringvalue(unicode(value).encode('utf-8')) Thanks.

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  • 'pip install carbon' looks like it works, but pip disagrees afterward

    - by fennec
    I'm trying to use pip to install the package carbon, a package related to statistics collection. When I run pip install carbon, it looks like everything works. However, pip is unconvinced that the package is actually installed. (This ultimately causes trouble because I'm using Puppet, and have a rule to install carbon using pip, and when puppet asks pip "is this package installed?" it says "no" and it reinstalls it again.) How do I figure out what's preventing pip from recognizing the success of this installation? Here is the output of the regular install: root@statsd:/opt/graphite# pip install carbon Downloading/unpacking carbon Downloading carbon-0.9.9.tar.gz Running setup.py egg_info for package carbon package init file 'lib/twisted/plugins/__init__.py' not found (or not a regular file) Requirement already satisfied (use --upgrade to upgrade): twisted in /usr/local/lib/python2.7/dist-packages (from carbon) Requirement already satisfied (use --upgrade to upgrade): txamqp in /usr/local/lib/python2.7/dist-packages (from carbon) Requirement already satisfied (use --upgrade to upgrade): zope.interface in /usr/local/lib/python2.7/dist-packages (from twisted->carbon) Requirement already satisfied (use --upgrade to upgrade): distribute in /usr/local/lib/python2.7/dist-packages (from zope.interface->twisted->carbon) Installing collected packages: carbon Running setup.py install for carbon package init file 'lib/twisted/plugins/__init__.py' not found (or not a regular file) changing mode of build/scripts-2.7/validate-storage-schemas.py from 664 to 775 changing mode of build/scripts-2.7/carbon-aggregator.py from 664 to 775 changing mode of build/scripts-2.7/carbon-cache.py from 664 to 775 changing mode of build/scripts-2.7/carbon-relay.py from 664 to 775 changing mode of build/scripts-2.7/carbon-client.py from 664 to 775 changing mode of /opt/graphite/bin/validate-storage-schemas.py to 775 changing mode of /opt/graphite/bin/carbon-aggregator.py to 775 changing mode of /opt/graphite/bin/carbon-cache.py to 775 changing mode of /opt/graphite/bin/carbon-relay.py to 775 changing mode of /opt/graphite/bin/carbon-client.py to 775 Successfully installed carbon Cleaning up... root@statsd:/opt/graphite# pip freeze | grep carbon root@statsd: Here is the verbose version of the install: root@statsd:/opt/graphite# pip install carbon -v Downloading/unpacking carbon Using version 0.9.9 (newest of versions: 0.9.9, 0.9.9, 0.9.8, 0.9.7, 0.9.6, 0.9.5) Downloading carbon-0.9.9.tar.gz Running setup.py egg_info for package carbon running egg_info creating pip-egg-info/carbon.egg-info writing requirements to pip-egg-info/carbon.egg-info/requires.txt writing pip-egg-info/carbon.egg-info/PKG-INFO writing top-level names to pip-egg-info/carbon.egg-info/top_level.txt writing dependency_links to pip-egg-info/carbon.egg-info/dependency_links.txt writing manifest file 'pip-egg-info/carbon.egg-info/SOURCES.txt' warning: manifest_maker: standard file '-c' not found package init file 'lib/twisted/plugins/__init__.py' not found (or not a regular file) reading manifest file 'pip-egg-info/carbon.egg-info/SOURCES.txt' writing manifest file 'pip-egg-info/carbon.egg-info/SOURCES.txt' Requirement already satisfied (use --upgrade to upgrade): twisted in /usr/local/lib/python2.7/dist-packages (from carbon) Requirement already satisfied (use --upgrade to upgrade): txamqp in /usr/local/lib/python2.7/dist-packages (from carbon) Requirement already satisfied (use --upgrade to upgrade): zope.interface in /usr/local/lib/python2.7/dist-packages (from twisted->carbon) Requirement already satisfied (use --upgrade to upgrade): distribute in /usr/local/lib/python2.7/dist-packages (from zope.interface->twisted->carbon) Installing collected packages: carbon Running setup.py install for carbon running install running build running build_py creating build creating build/lib.linux-i686-2.7 creating build/lib.linux-i686-2.7/carbon copying lib/carbon/amqp_publisher.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/manhole.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/instrumentation.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/cache.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/management.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/relayrules.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/events.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/protocols.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/conf.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/rewrite.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/hashing.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/writer.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/client.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/util.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/service.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/amqp_listener.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/routers.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/storage.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/log.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/__init__.py -> build/lib.linux-i686-2.7/carbon copying lib/carbon/state.py -> build/lib.linux-i686-2.7/carbon creating build/lib.linux-i686-2.7/carbon/aggregator copying lib/carbon/aggregator/receiver.py -> build/lib.linux-i686-2.7/carbon/aggregator copying lib/carbon/aggregator/rules.py -> build/lib.linux-i686-2.7/carbon/aggregator copying lib/carbon/aggregator/buffers.py -> build/lib.linux-i686-2.7/carbon/aggregator copying lib/carbon/aggregator/__init__.py -> build/lib.linux-i686-2.7/carbon/aggregator package init file 'lib/twisted/plugins/__init__.py' not found (or not a regular file) creating build/lib.linux-i686-2.7/twisted creating build/lib.linux-i686-2.7/twisted/plugins copying lib/twisted/plugins/carbon_relay_plugin.py -> build/lib.linux-i686-2.7/twisted/plugins copying lib/twisted/plugins/carbon_aggregator_plugin.py -> build/lib.linux-i686-2.7/twisted/plugins copying lib/twisted/plugins/carbon_cache_plugin.py -> build/lib.linux-i686-2.7/twisted/plugins copying lib/carbon/amqp0-8.xml -> build/lib.linux-i686-2.7/carbon running build_scripts creating build/scripts-2.7 copying and adjusting bin/validate-storage-schemas.py -> build/scripts-2.7 copying and adjusting bin/carbon-aggregator.py -> build/scripts-2.7 copying and adjusting bin/carbon-cache.py -> build/scripts-2.7 copying and adjusting bin/carbon-relay.py -> build/scripts-2.7 copying and adjusting bin/carbon-client.py -> build/scripts-2.7 changing mode of build/scripts-2.7/validate-storage-schemas.py from 664 to 775 changing mode of build/scripts-2.7/carbon-aggregator.py from 664 to 775 changing mode of build/scripts-2.7/carbon-cache.py from 664 to 775 changing mode of build/scripts-2.7/carbon-relay.py from 664 to 775 changing mode of build/scripts-2.7/carbon-client.py from 664 to 775 running install_lib copying build/lib.linux-i686-2.7/carbon/amqp_publisher.