I have a rather simple Python script that contains a function call like f(var, other_var) i.e. a function that gets several parameters. All those parameters can be accessed within f and have values. When I instead call cProfile.run('f(var, other_var)') it fails with the error message: NameError: "name 'var' is not defined" Python ...
Disclaimer: Sensible semantics do dictate that the LHS of as behaving differently depending on the RHS lexeme is ludicrous. But I am curious nontheless. Hi guys, Simple question, but one that somone may be able to answer better than my hack. I'm currently messing with metaclasses etc and working out a comfortable syntax for some th...
This relates to a project to convert a 2-way ANOVA program in SAS to Python. I pretty much started trying to learn the language Thursday, so I know I have a lot of room for improvement. If I'm missing something blatantly obvious, by all means, let me know. I haven't got Sage up and running yet, nor numpy, so right now, this is all quit...
Python 2.6.6 was released on August 24, 2010. However, there isn't a Mac OS X Installer Disk Image. Is there a Mac OS X Installer Disk Image available for Python 2.6.6? ...
Hello, I am writing a simple commandline script that uses raw_input, but it doesn't seem to work. This code: print "Hello!" raw_input("") Produces this error: Traceback (most recent call last): File "<pyshell#6>", line 1, in <module> raw_input("") TypeError: 'str' object is not callable I have never encountered this error before,...
I am using this simple example to understand Python's getattr function: In [25]: class Foo: ....: def __getattr__(self, name): ....: print name ....: ....: In [26]: f = Foo() In [27]: f.bar bar bar Why is bar printed twice? Using Python 2.6.5. ...
I am writing a program which reads input from a file called 'votes.txt'. It reads in some line of information, each of which is a 'vote' with parties ordered by preference. The program needs to take this data, and output the winner of the election. My Code is as follows: # Define the count_votes() function def count_votes(to_count): ...
Hi, I have a programming question, as follows, for which my solution does not produce the desired output This particle simulator operates in a universe with different laws of physics to ours. Each particle has a position (x, y), velocity (vx, vy) and an acceleration (ax, ay). Every particle exerts an attractive force on every other ...
Here's what I've got: from sqlalchemy import * from sqlalchemy.orm import * from web.models.card import * connectionString = "postgresql://www:www@localhost/prod" databaseEngine = create_engine(connectionString) sessionFactory = sessionmaker(autoflush = True, autocommit = False, bind = databaseEngine) session = sessionFactory() CardsCo...
I've come across a bug in Python (at least in 2.6.1) for the bytearray.fromhex function. This is what happens if you try the example from the docstring: >>> bytearray.fromhex('B9 01EF') Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: fromhex() argument 1 must be unicode, not str This example works f...
From wikipedia I need to access outer functions variables in a similar manner as using the 'nonlocal' keyword from python 3.x. Is there some way to do that in python 2.6? (Not necessarily using the nonlocal keyword) ...
I've got this function, which I modified from material in chapter 1 of the online NLTK book. It's been very useful to me but, despite reading the chapter on Unicode, I feel just as lost as before. def openbookreturnvocab(book): fileopen = open(book) rawness = fileopen.read() tokens = nltk.wordpunct_tokenize(rawness) nltk...
I have a simple script where I am fetching an HTML page, passing it to BeautifulSoup to remove all script and style tags, then I want to pass the HTML result to another method. Is there an easy way to do this? Skimming the BeautifulSoup.py, I haven't seen it yet. soup = BeautifulSoup(html) for script in soup("script"): soup.script.e...
I've written my code to target Python 2.6.5, but I now need to run it on a cluster that only has 2.5.4, something that wasn't on the horizon when I wrote the code. Backporting the code to 2.5 shouldn't be too hard, but I was wondering if there was either a cheat-sheet or an automated tool that would help me with this. For some things, li...
I'm a bit rusty in Python and am just looking for help implementing an example function to count words (this is just a sample target for a scons script that doesn't do anything "real"): def countWords(target, source, env): if (len(target) == 1 and len(source) == 1): fin = open(str(source[0]), 'r') # do something with "f.read()...
The following code is from the python 2.6 manual. from multiprocessing import Process import os def info(title): print(title) print('module name:', 'me') print('parent process:', os.getppid()) print('process id:', os.getpid()) def f(name): info('function f') print('hello', name) if __name__ == '__main__': ...
There's this script called svnmerge.py that I'm trying to tweak and optimize a bit. I'm completely new to Python though, so it's not easy. The current problem seems to be related to a class called RevisionSet in the script. In essence what it does is create a large hashtable(?) of integer-keyed boolean values. In the worst case - one fo...
Hi, I have had to change from python 2.7 to 2.6. I've been using a deque with the maxlen property and have been checking what the maxlen is. Apparently you can use maxlen in python 2.6, but in 2.6 deques do not have a maxlen attribute. What is the cleanest way to check what the maxlen of a deque is in python 2.6? In 2.7: from collectio...
Disclaimer: I'm looking for a Python 2.6 solution, if there is one. I'm looking for a function that returns a single value when passed a single value, or that returns a sequence when passed multiple values: >>> a = foo(1) 2 >>> b, c = foo(2, 5) >>> b 3 >>> c 6 To be clear, this is in an effort to make some function calls simply look ...