Windows/py: Difference between revisions
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Python Launcher | == Python Launcher == | ||
General usage: | General usage: | ||
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py -2 | py -2 | ||
py -3 | py -3 | ||
py -3.10 | |||
<pre> | <pre> | ||
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... | ... | ||
</pre> | |||
== Shebang == | |||
Shebang <ref>https://docs.python.org/3.8/using/windows.html</ref> | |||
/usr/bin/env python | |||
/usr/bin/python | |||
/usr/local/bin/python | |||
python | |||
<pre> | |||
#! /usr/bin/python -v | |||
</pre> | </pre> | ||
Revision as of 18:55, 19 June 2024
Python Launcher
General usage:
py py -2 py -3 py -3.10
Python Launcher for Windows Version 3.10.6150.1013
usage:
py [launcher-args] [python-args] [script [script-args]]
Launcher arguments:
-2 : Launch the latest Python 2.x version
-3 : Launch the latest Python 3.x version
-X.Y : Launch the specified Python version
The above all default to 64 bit if a matching 64 bit python is present.
-X.Y-32: Launch the specified 32bit Python version
-X-32 : Launch the latest 32bit Python X version
-X.Y-64: Launch the specified 64bit Python version
-X-64 : Launch the latest 64bit Python X version
-0 --list : List the available pythons
-0p --list-paths : List with paths
If no script is specified the specified interpreter is opened.
If an exact version is not given, using the latest version can be overridden by
any of the following, (in priority order):
An active virtual environment
A shebang line in the script (if present)
With -2 or -3 flag a matching PY_PYTHON2 or PY_PYTHON3 Environment variable
A PY_PYTHON Environment variable
From [defaults] in py.ini in your %LOCALAPPDATA%\py.ini
From [defaults] in py.ini beside py.exe (use `where py` to locate)
...
Shebang
Shebang [1]
/usr/bin/env python /usr/bin/python /usr/local/bin/python python
#! /usr/bin/python -v