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/manhole.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/amqp0-8.xml -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/instrumentation.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/cache.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/management.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/relayrules.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/events.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/protocols.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/conf.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/rewrite.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/hashing.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/writer.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/client.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/util.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/aggregator/receiver.py -> /opt/graphite/lib/carbon/aggregator copying build/lib.linux-i686-2.7/carbon/aggregator/rules.py -> /opt/graphite/lib/carbon/aggregator copying build/lib.linux-i686-2.7/carbon/aggregator/buffers.py -> /opt/graphite/lib/carbon/aggregator copying build/lib.linux-i686-2.7/carbon/aggregator/__init__.py -> /opt/graphite/lib/carbon/aggregator copying build/lib.linux-i686-2.7/carbon/service.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/amqp_listener.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/routers.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/storage.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/log.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/__init__.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/carbon/state.py -> /opt/graphite/lib/carbon copying build/lib.linux-i686-2.7/twisted/plugins/carbon_relay_plugin.py -> /opt/graphite/lib/twisted/plugins copying build/lib.linux-i686-2.7/twisted/plugins/carbon_aggregator_plugin.py -> /opt/graphite/lib/twisted/plugins copying build/lib.linux-i686-2.7/twisted/plugins/carbon_cache_plugin.py -> /opt/graphite/lib/twisted/plugins byte-compiling /opt/graphite/lib/carbon/amqp_publisher.py to amqp_publisher.pyc byte-compiling /opt/graphite/lib/carbon/manhole.py to manhole.pyc byte-compiling /opt/graphite/lib/carbon/instrumentation.py to instrumentation.pyc byte-compiling /opt/graphite/lib/carbon/cache.py to cache.pyc byte-compiling /opt/graphite/lib/carbon/management.py to management.pyc byte-compiling /opt/graphite/lib/carbon/relayrules.py to relayrules.pyc byte-compiling /opt/graphite/lib/carbon/events.py to events.pyc byte-compiling /opt/graphite/lib/carbon/protocols.py to protocols.pyc byte-compiling /opt/graphite/lib/carbon/conf.py to conf.pyc byte-compiling /opt/graphite/lib/carbon/rewrite.py to rewrite.pyc byte-compiling /opt/graphite/lib/carbon/hashing.py to hashing.pyc byte-compiling /opt/graphite/lib/carbon/writer.py to writer.pyc byte-compiling /opt/graphite/lib/carbon/client.py to client.pyc byte-compiling /opt/graphite/lib/carbon/util.py to util.pyc byte-compiling /opt/graphite/lib/carbon/aggregator/receiver.py to receiver.pyc byte-compiling /opt/graphite/lib/carbon/aggregator/rules.py to rules.pyc byte-compiling /opt/graphite/lib/carbon/aggregator/buffers.py to buffers.pyc byte-compiling /opt/graphite/lib/carbon/aggregator/__init__.py to __init__.pyc byte-compiling /opt/graphite/lib/carbon/service.py to service.pyc byte-compiling /opt/graphite/lib/carbon/amqp_listener.py to amqp_listener.pyc byte-compiling /opt/graphite/lib/carbon/routers.py to routers.pyc byte-compiling /opt/graphite/lib/carbon/storage.py to storage.pyc byte-compiling /opt/graphite/lib/carbon/log.py to log.pyc byte-compiling /opt/graphite/lib/carbon/__init__.py to __init__.pyc byte-compiling /opt/graphite/lib/carbon/state.py to state.pyc byte-compiling /opt/graphite/lib/twisted/plugins/carbon_relay_plugin.py to carbon_relay_plugin.pyc byte-compiling /opt/graphite/lib/twisted/plugins/carbon_aggregator_plugin.py to carbon_aggregator_plugin.pyc byte-compiling /opt/graphite/lib/twisted/plugins/carbon_cache_plugin.py to carbon_cache_plugin.pyc running install_data copying conf/storage-schemas.conf.example -> /opt/graphite/conf copying conf/rewrite-rules.conf.example -> /opt/graphite/conf copying conf/relay-rules.conf.example -> /opt/graphite/conf copying conf/carbon.amqp.conf.example -> /opt/graphite/conf copying conf/aggregation-rules.conf.example -> /opt/graphite/conf copying conf/carbon.conf.example -> /opt/graphite/conf running install_egg_info running egg_info creating lib/carbon.egg-info writing requirements to lib/carbon.egg-info/requires.txt writing lib/carbon.egg-info/PKG-INFO writing top-level names to lib/carbon.egg-info/top_level.txt writing dependency_links to lib/carbon.egg-info/dependency_links.txt writing manifest file 'lib/carbon.egg-info/SOURCES.txt' warning: manifest_maker: standard file '-c' not found reading manifest file 'lib/carbon.egg-info/SOURCES.txt' writing manifest file 'lib/carbon.egg-info/SOURCES.txt' removing '/opt/graphite/lib/carbon-0.9.9-py2.7.egg-info' (and everything under it) Copying lib/carbon.egg-info to /opt/graphite/lib/carbon-0.9.9-py2.7.egg-info running install_scripts copying build/scripts-2.7/validate-storage-schemas.py -> /opt/graphite/bin copying build/scripts-2.7/carbon-aggregator.py -> /opt/graphite/bin copying build/scripts-2.7/carbon-cache.py -> /opt/graphite/bin copying build/scripts-2.7/carbon-relay.py -> /opt/graphite/bin copying build/scripts-2.7/carbon-client.py -> /opt/graphite/bin changing mode of /opt/graphite/bin/validate-storage-schemas.py to 775 changing mode of /opt/graphite/bin/carbon-aggregator.py to 775 changing mode of /opt/graphite/bin/carbon-cache.py to 775 changing mode of /opt/graphite/bin/carbon-relay.py to 775 changing mode of /opt/graphite/bin/carbon-client.py to 775 writing list of installed files to '/tmp/pip-9LuJTF-record/install-record.txt' Successfully installed carbon Cleaning up... Removing temporary dir /opt/graphite/build... root@statsd:/opt/graphite# For reference, this is pip 1.0 from /usr/lib/python2.7/dist-packages (python 2.7)

