This is a handy way to package a group of python modules into a single compressed self-extracting python executable script. This works on UNIX and Cygwin with Python 2.3 Final or later.
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Copy to clipboard1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | #!/bin/sh
# This is a self-extracting executable.
# Execute this like any normal executable.
# You may need to "chmod a+x" this file.
# This is a binary ZIP file with a Python loader header.
#
# Bourne shell loader:
PYTHON=$(which python 2>/dev/null)
if [ ! -x "$PYTHON" ] ; then
echo "Python not found!"
exit 1
fi
exec $PYTHON -c "
# Python loader:
import sys, os
if int(sys.version[0])<2:
print 'Python version 2.3 final or greater is required.'
print 'Your version is', sys.version
os._exit(1)
major = sys.version_info[0]
minor = sys.version_info[1]
releaselevel = sys.version_info[3]
if (major==2 and minor<3) or (major==2 and minor==3 and releaselevel!='final'):
print 'Python version 2.3 final or greater is required.'
print 'Your version is', sys.version
os._exit(1)
sys.path.insert(0, sys.argv[1])
del sys.argv[0:1]
import MY_SCRIPT
MY_SCRIPT.main()
" $0 $@
# Zip file:
|
Assume the following situation: * you have a script called MY_SCRIPT.py with a main() function. * your script imports a number of other modules in the local directory. * you want to distribute this script to others as a single executable script that does not require installation or unpacking of all the other modules.
Step 1. Compress your project into a ZIP file:
zip MY_SCRIPT.ZIP *.py
Step 2. Add the shell script header source to the ZIP file. Be sure to change the two references to MY_SCRIPT to the actual name of your script:
cat zip_header.sh MY_SCRIPT.ZIP > SCRIPT
Step 3. Make the SCRIPT executable.
chmod 775 SCRIPT
Step 4. Now run your self-extracting executable ./SCRIPT
This does not corrupt the ZIP file and it is a valid shell script even though it is binary. This is a wrapper, within a wrapper, within a wrapper, but it actually works and it isn't too complicated to build for most projects.
Python is able to run code inside of a ZIP file. The shell script header starts python which runs another pythin script header that loads and run the main function in your script.
make if __name__ == '__main__' work. Replace:
with:
After this change a script with the __name__ == '__main__' trick works, no need to specify a main() function.
Anything added beyond. Anything added beyond the script does not get printed to the screen why?
Like is added echo 'Hello'
Which does get printed to the screen