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Checking a Python module version at runtime
Many third-party Python modules have an attribute which holds the version information for the module (usually something like module.VERSION or module.__version__ ), however some do not.
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Catch multiple exceptions in one line (except block)
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From Python Documentation:
An except clause may name multiple exceptions as a parenthesized tuple, for example
except (IDontLikeYouException, YouAreBeingMeanException) as e:
pass
Or, for Python 2 only:
except (IDontLi...
Windows path in Python
...the correct configuration for your OS:
os.path.join(mydir, myfile)
From python 3.4 you can also use the pathlib module. This is equivelent to the above:
pathlib.Path(mydir, myfile)
or
pathlib.Path(mydir) / myfile
sha...
Are static class variables possible in Python?
Is it possible to have static class variables or methods in Python? What syntax is required to do this?
21 Answers
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How can I multiply all items in a list together with Python?
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Python 3: use functools.reduce:
>>> from functools import reduce
>>> reduce(lambda x, y: x*y, [1,2,3,4,5,6])
720
Python 2: use reduce:
>>> reduce(lambda x, y: x*y, [1,2,3,4,5,6])
720
For compa...
How do I change the working directory in Python?
... the current working directory in the parent process. This is true of the Python interpreter as well. You cannot use os.chdir() to change the CWD of the calling process.
share
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improve this answe...
Print in one line dynamically
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Change print item to:
print item, in Python 2.7
print(item, end=" ") in Python 3
If you want to print the data dynamically use following syntax:
print(item, sep=' ', end='', flush=True) in Python 3
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Vertical (rotated) label in Android
... few places), while drawing it rotated.
It works fine also when used in an xml layout.
EDIT:
posting another version, above has problems with animations. This new version works better, but loses some TextView features, such as marquee and similar specialties.
public class VerticalTextView extends...
How to make an ImageView with rounded corners?
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in your / example / res / layout / rounded_item.xml why do you specify an image src when all your sources are hardcoded ? Nice demo, just way overkill.
– Someone Somewhere
Mar 21 '13 at 0:29
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How to use PyCharm to debug Scrapy projects
I am working on Scrapy 0.20 with Python 2.7. I found PyCharm has a good Python debugger. I want to test my Scrapy spiders using it. Anyone knows how to do that please?
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