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  • Router stopping my python server

    - by drfrev
    This was originally posted in stackoverflow.com but it was suggested I move it here after it was realized it wasn't my code that was wrong. So my problem, very simply, is that I cannot get my computers that are connected to my router to communicate. example: If I ping a wireless computer I get no responce and the Request times out If I ping a computer wired to the modem directly it works fine. When I ping I use the local ip for each case. *if it helps my original post is here: http://stackoverflow.com/questions/12593024/python-cannot-go-over-internet-network/12593361#12593361 And some screen shots of different things are here: http://imgur.com/a/jUZ4G#3 thank you, any help is greatly appreciated. NOTE I am heading off to bed now, so I will respond around 6:00 AM EST if anyone posts some help

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  • Jailkit - allowing use of Java/Python

    - by James hooker
    I'm looking to allow Jailed users to use JAVA (JRE) to execute their own Java files, similarly with Python to execute py scripts. I've tried adding the JAVA binary (/usr/bin/java) to a jail using the following jk_cp /path/to/jail /usr/bin/java This seems to copy some of the libraries across, aswell as the Java binary itself, however the jailed user is still unable to execute Java. It complains first of all of a missing lib called libsli.so. I copied that across and it then complains about libjava.so which I proceeded to copy across to, to no avail. Does anyone have experience with enabling the execution of Java within a jailed environment? This is under Ubuntu 10.04 64-bit, with Jailkit 2.11.

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  • Python/Lesta.A worm

    - by Hanks
    My Nod32 have been catching something that is apparently identified as Python/Lesta.A worm. No matter how many times I tell Nod32 to delete and quarantine the file, it always re-appear, the situation will repeat about 3-4 times a day. This thing has been creating a folder called "pamela" in one of my drives, it sometimes also creates a "xxx.folder" file, which Nod32 identifies as "Exploit/CodeBase virus". I have Googled, and done pretty much everything related to this: a full scan in safe mode with no networking turned on, and also ran Ad-Aware, SpyBot, SpyHunter, ComboFix and cleaned the registry. Any idea how I can completely get rid of this annoying virus/worm?

