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Difference between os.getenv and os.environ.get
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From the linked related thread: "the main reason to use os.getenv() [...] is when you want to have a default value returned when an environment variable name isn't found in os.environ's keys rather than have a KeyError or wha...
Getting file size in Python? [duplicate]
...enericpath.py').st_size
Or use Path(path).stat().st_size (Python 3.4+)
from pathlib import Path
Path('C:\\Python27\\Lib\\genericpath.py').stat().st_size
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mkdir -p functionality in Python [duplicate]
Is there a way to get functionality similar to mkdir -p on the shell from within Python. I am looking for a solution other than a system call. I am sure the code is less than 20 lines, and I am wondering if someone has already written it?
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How is Pythons glob.glob ordered?
...e command "find" in Unix, it just dumps the entries in the order they come from the data structure used by the underlying filesystem. You should not make any assumptions about its ordering, even if you would see that files seem to appear in creation order.
– Raúl Salinas-Mont...
How to get an absolute file path in Python
...irectory ".." element) and return a string. This is just a string computed from the current directory; any correlation to an actual file is accidental, it seems. Try os.path.abspath("/wow/junk/../blha/hooey"). It works.
– Mike S
Sep 12 '18 at 2:01
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How to get all of the immediate subdirectories in Python
...ything that needs to find more than one path name. It makes it very easy:
from glob import glob
paths = glob('*/')
Note that glob will return the directory with the final slash (as unix would) while most path based solutions will omit the final slash.
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Run a Python script from another Python script, passing in arguments [duplicate]
I want to run a Python script from another Python script. I want to pass variables like I would using the command line.
6 A...
How to use “/” (directory separator) in both Linux and Windows in Python?
... you are fortunate enough to be running Python 3.4+, you can use pathlib:
from pathlib import Path
path = Path(dir, subdir, filename) # returns a path of the system's path flavour
or, equivalently,
path = Path(dir) / subdir / filename
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Non-alphanumeric list order from os.listdir()
...subdirectories: run01, run02, ... run19, run20, and then I generate a list from the following command:
12 Answers
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Select random lines from a file
...e point is you can keep some lines in memory with shuffle to do the random selection of what to output. Sort is going to sort the entire file, regardless of what your needs are.
– Rubens
Sep 25 '14 at 2:01
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