How to I get Python 2.x and 3.x to co-exist? [duplicate]

Question

I'm new to programming and thought Python would be a good language to learn. Most of the tutorials I found were 2.7 based so I started to learn using that version. I've recently found a tkinter tutorial that I'd like to try out but I'm having a problem. If I run a script it will use Python 2.7 which contains Tkinter and not tkinter.

This problem made me think, how can I get my two versions to co-exist so I can program in both 2.x and 3.x?

Answer 1

I'm not sure I understand your question, but I'll take a shot. I'm also assuming you're on Windows.

It's simple -- just install both. They will install to different directories, create different start menu folders, etc. I'd also reccomend PyWin32 for the PythonWin editor installed in both 2.7 and 3.2,

• http://sourceforge.net/projects/pywin32/files/pywin32/Build216/pywin32-216.1.win32-py3.2.exe/download &
• http://sourceforge.net/projects/pywin32/files/pywin32/Build216/pywin32-216.win32-py2.7.exe/download

If you mean how do you write one script that works with either Python 2 or Python 3, look at http://docs.python.org/library/2to3.html

Answer 2

wget  <python download url>
tar xfvz Python-X.Y.Z.tar.gz
cd Python-X.Y.Z
configure --prefix=/path/to/python-x.y.z
make install