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  • apache pointing to the wrong version of python on ubuntu how do I change?

    - by one
    I am setting up a flask application on and Ubuntu 12.04.3 LTS EC2 instance and everything seemed to be working well (i.e. I could get to the webpage via the publicly available url) until I tried to import a module (e.g. numpy) and realised the apache python differs from the one I used to compile the mod_wsgi and also the one I am using I am running apache2. The apache2 logs show the warnings (specifically the last line shows the path hasnt changed): [warn] mod_wsgi: Compiled for Python/2.7.5. [warn] mod_wsgi: Runtime using Python/2.7.3. [warn] mod_wsgi: Python module path '/usr/lib/python2.7/:/usr/lib/python2.7/plat-linux2:/usr/lib/python2.7/lib-tk:/usr/lib$ I have tried to set the path in my virtual host conf (my python is located in /home/ubuntu/anaconda/bin along with all of the other libraries): WSGIPythonHome /home/ubuntu/anaconda WSGIPythonPath /home/ubuntu/anaconda <VirtualHost *:80> ServerName xx-xx-xxx-xxx-xxx.compute-1.amazonaws.com ServerAdmin [email protected] WSGIScriptAlias / /var/www/microblog/microblog.wsgi <Directory /var/www/microblog/app/> Order allow,deny Allow from all </Directory> Alias /static /var/www/microblog/app/static <Directory /var/www/FlaskApp/FlaskApp/static/> Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> But I still get the warnings and the apache python path hasnt changed - where do I need to put the relevant directives to point apache at my python version and modules (e.g. scipy, numpy etc)? Separately, could I have avoided this using virtual environments? Thanks in advance.

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  • identation control while developing a small python like language

    - by sap
    Hello, Im developing a small python like language using flex, byacc (for lexical and parsing) and C++, but i have a few questions regarding scope control. just as python it uses white spaces (or tabs) for identation, not only that but i want to implement index breaking like for instance if you type "break 2" inside a while loop thats inside another while loop it would not only break from the last one but from the first loop as well (hence the number 2 after break) and so on. example: while 1 while 1 break 2 end end #after break 2 it would jump right here but since i dont have an "anti" tab character to check when a scope ends (like C for example i would just use the '}' char) i was wondering if this method would the the best: i would define a global variable, like "int tabIndex" on my yacc file that i would access in my lex file using extern. then everytime i find a tab character on my lex file i would increment that variable by 1. when parsing on my yacc file if i find a "break" keyword i would decrement by the amount typed after it from the tabIndex variable, and when i reach and EOF after compiling and i get a tabIndex != 0 i would output compilation error. now the problem is, whats the best way to see if the identation got reduced, should i read \b (backspace) chars from lex and then reduce the tabIndex variable (when the user doesnt use break)? another method to achieve this? also just another small question, i want every executable to have its starting point on the function called start() should i hardcode this onto my yacc file? sorry for the long question any help is greatly appretiated. also if someone can provide an yacc file for python would be nice as a guideline (tried looking on google and had no luck). thanks in advance.

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  • Grails + GAE - Issue using app.servlet.version=2.5

    - by Taylor L
    Updating the servlet version in application.properties to 2.5 has no affect on the generated web.xml. The generated web.xml is still version 2.4. app.servlet.version=2.5 Also, if I try to execute "run-app" I get the exception below: Running Grails application.. Starting AppEngine generated indices thread. Starting reload monitor thread. [java] Jan 26, 2010 5:27:05 AM com.google.apphosting.utils.jetty.JettyLogger warn [java] WARNING: Failed startup of context com.google.apphosting.utils.jetty.DevAppEngineWebAppContext@4178460d{/,C:\Users\Taylor Leese\workspace\test-gae\web-app} [java] java.lang.IllegalStateException: No such servlet: grails [java] at org.mortbay.jetty.servlet.ServletHandler.updateMappings(ServletHandler.java:953) [java] at org.mortbay.jetty.servlet.ServletHandler.setServletMappings(ServletHandler.java:1037) [java] at org.mortbay.jetty.webapp.WebXmlConfiguration.initialize(WebXmlConfiguration.java:305) [java] at org.mortbay.jetty.webapp.WebXmlConfiguration.configure(WebXmlConfiguration.java:222) [java] at org.mortbay.jetty.webapp.WebXmlConfiguration.configureWebApp(WebXmlConfiguration.java:180) [java] at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1215) [java] at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:500) [java] at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:448) [java] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40) [java] at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:117) [java] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40) [java] at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:117) [java] at org.mortbay.jetty.Server.doStart(Server.java:217) [java] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40) [java] at com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:188) [java] at com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:120) [java] at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:217) [java] at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:162) [java] at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48) [java] at com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:113) [java] at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:89) [java] The server is running at http://localhost:8080/ Any ideas how to resolve these issues?

