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• Installing PyGraphViz on Windows, Python 2.7

  - by user574043

  I can't install pygraphviz on Windows XP. I'm using Python27. Before to launch the setup I've changet these two variables of the setup.py file library_path="C:\\Archivos de programa\\Graphviz 2.28\\bin" include_path="C:\\Archivos de programa\\Graphviz 2.28\\include\\graphviz" Then I've launched the setup. I'm using mingw32 as a compiler. I don't know what can I do now. I'm using the following command: C:\Python27\pygraphviz-1.1>c:\python27\python setup.py build -c mingw32 And I've got the folling result library_path=C:\Archivos de programa\Graphviz 2.28\bin include_path=C:\Archivos de programa\Graphviz 2.28\include\graphviz running build running build_py running build_ext building 'pygraphviz._graphviz' extension C:\MinGW\bin\gcc.exe -mno-cygwin -mdll -O -Wall "-IC:\Archivos de programa\Graphviz 2.28\include\graphviz" -Ic:\python27\include -Ic:\python 27\PC -c pygraphviz/graphviz_wrap.c -o build\temp.win32-2.7\Release\pygraphviz\graphviz_wrap.o pygraphviz/graphviz_wrap.c: In function 'agattr_label': pygraphviz/graphviz_wrap.c:2855:5: warning: return makes integer from pointer without a cast writing build\temp.win32-2.7\Release\pygraphviz\_graphviz.def Traceback (most recent call last): File "setup.py", line 146, in <module> package_data = package_data File "c:\python27\lib\distutils\core.py", line 152, in setup dist.run_commands() File "c:\python27\lib\distutils\dist.py", line 953, in run_commands self.run_command(cmd) File "c:\python27\lib\distutils\dist.py", line 972, in run_command cmd_obj.run() File "c:\python27\lib\distutils\command\build.py", line 127, in run self.run_command(cmd_name) File "c:\python27\lib\distutils\cmd.py", line 326, in run_command self.distribution.run_command(command) File "c:\python27\lib\distutils\dist.py", line 972, in run_command cmd_obj.run() File "c:\python27\lib\distutils\command\build_ext.py", line 340, in run self.build_extensions() File "c:\python27\lib\distutils\command\build_ext.py", line 449, in build_extensions self.build_extension(ext) File "c:\python27\lib\distutils\command\build_ext.py", line 531, in build_extension target_lang=language) File "c:\python27\lib\distutils\ccompiler.py", line 741, in link_shared_object extra_preargs, extra_postargs, build_temp, target_lang) File "c:\python27\lib\distutils\cygwinccompiler.py", line 260, in link target_lang) File "c:\python27\lib\distutils\unixccompiler.py", line 218, in link libraries) File "c:\python27\lib\distutils\ccompiler.py", line 1121, in gen_lib_options opt = compiler.runtime_library_dir_option(dir) File "c:\python27\lib\distutils\unixccompiler.py", line 285, in runtime_library_dir_option compiler = os.path.basename(sysconfig.get_config_var("CC")) File "c:\python27\lib\ntpath.py", line 198, in basename return split(p)[1] File "c:\python27\lib\ntpath.py", line 170, in split d, p = splitdrive(p) File "c:\python27\lib\ntpath.py", line 125, in splitdrive if p[1:2] == ':': TypeError: 'NoneType' object is not subscriptable Any idea on how to solve it over windows? In other computer with Ubuntu I've installed without problems.

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• Equivalent Javascript Functions for Python's urllib.quote() and urllib.unquote()

  - by Cameron

  Hello, Are there any equivalent Javascript functions for Python's urllib.quote() and urllib.unquote()? The closest I've come across are escape(), encodeURI(), and encodeURIComponent() (and their corresponding un-encoding functions), but they don't encode/decode the same set of special characters as far as I can tell. Thanks, Cameron

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• Extracting words between delimiters [] in python

  - by kris

  From the below string, I want to extract the words between delimters [ ] like 'Service Current','Service','9991','1.22': str='mysrv events Generating Event Name [Service Current], Category [Service] Test [9991] Value [1.22]' How can I extract the same in python? Thanks in advance Kris

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• Python memory leaks

  - by Fragsworth

  I have a long-running script which, if let to run long enough, will consume all the memory on my system. Without going into details about the script, I have two questions: Are there any "Best Practices" to follow, which will help prevent leaks from occurring? What techniques are there to debug memory leaks in Python?

