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codecaine · 08-07-2010, 11:31 PM

Python 3 comes with a program called 2to3. This program allows you to convert your Python 2.x scripts to 3.x scripts. I convert all my scripts to 3.1 so I can run with on either 2.x or 3.x series. Examples of using 2to3 on mac or Linux.

Code:

2to3 myscript.py //This will print all the that 2to3 will change in a script without physically chaning it

2to3 -w myscript.py //This will actually write the changes to the file but also make a backup of the first script.

There are other commands you can do using 2to3 just type 2to3 --help to see a list of commands.

***Back_track*** · 09-27-2010, 12:26 AM

What are the major differences? I know that the print statement now requires parentheses and raw_input has been replaced by just input.

codecaine · 07-11-2011, 06:22 PM

Yea, must be closed in () and some minor function change in math classes etc... Instead of returning a integer it may return a float. Not to many major changes though.