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  • wmi not available for some time after reboot

    - by Alex Okrushko
    I'm having the problem with the WMI availability on logon. Right after reboot I open cmd and with python interpreter: >>> import wmi >>> c = wmi.WMI() >>> c.Win32_OperatingSystem() Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Python27\lib\site-packages\wmi.py", line 1147, in __getattr__ return getattr (self._namespace, attribute) File "C:\Python27\lib\site-packages\win32com\client\dynamic.py", line 516, in __getattr__ raise AttributeError("%s.%s" % (self._username_, attr)) AttributeError: winmgmts:.Win32_OperatingSystem >>> 5 minutes later I open another cmd and python interpreter: Python 2.7.3 (default, Apr 10 2012, 23:31:26) [MSC v.1500 32 bit (Intel)] on win 32 Type "help", "copyright", "credits" or "license" for more information. >>> import wmi >>> c = wmi.WMI() >>> c.Win32_OperatingSystem() [<_wmi_object: \\W520-ALEX-WIN7\root\cimv2:Win32_OperatingSystem=@>] >>> NOTE: the first cmd still keeps saying AttributeError even 5 minutes later. NOTE 2: if I logout and login wmi is available, so it is somehow effected by reboot with process explorer I check the environmental variables and they are the same for both cmds What could that be? Please help. UPDATE: Apparently the problem is connecting to the wbem services: >>> import win32com.client >>> win32com.client.Dispatch('WbemScripting.SWbemLocator') <COMObject WbemScripting.SWbemLocator> >>> wmi_service= win32com.client.Dispatch('WbemScripting.SWbemLocator') >>> wbem_service = wmi_service.ConnectServer('.','root/cimv2') >>> wbem_service <COMObject <unknown>> >>> items = wbem_service.ExecQuery('Select * from Win32_OperatingSystem') Traceback (most recent call last): File "<stdin>", line 1, in <module> File "<COMObject <unknown>>", line 3, in ExecQuery File "C:\Python27\lib\site-packages\win32com\client\dynamic.py", line 282, in _ApplyTypes_ result = self._oleobj_.InvokeTypes(*(dispid, LCID, wFlags, retType, argTypes ) + args) pywintypes.com_error: (-2147352567, 'Exception occurred.', (0, u'SWbemServicesEx ', u'Generic failure ', None, 0, -2147217407), None) >>> NOTE 3: wmic os always worked. NOTE 4: re-installing pywin32 package didn't help. Neither did Re-registering/re-compiling the WMI components and resetting of the WMI database (as recommended here) NOTE 5: my 4 Other laptops don't have this problem. Also wmiprov.log has: (Mon Oct 29 11:40:07 2012.248587) : *************************************** (Mon Oct 29 11:40:07 2012.248587) : Could not get pointer to binary resource for file: (Mon Oct 29 11:40:07 2012.248587) : C:\Windows\system32\drivers\ndis.sys[MofResourceName](Mon Oct 29 11:40:07 2012.248587) : (Mon Oct 29 11:40:07 2012.248587) : *************************************** (Mon Oct 29 11:40:07 2012.248587) : *************************************** (Mon Oct 29 11:40:07 2012.248587) : Could not get pointer to binary resource for file: (Mon Oct 29 11:40:07 2012.248587) : C:\Windows\system32\drivers\en-US\ndis.sys.mui[MofResourceName](Mon Oct 29 11:40:07 2012.248587) : (Mon Oct 29 11:40:07 2012.248587) : *************************************** (Mon Oct 29 11:40:07 2012.248603) : *************************************** (Mon Oct 29 11:40:07 2012.248603) : Could not get pointer to binary resource for file: (Mon Oct 29 11:40:07 2012.248603) : C:\Windows\system32\DRIVERS\wmiacpi.sys[MofResource](Mon Oct 29 11:40:07 2012.248603) : (Mon Oct 29 11:40:07 2012.248603) : *************************************** (Mon Oct 29 11:40:07 2012.248603) : *************************************** (Mon Oct 29 11:40:07 2012.248603) : Could not get pointer to binary resource for file: (Mon Oct 29 11:40:07 2012.248603) : C:\Windows\system32\DRIVERS\monitor.sys[MonitorWMI](Mon Oct 29 11:40:07 2012.248603) : (Mon Oct 29 11:40:07 2012.248603) : *************************************** NOTE 6: the WMIDiag tool report is at my dropbox

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  • Django and Google App Engine Helper not finding the ipaddr module.