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• Python importing

  - by Algorist

  Hi, If I have a file myfile.py, which imports Class1 from file.py and file.py contains imports to different classes in file2.py, file3.py, file4.py. In my myfile.py, can I access these classes or do I need to again import file2.py, file3.py etc... My question is whether python automatically add all the imports included in the file I imported, and can I use them automatically. Thank you. Bala

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• How Do I code this in python with simplejson

  - by Spikie

  how do i code a python program that return a json element that look like this {1:{'name':foo,'age':xl} 2:{'name':vee,'age':xx} .... } What i meant is that i want return nested dictionaries What i hoped to accomplish is something like this var foo = 1.name # to the the value of name in the clientside I hope all this made sense .English is my second language thanks in advance

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• Accessing a JET (.mdb) database in Python

  - by Honza Pokorny

  Is there a way to access a JET database from Python? I'm on Linux. All I found was a .mdb viewer in the repositories, but it's very faulty. Thanks

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• Disable comments/ratings with YouTube Python API?

  - by Isabella

  Hi, does anyone know if it's possible to disable YouTube ratings/comments using the Python API? I know you can do it using the 'yt:accessControl' tag in the XML request but I have no idea how to build a request manually. Any help would be appreciated :)

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• Get parent directory in Python

  - by Mridang Agarwalla

  Hi, Could someone tell me how to get the parent directory of a path in Python in a cross platform way. E.g. C:\Program Files --- C:\ and C:\ --- C:\ If the directory doesn't have a parent directory, it returns the directory itself. The question might seem simple but I couldn't dig it up through Google. Thanks.

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• Card game in python

  - by matt1024

  What is the best way to store the cards and suits in python so that I can hold a reference to these values in another variable? For example, if I have a list called hand (cards in players hand), how could I hold values that could refer to the names of suits and values of specific cards, and how would these names and values of suits and cards be stored?

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• Problems with umlauts in python appdata environvent variable

  - by Heike

  Hi, I can't find a correct way to get the environment variable for the appdata path in python. The problem is that my user name includes special characters (the german ae and ue). I made a workaround wit PyQt for Vista and Windows 7 but it doesn't work for XP Systems. Does anybody know the correct encoding of these environment variables or another solution for this problem? Greetz

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• Extracting a URL in Python

  - by Kyle Hayes

  In regards to: http://stackoverflow.com/questions/720113/find-hyperlinks-in-text-using-python-twitter-related How can I extract just the url so I can put it into a list/array? Edit Let me clarify, I don't want to parse the URL into pieces. I want to extract the URL from the text of the string to put it into an array. Thanks!

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• Code a timer in a python GUI in TKinter

  - by Diego Castro

  I need to code a program with GUI in python (I'm thinking of using TKinter, 'cause it's easy, but I'm open to suggestions). My major problem is that I don't know how to code a timer (like a clock... like 00:00:00,00 hh:mm:ss,00 ) I need it to update it self (that's what I don't know how to do) Another question is how do I put a program in the system tray (I don't think it's called like that in Linux) for UBUNTU.

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• Searching for specific HTML string using Python

  - by Morpheous

  What modules would be the best to write a python program that searches through hundreds of html documents and deletes a certain string of html that is given. For instance, if I have an html doc that has <a href="test.html">Test</a> and I want to delete this out of every html page that has it. Any help is much appreciated, and I don't need someone to write the program for me, just a helpful point in the right direction.

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• read a text field in Python using regular expressions

  - by David

  I have text file, like FILED AS OF DATE: 20090209 DATE AS OF CHANGE: 20090209 I need to find the position using FILED AS OF DATE: and read the date. I know how to do it using python strings. But using a regular expression seems cooler:) Btw, how to parse the date? Thanks!

