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Search found 19662 results on 787 pages for 'python module'.

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• python operation not permitted (graphtecprint)

  - by eyecreate

  I'm running a python program. When it get's to these lines: f = open("/dev/bus/usb/007/005", "r") x = fcntl.ioctl(f.fileno(), 0x84005001, '\x00' * 256) It fails saying: IOError: [Errno 1] Operation not permitted What could be causing this problem?

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• writing python to extract data from a file

  - by user297003

  Hi i am new to python i am trying to extract the text between that has specific text file ---- data1 data1 data1 extractme ---- data2 data2 data2 ---- data3 data3 extractme ---- and then dump it to text file so that ---- data1 data1 data1 extractme --- data3 data3 extractme --- thanks for the help data1 data1

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• how to use @ in python.. and the @property

  - by zjm1126

  this is my code: def a(): print 'sss' @a() def b(): print 'aaa' b() and the Traceback is: sss Traceback (most recent call last): File "D:\zjm_code\a.py", line 8, in <module> @a() TypeError: 'NoneType' object is not callable so how to use the '@' thanks updated class a: @property def b(x): print 'sss' aa=a() print aa.b it print : sss None how to use @property thanks

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• Control VLC from Python in Windows

  - by Sridhar Ratnakumar

  I'm running VLC (a media player) in Windows 7. Is there way to control (as in: play, pause, set volume) a running instance of VLC from Python?

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• has any simply way to delete a value in list of python

  - by zjm1126

  a=[1,2,3,4] b=a.index(6) del a[b] print a it show error: Traceback (most recent call last): File "D:\zjm_code\a.py", line 6, in <module> b=a.index(6) ValueError: list.index(x): x not in list so i have to do this : a=[1,2,3,4] try: b=a.index(6) del a[b] except: pass print a but this is not simple,has any simply way ? thanks

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• Documentation String Stub, Python

  - by Andres Orozco

  Well i'm learning Python cuz' i think is an awesome and powerful language like C++, perl or C# but is really really easy at same time. I'm using JetBrains' Pycharm and when i define a function it ask me to add a "Documentation String Stub" when i click yes it adds somethin like this: """ """ so the full code of the function is something like this: def otherFunction(h, w): """ """ hello = h world = w full_word = h + ' ' + w return full_word I would like to know what these (""" """) symbols means, Thanks. Ps.Data: Sorry for my bad english :D

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• Regular expression that finds and replaces non-ascii characters with Python

  - by prosseek

  I need to change some characters that are not ASCII to '_'. For example, Tannh‰user - Tann_huser If I use regular expression with Python, how can I do this? Is there better way to do this not using RE?

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• Starting python debugger automatically on error

  - by jeremy

  This is a question I have wondered about for quite some time, yet I have never found a suitable solution. If I run a script and I come across, let's say an IndexError, python prints the line, location and quick description of the error and exits. Is it possible to automatically start pdb when an error is encountered? I am not against having an extra import statement at the top of the file, nor a few extra lines of code.

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• DTD parser for Django/Python

  - by Ignacio Vazquez-Abrams

  Is there a tool that can generate Django models from a DTD? Failing that, are there any decent DTD parsers available for Python?

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• Bipartite matching in Python

  - by vailen

  Does anybody know any module in Python that computes the best bipartite matching? I have tried the following two: munkres hungarian However, in my case, I have to deal with non-complete graph (i.e., there might not be an edge between two nodes), and therefore, there might not be a match if the node has no edge. The above two packages seem not to be able to deal with this. Any advice?

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• Creating a sliding frame containing widgets in tkinter in python

  - by Buki

  I am trying really hard to make a sliding frame containing widgets in tkinter in python. There is this frame inside a big window with different widgets. And as soon as i click on the next button on that frame the frame should slowly slide towards the left and vanish ultimately. As soon as it vanishes, i want new frame with widgets to come sliding towards right. What should i do? Anticipating your suggestions and ideas.

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• Go through a number of functions in Python

  - by Asaf

  I have an unknown number of functions in my python script (well, it is known, but not constant) that start with site_... I was wondering if there's a way to go through all of these functions in some main function that calls for them. something like: foreach function_that_has_site_ as coolfunc if coolfunc(blabla,yada) == true: return coolfunc(blabla,yada) so it would go through them all until it gets something that's true. thanks!