    - by Phil
    I'm trying to get Django running on GAE using this tutorial. When I run python manage.py runserver I get the stacktrace below. I'm new to both django and python so I don't know what my next steps are (This is Ubuntu Jaunty btw). It seems django isn't finding the GAE module ipaddr which comes with SDK 1.3.1. How do I get django to find this module? /home/username/bin/google_appengine/google/appengine/api/datastore_file_stub.py:40: DeprecationWarning: the md5 module is deprecated; use hashlib instead import md5 /home/username/bin/google_appengine/google/appengine/api/memcache/__init__.py:31: DeprecationWarning: the sha module is deprecated; use the hashlib module instead import sha Traceback (most recent call last): File "manage.py", line 18, in <module> InstallAppengineHelperForDjango() File "/home/username/Development/GAE/myapp/appengine_django/__init__.py", line 543, in InstallAppengineHelperForDjango InstallDjangoModuleReplacements() File "/home/username/Development/GAE/myapp/appengine_django/__init__.py", line 260, in InstallDjangoModuleReplacements import django.db File "/home/username/Development/GAE/myapp/django/db/__init__.py", line 57, in <module> 'TIME_ZONE': settings.TIME_ZONE, File "/home/username/Development/GAE/myapp/appengine_django/db/base.py", line 117, in __init__ self._setup_stubs() File "/home/username/Development/GAE/myapp/appengine_django/db/base.py", line 128, in _setup_stubs from google.appengine.tools import dev_appserver_main File "/home/username/bin/google_appengine/google/appengine/tools/dev_appserver_main.py", line 82, in <module> from google.appengine.tools import appcfg File "/home/username/bin/google_appengine/google/appengine/tools/appcfg.py", line 53, in <module> from google.appengine.api import dosinfo File "/home/username/bin/google_appengine/google/appengine/api/dosinfo.py", line 25, in <module> import ipaddr ImportError: No module named ipaddr

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  • Problems using Maven to initialize a local thoughtsite (App Engine sample) project in Eclipse

    - by ovr
    This sample app ("thoughtsite") for App Engine contains a pom.xml in its trunk: http://code.google.com/p/thoughtsite/source/browse/#svn/trunk I ran mvn eclipse:eclipse and also tried using m2eclipse to import this source code into an Eclipse project. But I end up with this error despite the fact that I have the Google App Engine plugin and the Google App Engine SDK installed: Exception in thread "main" java.lang.ExceptionInInitializerError at com.google.appengine.tools.info.SdkImplInfo.<clinit>(SdkImplInfo.java:19) at com.google.appengine.tools.util.Logging.initializeLogging(Logging.java:36) at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:82) Caused by: java.lang.RuntimeException: Unable to discover the Google App Engine SDK root. This code should be loaded from the SDK directory, but was instead loaded from file:~/.m2/repository/com/google/appengine/appengine-tools-sdk/1.3.0/appengine-tools-sdk-1.3.0.jar. Specify -Dappengine.sdk.root to override the SDK location. at com.google.appengine.tools.info.SdkInfo.findSdkRoot(SdkInfo.java:106) at com.google.appengine.tools.info.SdkInfo.<clinit>(SdkInfo.java:24) ... 3 more When I go into the project settings under "Google" and try to set it to use the default App Engine SDK it always reverts to trying to use Maven's App Engine SDK instead. No idea how to get this project working.

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  • Where do I start ?

    - by Panthe
    Brief History: Just graduated high school, learned a bit of python and C++, have no friends with any helpful computer knowledge at all. Out of anyone i met in my school years I was probably the biggest nerd, but no one really knew. I consider my self to have a vast amount of knowledge on computers and tech then the average person. built/fixed tons of computers, and ability to troubleshoot pretty much any problem I came across. Now that high school is over, Ive really been thinking about my career. Loving, living computers for the past 15 years of my life I decided to take my ability's and try to learn computer programming, why I didn't start earlier I don't know, seems to be big mistake on my part... Doing some research I concluded that Python was the first programming language I should learn, since it was high level and easier to understand then C++ and Java. I also knew that to become good at what I did I needed to know more then just 2 or 3 languages, which didn't seem like a big problem considering once I learned the way Python worked, mainly syntax changed, and the rest would come naturally. I watched a couple of youtube videos, downloaded some book pdf's and snooped around from some tutorials here and there to get the hang of what to do. A two solid weeks had passed of trying to understand the syntax, create small programs that used the basic functions and understanding how it worked, I think i have got the hang of it. It breaks down into what ive been dealing with all this time (although i kinda knew) is that, input,output, loops, functions and other things derived from 0's and 1's storing data and recalling it, ect. (A VERY BASIC IDEA). Ive been able to create small programs, Hangman, file storing, temperature conversion, Caeser Cipher decode/encoding, Fibonacci Sequence and more, which i can create and understand how each work. Being 2 weeks into this, I have learned alot. Nothing at all compared to what i should be learning in the years to come if i get a grip on what I'm doing. While doing these programs I wont stop untill I've done doing a practice problem on a book, which embarresing enough will take me a couple hour depending on the complexity of it. I absolutly will not put aside the challenge until its complete, WHICH CAN BE EXTREMELY DRAINING, ive tried most problems without cheating and reached success, which makes me feel extremely proud of my self after completing something after much trial and error. After all this I have met the demon, alogrithm's which seem to be key to effiecent code. I cant seem to rap my head around some of the computer codes people put out there using numbers, and sometimes even basic functions, I have been able to understand them after a while but i know there are alot more complex things to come, considering my self smart, functions that require complex codes, actually hurt my brain. NOTHING EVER IN LIFE HURT MY BRAIN....... not even math classes in highschool, trying to understand some of the stuff people put out there makes me feel like i have a mental disadvantage lol... i still walk forward though, crossing my fingers that the understanding will come with time. Sorry if is this is long i just wish someone takes all these things into consideration when answering my question. even through all these downsides im still pushing through and continuing to try and get good at this, i know reading these tutorials wont make me any good unless i can become creative and make my own, understand other peoples programs, so this leads me to the simple question i could have asked in the beginning..... WHERE IN THE WORLD DO I START ? Ive been trying to find out how to understand some of the open source projects, how i can work with experianced coders to learn from them and help them, but i dont think thats even possible by the way how far people's knowledge is compared to me, i have no freinds who i can learn from, can someone help me and guide me into the right direction.. i have a huge motivation to get good at coding, anything information would be extremely helpful

