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Manually raising (throwing) an exception in Python
How can I raise an exception in Python so that it can later be caught via an except block?
8 Answers
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not None test in Python [duplicate]
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if val is not None:
# ...
is the Pythonic idiom for testing that a variable is not set to None. This idiom has particular uses in the case of declaring keyword functions with default parameters. is tests identity in Python. Because there is one and only one ...
Why are Python lambdas useful? [closed]
I'm trying to figure out Python lambdas. Is lambda one of those "interesting" language items that in real life should be forgotten?
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Is it possible to break a long line to multiple lines in Python [duplicate]
Just like C, you can break a long line into multiple short lines. But in Python , if I do this, there will be an indent error... Is it possible?
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How to save an image locally using Python whose URL address I already know?
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Python 2
Here is a more straightforward way if all you want to do is save it as a file:
import urllib
urllib.urlretrieve("http://www.digimouth.com/news/media/2011/09/google-logo.jpg", "local-filename.jpg")
The second argume...
Is there a way to create multiline comments in Python?
I have recently started studying Python , but I couldn't find how to implement multi-line comments. Most languages have block comment symbols like
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Where to find Java JDK Source Code? [closed]
...in the Java API does. So I want the JDK Source Code.
Before I re-installed Linux I had the src.zip package with all the official source code in it. I just had to tell Eclipse where this file is and I could see the code. But now I don't have the file anymore...
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Does Python support short-circuiting?
Does Python support short-circuiting in boolean expressions?
3 Answers
3
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Relative imports in Python 3
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myothermodule.py
...with a mymodule.py like this...
#!/usr/bin/env python3
# Exported function
def as_int(a):
return int(a)
# Test function for module
def _test():
assert as_int('1') == 1
if __name__ == '__main__':
_test()
...a myothermodule.py like this...
#!/usr/bin/env...
rsync error: failed to set times on “/foo/bar”: Operation not permitted
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Funny thing is I'm syncing ext3 to ext3 both OSes are linux. I've never had to use this switch before. -O did the trick, but I wish I didn't have to use it.
– d-_-b
Dec 14 '10 at 8:48
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