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• Python, concise way to test membership in collection using partial match

  - by aaa

  hello. What is the pythonic way to test if there is a tuple starting with another tuple in collection? actually, I am really after the index of match, but I can probably figure out from test example for example: c = ((0,1),(2,3)) # (0,) should match first element, (3,)should match no element I should add my python is 2.4 and/or 2.5 thanks

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• How to split line at non-printing ascii character in Python

  - by Donnied

  How can I split a line in Python at a non-printing ascii character (such as the long minus sign hex 0x97 , Octal 227)? I won't need the character itself. The information after it will be saved as a variable.

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• how to delete lowercase words from a string in python

  - by gaggina

  I'm new in python and I'm having some issues doing a simple thing. I've an array (or list as it's said in pyton) like this: list = [ 'NICE dog' , 'blue FLOWER' , 'GOOD cat' , 'YELLOW caw'] As you see each element of this array contains some words. These words is both lowercase and uppercase. How I can delete from this array each lowercase words? For example I'd like to have as result this list: list = [ 'NICE' , 'FLOWER' , 'GOOD' , 'YELLOW']

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• Cross-platform space remaining on volume using python

  - by Justin Waddell

  I need a way to determine the space remaining on a disk volume using python on linux, Windows and OS X. I'm currently parsing the output of the various system calls (df, dir) to accomplish this - is there a better way?

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• Setting up a python screen scraper that could work on Google App engine

  - by cozza

  I am looking to setup a automated screen scraper that will run on Google app engine using python. I want it to scrape the site and put the specified results into a Entity in app engine. I am looking for some directions on what to use. I have seen beautifulsoup but wonder if people could recommend anything else that could run on Google App engine.

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• Python unhash value

  - by blah01

  Hi all I am a newbie to the python. Can I unhash, or rather how can I unhash a value. I am using std hash() function. What I would like to do is to first hash a value send it somewhere and then unhash it as such: #process X hashedVal = hash(someVal) #send n receive in process Y someVal = unhash(hashedVal) #for example print it print someVal Thx in advance

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• Javascript equivalent of Python's iterkeys() dictionary method

  - by saltycrane

  In Python I can use the iterkeys() method to iterate over the keys of a dictionary. For example: mydict = {'a': [3,5,6,43,3,6,3,], 'b': [87,65,3,45,7,8], 'c': [34,57,8,9,9,2],} for k in mydict.iterkeys(): print k gives me: a c b How can I do something similar in Javascript?

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• Python: inserting double or single quotes around a string

  - by Jessy

  Im using python to access a MySQL database and im getting a unknown column in field due to quotes not being around the variable. code below: cur = x.cnx.cursor() cur.execute('insert into tempPDBcode (PDBcode) values (%s);' % (s)) rows = cur.fetchall() How do i manually insert double or single quotes around the value of s? I've trying using str() and manually concatenating quotes around s but it still doesn't work. The sql statement works fine iv double and triple check my sql query.

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• decorators in the python standard lib (@deprecated specifically)

  - by Stefano Borini

  I need to mark routines as deprecated, but apparently there's no standard library decorator for deprecation. I am aware of recipes for it and the warnings module, but my question is: why is there no standard library decorator for this (common) task ? Additional question: are there standard decorators in the standard library at all ?

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• How to implement a Mutex in Python when using Gtk with PyGTK

  - by Julian

  Hi, I have an application that starts several threads using gobject.timeout_add(delay, function) Now in my function I want to test and set on some variable, e.g. def function(self): if flag == True: flag = False doSomething() Now to make this threadsafe, I would have to lock the function using some mutex lock. Is this possible with Gtk? Or can I use the Python Lock objects from threading?

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• how to run python scripts from other script and have thier root in my root

  - by Ahmad Dwaik

  hello all i have a module "B", i want to run it from a script "C", and i want to call global variables in "B", as they wer in "C" root, another problem that is if i imported sys in "B" when i run "C" it doesnt see sys # NameError: global name 'sys' is not defined # what shall i do?

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• Customized command line parsing in Python

  - by Moshe

  I'm writing a shell for a project of mine, which by design parses commands that looks like this: COMMAND_NAME ARG1="Long Value" ARG2=123 [email protected] My problem is that Python's command line parsing libraries (getopt and optparse) forces me to use '-' or '--' in front of the arguments. This behavior doesn't match my requirements. Any ideas how can this be solved? Any existing library for this?

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• Decompose a Python string into its characters

  - by PoorLuzer

  I want to break a Python string into its characters. sequenceOfAlphabets = list( string.uppercase ) works. However, why does not sequenceOfAlphabets = re.split( '.', string.uppercase ) work? All I get are empty, albeit expected count of elements

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