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  • Indentation control while developing a small python like language

    - by sap
    Hello, I'm developing a small python like language using flex, byacc (for lexical and parsing) and C++, but i have a few questions regarding scope control. just as python it uses white spaces (or tabs) for indentation, not only that but i want to implement index breaking like for instance if you type "break 2" inside a while loop that's inside another while loop it would not only break from the last one but from the first loop as well (hence the number 2 after break) and so on. example: while 1 while 1 break 2 'hello world'!! #will never reach this. "!!" outputs with a newline end 'hello world again'!! #also will never reach this. again "!!" used for cout end #after break 2 it would jump right here but since I don't have an "anti" tab character to check when a scope ends (like C for example i would just use the '}' char) i was wondering if this method would the the best: I would define a global variable, like "int tabIndex" on my yacc file that i would access in my lex file using extern. then every time i find a tab character on my lex file i would increment that variable by 1. when parsing on my yacc file if i find a "break" keyword i would decrement by the amount typed after it from the tabIndex variable, and when i reach and EOF after compiling and i get a tabIndex != 0 i would output compilation error. now the problem is, whats the best way to see if the indentation got reduced, should i read \b (backspace) chars from lex and then reduce the tabIndex variable (when the user doesn't use break)? another method to achieve this? also just another small question, i want every executable to have its starting point on the function called start() should i hardcode this onto my yacc file? sorry for the long question any help is greatly appreciated. also if someone can provide an yacc file for python would be nice as a guideline (tried looking on Google and had no luck). thanks in advance.

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  • How do I learn algorithms?

    - by Panthe
    Brief History: Just graduated high school, learned a bit of python and C++, have no friends with any helpful computer knowledge at all. Out of anyone i met in my school years I was probably the biggest nerd, but no one really knew. I consider my self to have a vast amount of knowledge on computers and tech then the average person. built/fixed tons of computers, and ability to troubleshoot pretty much any problem I came across. Now that high school is over, Ive really been thinking about my career. Loving, living computers for the past 15 years of my life I decided to take my ability's and try to learn computer programming, why I didn't start earlier I don't know, seems to be big mistake on my part... Doing some research I concluded that Python was the first programming language I should learn, since it was high level and easier to understand then C++ and Java. I also knew that to become good at what I did I needed to know more then just 2 or 3 languages, which didn't seem like a big problem considering once I learned the way Python worked, mainly syntax changed, and the rest would come naturally. I watched a couple of youtube videos, downloaded some book pdf's and snooped around from some tutorials here and there to get the hang of what to do. A two solid weeks had passed of trying to understand the syntax, create small programs that used the basic functions and understanding how it worked, I think i have got the hang of it. It breaks down into what ive been dealing with all this time (although i kinda knew) is that, input,output, loops, functions and other things derived from 0's and 1's storing data and recalling it, ect. (A VERY BASIC IDEA). Ive been able to create small programs, Hangman, file storing, temperature conversion, Caeser Cipher decode/encoding, Fibonacci Sequence and more, which i can create and understand how each work. Being 2 weeks into this, I have learned alot. Nothing at all compared to what i should be lear ning in the years to come if i get a grip on what I'm doing. While doing these programs I wont stop untill I've done doing a practice problem on a book, which embarresing enough will take me a couple hour depending on the complexity of it. I absolutly will not put aside the challenge until its complete, WHICH CAN BE EXTREMELY DRAINING, ive tried most problems without cheating and reached success, which makes me feel extremely proud of my self after completing something after much trial and error. After all this I have met the demon, alogrithm's which seem to be key to effiecent code. I cant seem to rap my head around some of the computer codes people put out there using numbers, and sometimes even basic functions, I have been able to understand them after a while but i know there are alot more complex things to come, considering my self smart, functions that require complex codes, actually hurt my brain. NOTHING EVER IN LIFE HURT MY BRAIN....... not even math classes in highschool, trying to understand some of the stuff people put out there makes me feel like i have a mental disadvantage lol... i still walk forward though, crossing my fingers that the understanding will come with time. Sorry if is this is long i just wish someone takes all these things into consideration when answering my question. even through all these downsides im still pushing through and continuing to try and get good at this, i know reading these tutorials wont make me any good unless i can become creative and make my own, understand other peoples programs, so this leads me to the simple question i could have asked in the beginning..... WHERE IN THE WORLD DO I START ? Ive been trying to find out how to understand some of the open source projects, how i can work with experianced coders to learn from them and help them, but i dont think thats even possible by the way how far people's knowledge is compared to me, i have no freinds who i can learn from, can someone help me and guide me into the right direction.. i have a huge motivation to get good at coding, anything information would be extremely helpful

