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Get path of executable
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There is no cross platform way that I know.
For Linux: readlink /proc/self/exe
Windows: GetModuleFileName
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How do I compare version numbers in Python?
... PEP 440 versions as “not strict” and therefore doesn’t match modern Python’s notion of what a valid version is.
As distutils.version is undocumented, here's the relevant docstrings.
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Replace all non-alphanumeric characters in a string
... same but allows the underscore as a word character (don't know why): docs.python.org/3.6/library/re.html#index-32
– JHS
Dec 23 '18 at 1:32
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What is the difference between YAML and JSON?
... YAML can allow an attacker to execute arbitrary code.
Observations:
Python programmers are generally big fans of YAML, because of the use of indentation, rather than bracketed syntax, to indicate levels.
Many programmers consider the attachment of "meaning" to indentation a poor choice.
If...
More elegant way of declaring multiple variables at the same time
...t least accepting of this idiom, but I suspect that some may consider it Unpythonic. </disclaimer>
Yet another approach, which is likely the most intuitive if you will be using this pattern frequently, is to define your data as a list of flag values (True, False) mapped to flag names (sing...
Find duplicate lines in a file and count how many time each line was duplicated?
...u can use the more verbose --count flag too with the GNU version, e.g., on Linux:
sort <file> | uniq --count
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DistutilsOptionError: must supply either home or prefix/exec-prefix — not both
I've been usually installed python packages through pip.
8 Answers
8
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How to use the C socket API in C++ on z/OS
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I've had no trouble using the BSD sockets API in C++, in GNU/Linux. Here's the sample program I used:
#include <sys/socket.h>
int
main()
{
return AF_INET;
}
So my take on this is that z/OS is probably the complicating factor here, however, because I've never used z/OS bef...
Python creating a dictionary of lists
...r and more modern choice. setdefault is still useful in older versions of Python (prior to 2.5).
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What do (lambda) function closures capture?
Recently I started playing around with Python and I came around something peculiar in the way closures work. Consider the following code:
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