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Is errno thread-safe?
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Yes, it is thread safe. On Linux, the global errno variable is thread-specific. POSIX requires that errno be threadsafe.
See http://www.unix.org/whitepapers/reentrant.html
In POSIX.1, errno is defined as an
external global variable. But this
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Check if Python Package is installed
What's a good way to check if a package is installed while within a Python script? I know it's easy from the interpreter, but I need to do it within a script.
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how to concatenate two dictionaries to create a new one in Python? [duplicate]
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Slowest and doesn't work in Python3: concatenate the items and call dict on the resulting list:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9}; d3={10:8,13:22}' \
'd4 = dict(d1.items() + d2.items() + d3.items())'
100000 loops, best of 3: 4.93 usec pe...
Installing PDO driver on MySQL Linux server
...047 I guess you are on a windows system. I took the config excample from a linux system. But great that you shared your experience!
– Tobias Gaertner
Dec 12 '16 at 10:46
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Run function from the command line
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With the -c (command) argument (assuming your file is named foo.py):
$ python -c 'import foo; print foo.hello()'
Alternatively, if you don't care about namespace pollution:
$ python -c 'from foo import *; print hello()'
And the middle ground:
$ python -c 'from foo import hello; print hello...
What is the naming convention in Python for variable and function names?
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See Python PEP 8: Function and Variable Names:
Function names should be lowercase, with words separated by underscores as necessary to improve readability.
Variable names follow the same convention as function names.
mixedCase i...
Convert PEM to PPK file format
... Keys
Overview
vCloud Express now has the ability to create SSH Keys for Linux servers. This function will allow the user to create multiple custom keys by selecting the "My Account/Key Management" option. Once the key has been created the user will be required to select the desired SSH Key during...
Disable output buffering
Is output buffering enabled by default in Python's interpreter for sys.stdout ?
16 Answers
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Stripping everything but alphanumeric chars from a string in Python
...the best way to strip all non alphanumeric characters from a string, using Python?
11 Answers
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Python's equivalent of && (logical-and) in an if-statement
...rator precedence (which you can learn about here: ibiblio.org/g2swap/byteofpython/read/operator-precedence.html)
– ChristopheD
Apr 2 '15 at 21:51
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