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POHow do I get the path of the current executed file in Python?
 

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  1. POHow do I get the path of the current executed file in Python?
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    <p>This may seem like a newbie question, but it is not. Some common approaches don't work in all cases:</p> <h1>sys.argv[0]</h1> <p>This means using <code>path = os.path.abspath(os.path.dirname(sys.argv[0]))</code>, but this does not work if you are running from another Python script in another directory, and this can happen in real life.</p> <h1>__file__</h1> <p>This means using <code>path = os.path.abspath(os.path.dirname(__file__))</code>, but I found that this doesn't work:</p> <ul> <li><code>py2exe</code> doesn't have a <code>__file__</code> attribute, but there is a <a href="http://www.py2exe.org/index.cgi/WhereAmI" rel="noreferrer">workaround</a></li> <li>When you run from IDLE with <code>execute()</code> there is no <code>__file__</code> attribute</li> <li>OS X 10.6 where I get <code>NameError: global name '__file__' is not defined</code></li> </ul> <p>Related questions with incomplete answers:</p> <ul> <li><em><a href="https://stackoverflow.com/questions/1296501/python-find-path-to-file-being-run">Python - Find Path to File Being Run</a></em></li> <li><em><a href="https://stackoverflow.com/questions/1483827/python-path-to-current-file-depends-on-how-i-execute-the-program">Path to current file depends on how I execute the program</a></em></li> <li><em><a href="https://stackoverflow.com/questions/2259503/how-to-know-the-path-of-the-running-script-in-python">How to know the path of the running script in Python?</a></em></li> <li><em><a href="https://stackoverflow.com/questions/509742/python-chdir-to-dir-the-py-script-is-in">Change directory to the directory of a Python script</a></em></li> </ul> <p>I'm looking for a <strong>generic solution</strong>, one that would work in all above use cases.</p> <h3>Update</h3> <p>Here is the result of a testcase:</p> <h3>Output of python a.py (on Windows)</h3> <pre><code>a.py: __file__= a.py a.py: os.getcwd()= C:\zzz b.py: sys.argv[0]= a.py b.py: __file__= a.py b.py: os.getcwd()= C:\zzz </code></pre> <h3>a.py</h3> <pre><code>#! /usr/bin/env python import os, sys print "a.py: sys.argv[0]=", sys.argv[0] print "a.py: __file__=", __file__ print "a.py: os.getcwd()=", os.getcwd() print execfile("subdir/b.py") </code></pre> <h3>subdir/b.py</h3> <pre><code>#! /usr/bin/env python import os, sys print "b.py: sys.argv[0]=", sys.argv[0] print "b.py: __file__=", __file__ print "b.py: os.getcwd()=", os.getcwd() print </code></pre> <h3>tree</h3> <pre><code>C:. | a.py \---subdir b.py </code></pre>
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