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  • How can I create a user registration form using datastore - google appengine ??

    - by srivigneshwar
    I am very new to jsp and google appengine , but still I can do something if I get some basic idea , I wanna create an user registration form with fields like name, user id , password, confirm password, etc,. using google appengine datastore feature. and I wanna retrieve user information . Please help me .. Thanks in advance. Thanks for the replies, I need to get some information from user and I want to store it in database, and I will use that information for my application. How can I do that?

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  • How to reference another project in Eclipse with Google appengine project?

    - by virsir
    I am trying to extract some common classes out to be a common jar, and I want to reference it by the appengine project in Eclipse. It compiles well but could not run. The console just told that some classes from the common jar project could not be found. I know I can just export the project into a jar, but I may want to change it sometimes, so I prefer keep it dynamic. And I know maven may be an option but there is no official maven support for appengine, and I will not try to learn it. Then how can I make it work?

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  • How to retrieve Google Appengine Objects by id (Long value) ?

    - by David
    Hi, i have declared an entity the following way: public class MyEntity { @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) private Long id; @Persistent private String text; //getters and setters } Now I want to retrieve the objects using the id. I tried to manage it from the Google Appengine Data Viewer with "SELECT * FROM MyEntity Where id = 382005" or via a query in a servlet. I get no results returned. But i know for sure that the object with the id exists (i made a jsp which queries all objects in the db and displays them in the db). So what is wrong in my query? Am I querying the wrong field? The Google Appengine Data Viewer names the field "ID/name" and it has the value "id=382005". Do I have to query with this names? I've tried but it didn't work out :(

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  • Label in PyQt4 GUI not updating with every loop of FOR loop

    - by user297920
    I'm having a problem, where I wish to run several command line functions from a python program using a GUI. I don't know if my problem is specific to PyQt4 or if it has to do with my bad use of python code. What I wish to do is have a label on my GUI change its text value to inform the user which command is being executed. My problem however, arises when I run several commands using a for loop. I would like the label to update itself with every loop, however, the program is not updating the GUI label with every loop, instead, it only updates itself once the entire loop is completed, and displays only the last command that was executed. I am using PyQt4 for my GUI environment. And I have established that the text variable for the label is indeed being updated with every loop, but, it is not actually showing up visually in the GUI. Is there a way for me to force the label to update itself? I have tried the update() and repaint() methods within the loop, but they don't make any difference. I would really appreciate any help. Thank you. Ronny. Here is the code I am using: # -*- coding: utf-8 -*- import sys, os from PyQt4 import QtGui, QtCore Gui = QtGui Core = QtCore # ================================================== CREATE WINDOW OBJECT CLASS class Win(Gui.QWidget): def __init__(self, parent = None): Gui.QWidget.__init__(self, parent) # --------------------------------------------------- SETUP PLAY BUTTON self.but1 = Gui.QPushButton("Run Commands",self) self.but1.setGeometry(10,10, 200, 100) # -------------------------------------------------------- SETUP LABELS self.label1 = Gui.QLabel("No Commands running", self) self.label1.move(10, 120) # ------------------------------------------------------- SETUP ACTIONS self.connect(self.but1, Core.SIGNAL("clicked()"), runCommands) # ======================================================= RUN COMMAND FUNCTION def runCommands(): for i in commands: win.label1.setText(i) # Make label display the command being run print win.label1.text() # This shows that the value is actually # changing with every loop, but its just not # being reflected in the GUI label os.system(i) # ======================================================================== MAIN # ------------------------------------------------------ THE TERMINAL COMMANDS com1 = "espeak 'senntence 1'" com2 = "espeak 'senntence 2'" com3 = "espeak 'senntence 3'" com4 = "espeak 'senntence 4'" com5 = "espeak 'senntence 5'" commands = (com1, com2, com3, com4, com5) # --------------------------------------------------- SETUP THE GUI ENVIRONMENT app = Gui.QApplication(sys.argv) win = Win() win.show() sys.exit(app.exec_())

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