Make "pypack.py pypack.py" possible

Author: techtonik

README.md

@@ -4,6 +4,7 @@ Quickly pack .py module into source distribution.
 
 * no `setup.py` is needed
 * resulting `.zip` file is **executable**
+ (make sure there is main() function)
 
 ##### Usage
 

pypack.py

@@ -15,6 +15,9 @@
 Public domain work by:
  anatoly techtonik <techtonik@gmail.com>
 """
+
+__version__ = '0.1'
+
 import os
 import sys
 
@@ -113,7 +116,7 @@ def lookup(match):
 )
 """
 
-if __name__ == '__main__':
+def main():
  if not sys.argv[1:]:
  sys.exit("usage: pack.py <module.py>")
 
@@ -147,3 +150,5 @@ def lookup(match):
  zf.writestr('PKG-INFO', '')
  zf.close()
 
+if __name__ == '__main__':
+ main()