A Print function for different versions of python

by Gribouillis on Dec 20th, 2008

This snippet defines a Print function which can be used with python 2.4, 2.5, 2.6 and 3.0 (for 3.0 this is just the built-in print function). It's interface is that of the python 3.0's print. It simplifies the task of writing transitional code which runs under python 2.5 and python 3.0.

Python Code Snippet (Toggle Plain Text)

# module cbprint
# (C) 2008 Gribouillis at www.daniweb.com
 
"""This module defines a Print function to use with python 2.x or 3.x.
 
Usage:
  from cbprint import Print
  Print("hello", "world")
 
It's interface is that of python 3.0's print. See
http://docs.python.org/3.0/library/functions.html?highlight=print#print
"""
__all__ = ["Print"]
import sys
try:
  Print = eval("print") # python 3.0 case
except SyntaxError:
  try:
    D = dict()
    exec("from __future__ import print_function\np=print", D)
    Print = D["p"] # 2.6 case
    del D
  except SyntaxError:
    del D
    def Print(*args, **kwd): # 2.4, 2.5, define our own Print function
      fout = kwd.get("file", sys.stdout)
      w = fout.write
      if args:
        w(str(args[0]))
        sep = kwd.get("sep", " ")
        for a in args[1:]:
          w(sep)
          w(str(a))
      w(kwd.get("end", "\n"))