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  • How secure is cloud computing?

    - by Rhubarb
    By secure, I don't mean the machines itself and access to it from the network. I mean, and I suppose this could be applied to any kind of hosting service, when you put all your intellectual property onto a hosted provider, what happens to the hard disks as they cycle through them? Say I've invested million into my software, and the information and data that I have is valuable, how can I be sure it isn't read off old disks as they're recycled? Is there some kind of standard to look for that ensures a provider is going to use the strictest form of intellectual property protection? Is SAS70 applicable here?

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  • Google bar chart not allowing me to label two bars?

    - by Rhubarb
    Take the following chart. Everything is as I want except the 2nd label, 'Two', is being ignored, and the first label is being centered beneath both bars. Any idea what I'm doing wrong? http://chart.apis.google.com/chart?cht=bvg&chs=200x200&chd=t:10|80&chco=000000,333666&chxt=x,y&chl=One|Two

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  • Dreaded python encoding errors, how to stop them?

    - by Rhubarb
    These have been plaguing me endlessly. Why? It seems that my console can't handle the encoding. I take it that the my browser and word processor can handle it. I don't have a master list of all the possible characters that it's choking on. What is the best way to relieve this without modifying my data? 'charmap' codec can't encode character u'\xca'

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  • Changing models in django results in broken database?

    - by Rhubarb
    I have added and removed fields in my models.py file and then run manage.py syncdb. Usually I have to quit out of the shell and restart it before syncdb does anything. And then even after that, I am getting errors when trying to access the admin pages, it seems that certain new fields that I've added still don't show up in the model: Caught an exception while rendering: no such column: mySite_book.Title

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  • feedparser fails during script run, but can't reproduce in interactive python console

    - by Rhubarb
    It's failing with this when I run eclipse or when I run my script in iPython: 'ascii' codec can't decode byte 0xe2 in position 32: ordinal not in range(128) I don't know why, but when I simply execute the feedparse.parse(url) statement using the same url, there is no error thrown. This is stumping me big time. The code is as simple as: try: d = feedparser.parse(url) except Exception, e: logging.error('Error while retrieving feed.') logging.error(e) logging.error(formatExceptionInfo(None)) logging.error(formatExceptionInfo1()) Here is the stack trace: d = feedparser.parse(url) File "C:\Python26\lib\site-packages\feedparser.py", line 2623, in parse feedparser.feed(data) File "C:\Python26\lib\site-packages\feedparser.py", line 1441, in feed sgmllib.SGMLParser.feed(self, data) File "C:\Python26\lib\sgmllib.py", line 104, in feed self.goahead(0) File "C:\Python26\lib\sgmllib.py", line 143, in goahead k = self.parse_endtag(i) File "C:\Python26\lib\sgmllib.py", line 320, in parse_endtag self.finish_endtag(tag) File "C:\Python26\lib\sgmllib.py", line 360, in finish_endtag self.unknown_endtag(tag) File "C:\Python26\lib\site-packages\feedparser.py", line 476, in unknown_endtag method() File "C:\Python26\lib\site-packages\feedparser.py", line 1318, in _end_content value = self.popContent('content') File "C:\Python26\lib\site-packages\feedparser.py", line 700, in popContent value = self.pop(tag) File "C:\Python26\lib\site-packages\feedparser.py", line 641, in pop output = _resolveRelativeURIs(output, self.baseuri, self.encoding) File "C:\Python26\lib\site-packages\feedparser.py", line 1594, in _resolveRelativeURIs p.feed(htmlSource) File "C:\Python26\lib\site-packages\feedparser.py", line 1441, in feed sgmllib.SGMLParser.feed(self, data) File "C:\Python26\lib\sgmllib.py", line 104, in feed self.goahead(0) File "C:\Python26\lib\sgmllib.py", line 138, in goahead k = self.parse_starttag(i) File "C:\Python26\lib\sgmllib.py", line 296, in parse_starttag self.finish_starttag(tag, attrs) File "C:\Python26\lib\sgmllib.py", line 338, in finish_starttag self.unknown_starttag(tag, attrs) File "C:\Python26\lib\site-packages\feedparser.py", line 1588, in unknown_starttag attrs = [(key, ((tag, key) in self.relative_uris) and self.resolveURI(value) or value) for key, value in attrs] File "C:\Python26\lib\site-packages\feedparser.py", line 1584, in resolveURI return _urljoin(self.baseuri, uri) File "C:\Python26\lib\site-packages\feedparser.py", line 286, in _urljoin return urlparse.urljoin(base, uri) File "C:\Python26\lib\urlparse.py", line 215, in urljoin params, query, fragment)) File "C:\Python26\lib\urlparse.py", line 184, in urlunparse return urlunsplit((scheme, netloc, url, query, fragment)) File "C:\Python26\lib\urlparse.py", line 192, in urlunsplit url = scheme + ':' + url File "C:\Python26\lib\encodings\cp1252.py", line 15, in decode return codecs.charmap_decode(input,errors,decoding_table)

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  • Works in Google charts but not in Eastwood?