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• Detect marker with opencv and python

  - by Mitch

  Hi im trying to detect a marker in a webcam video feed and overlay it with a 3d object - pretty much exactly like this: http://www.morethantechnical.com/2009/06/28/augmented-reality-with-nyartoolkit-opencv-opengl/ i know artoolkit is the best module for this, but i was hoping to just use opencv in python since i dont know nearly enough c/c++ to be able to use artoolkit. im hoping someone will be able to get me on the right track towards detecting the marker and determining its location and orientation etc since i have no idea how best to go about this or what functions i should be using thanks mitch

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• Populate a list from xml using python

  - by Sam

  I have an xml file in the following format: <food> <desert> cake <desert> </food> <history> currently in my belly </history> I want to create two list, food and text populated with cake and history in string format. Is there an easy way to do it in python?

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• running a python script where dependencies are not avail: distributed computing

  - by sadhu_

  Hi, I have access to a grid (running condor) that would (potentially) allow to very substantially reduce how long by nltk based nlp tasks take. unfortunately, i dont have root access on the cluster so cannot install new packages, only run whatever is available on the linux boxes. python is of course available, but nltk isnt - i was wondering however, if there might be a way around this somehow ? is there a way i can somehow still distribute the task in a self-contained 'package' of some sort? Thanks for your hel

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• Should I worry about circular references in Python?

  - by bodacydo

  Suppose I have code that maintains parent/children structure. In such a structure I get circular references, where child points to parent and parent points to child. Should I worry about them? I'm using Python 2.5. I am concerned that they will not be garbage collected and the application will eventually consume all memory. Thanks, Boda Cydo.

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• Python: UnicodeEncodeError when reading from stdin

  - by hansfbaier

  When running a Python program that reads from stdin, I get the following error: UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 320: ordinal not in range(128) How can I fix it?

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• Python's IDLE for Java

  - by Narcolapser

  Question: IS there and IDE like python's IDLE for other languages? specifically I'd like one for java, but any programing just feels so much nicer with a debug system like IDLE's.

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• Fastest python/C++ multimedia library

  - by Matthew Mitchell

  I'm using pyglet for my OpenGL based game but is it the fastest library out there which has a python wrapper? I could create a C++ extension and use any C++ multimedia library. Are there any C++ libraries that are worth investing time into or is it not worth the extra work? Thank you.

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• Can't import obj in Python on OS X 10.6.3 Snow Leopard - libiconv.2.dylib?

  - by James

  on OS X 10.6.3 Snow Leopard % python Python 2.6.1 (r261:67515, Feb 11 2010, 00:51:29) [GCC 4.2.1 (Apple Inc. build 5646)] on darwin Type "help", "copyright", "credits" or "license" for more information. import objc Traceback (most recent call last): File "", line 1, in File "/Library/Python/2.6/site-packages/pyobjc_core-2.2-py2.6-macosx-10.6-universal.egg/objc/__init__.py", line 22, in _update() File "/Library/Python/2.6/site-packages/pyobjc_core-2.2-py2.6-macosx-10.6-universal.egg/objc/__init__.py", line 19, in _update import _objc ImportError: dlopen(/Library/Python/2.6/site-packages/pyobjc_core-2.2-py2.6-macosx-10.6-universal.egg/objc/_objc.so, 2): Library not loaded: /opt/local/lib/libiconv.2.dylib Referenced from: /Library/Python/2.6/site-packages/pyobjc_core-2.2-py2.6-macosx-10.6-universal.egg/objc/_objc.so Reason: Incompatible library version: _objc.so requires version 8.0.0 or later, but libiconv.2.dylib provides version 7.0.0 -- what do I need to do?

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• random.randint(1,n) in Python

  - by Arkapravo

  Most of us know that the command random.randint(1,n) in Python (2.X.X) would generate a number in random (pseudo-random) between 1 and n. I am interested in knowing what is the upper limit for n ?

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• Easiest ways to generate graphs from Python?

  - by Noah Weiss

  I'm using Python to process CSV files filled with data that I want to run calculations on, and then graph. I'm looking for a library to use that I can send processed CSV information to, or a dict of some sort, and then choose different graphing styles with. Does anyone have any recommendations?

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