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Python: Path to current file depends on how I execute the program

Answer 1

+3 A:

It's just a harmless windows quirk; you can compensate by using os.path.abspath(__file__), see the docs

Alex Martelli 2009-09-27 16:03:30

Do I use `abspath` only if I'm on Windows or do I use it regardless?

Deniz Dogan 2009-09-27 16:04:24

I'd probably use it regardless.

Jason Baker 2009-09-27 16:06:39

it's not just windows

SilentGhost 2009-09-27 16:09:28

I'd use it everywhere if you want the absolute path (instead of relative to current directory).

Alex Martelli 2009-09-27 16:14:04

@Alex, with os.path.abspath(__file__), python -m cProfile myfile.py return "C:\Python25\lib\cProfile.py" (or "/usr/lib/python2.5/cProfile.py")...

sunqiang 2009-09-27 16:42:36

@sunqiang, that's what the OP asked for, right? The absolute path to the main file (and the -m is telling Python that the main file is cProfile.py, of course).

Alex Martelli 2009-09-27 17:01:46

@Alex, yes, abspath is nice for OP's question. Just met this myself last time. The script is work but Profile it surprised me.

sunqiang 2009-09-27 17:08:13

@sunqiang, maybe you weren't aware that cProfile.main uses execfile on the foo.py you're passing on the commandline -- `run('execfile(%r)' % (sys.argv[0],), options.outfile, options.sort)` is the key statement, a few lines from the end of cProfile.py.

Alex Martelli 2009-09-27 17:32:34

@Alex, I see, now it doesn't surprised anymore, thanks for the info.

sunqiang 2009-09-27 17:50:06

Answer 2

A:

os.path.normpath(os.path.join(os.getcwd(),os.path.dirname(__file__)))

tommy 2009-09-28 08:32:20

read what `os.path.abspath` does.

SilentGhost 2009-09-28 09:01:06

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Python: Path to current file depends on how I execute the program

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