    - by Rhubarb
    This chart works fine in Google charts, but when rendered in Eastwood, it doesn't use the 2nd provided color, rather it applies the first color to both bars in the chart. http://chart.apis.google.com/chart?cht=bvg&chs=150x150&chd=t:18,81&chco=FFF000|00FFFF&chxt=x,y&chl=Bar1|Bar2&chtt=Chart Any suggestions as to why this could be? Unfortunately it looks like Eastwood is somewhat abandoned.

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  • What good alternatives are there to Google Charts?

    - by Rhubarb
    I have been experimenting with Google charts. Are there any alternatives that are reasonably as expressive but can be installed locally on your own web server? I don't like the idea of relying on an outside entity for a feature to work. Even if it is for cost, it would be preferable. Any suggestions?

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  • Getting weird python error when I run a simple django script in Eclipse, not happening in console

    - by Rhubarb
    I am running a basic script that sets up the django environment by itself, to enable me to test the ORM features of django without having to implement web pages. The script then imports one of the types defined in my models. This error doesn't happen when I run this script from iPython, only from eclipse. Simply doing this import causes a weird exception like the following: Exception AttributeError: "'NoneType' object has no attribute 'print_exc'" in <bound method Signal._remove_receiver of <django.dispatch.dispatcher.Signal object at 0x026802B0>> ignored My script is as follows: from django.core.management import setup_environ import settings setup_environ(settings) from stats.models import Person for p in Person.objects.all(): print p.Name

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  • Can I filter a django model with a python list?

    - by Rhubarb
    Say I have a model object 'Person' defined, which has a field called 'Name'. And I have a list of people: l = ['Bob','Dave','Jane'] I would like to return a list of all Person records where the first name is not in the list of names defined in l. What is the most pythonic way of doing this?

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  • Are there any well known algorithms to detect the presence of names?

    - by Rhubarb
    For example, given a string: "Bob went fishing with his friend Jim Smith." Bob and Jim Smith are both names, but bob and smith are both words. Weren't for them being uppercase, there would be less indication of this outside of our knowledge of the sentence. Without doing grammar analysis, are there any well known algorithms for detecting the presence of names, at least Western names?

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  • What considerations should be made for a web app to be released on a cloud hosted system?

    - by Rhubarb
    I have a web app that is primarily a WordPress app, but it pulls content from a Django app, simply by calling a service that uses Django models. My understanding of cloud computing is a bit vague. If the site needs to scale up with short notice, does the cloud provider (Amazon, Rackspace, whomever) simply spin up new instances (copies) of my initially configured server? How is state managed between all of them? Are there any good primers on this subject? It's hard to find much out there without getting caught up in the marketing.

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  • Basic SQL Select in Postgresql fails

    - by Rhubarb
    I am doing a select * on a postgresql table, and everything looks good. But if I do: SELECT Name from People It says: ERROR: column People.Name does not exist SQL state: 42703 Character: 8 But the name column shows up during select *. I've tried: SELECT People.Name from People as well, with the same result. Am I missing something? It should be pretty easy to do this in any other database.

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  • How do I uninstall Django Evolution?

    - by Rhubarb
    I installed it in my dev project. I would like to remove it and any trace of it in my database and my django app, not to mention my python install. I found it didn't quite do what I needed, but that's another topic, and I'm moving to South. Can I just delete the evolution tables in my django db, and remove it from the app settings? Or is there more to it?

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  • For distributed applications, which to use, ASIO vs. MPI?

    - by Rhubarb
    I am a bit confused about this. If you're building a distributed application, which in some cases may perform parallel operations (although not necessarily mathematical), should you use ASIO or something like MPI? I take it MPI is a higher level than ASIO, but it's not clear where in the stack one would begin.

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  • What's the fastest way to strip and replace a document of high unicode characters using Python?

    - by Rhubarb
    I am looking to replace from a large document all high unicode characters, such as accented Es, left and right quotes, etc., with "normal" counterparts in the low range, such as a regular 'E', and straight quotes. I need to perform this on a very large document rather often. I see an example of this in what I think might be perl here: http://www.designmeme.com/mtplugins/lowdown.txt Is there a fast way of doing this in Python without using s.replace(...).replace(...).replace(...)...? I've tried this on just a few characters to replace and the document stripping became really slow.

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