Code changes from Python 2.6 to 3.x

Question

I am trying to get pywbem working in Python 3.2 (it works fine in 2.6) but the build fails on this part of code in mof_compiler.py:

  File \"pywbem-0.7.0\\mof_co         


        

Answer 1

That's not a macro, it's a function definition, and in Python 3 the print statement is now a function. So do print(s) instead.

The list of changes between Python 2 and Python 3 is here: http://docs.python.org/release/3.0.1/whatsnew/3.0.html It's not so easy to read, but I don't know if there is a better one online (although books exist).

If you are going to use Python 3, you would probably do good to get a Python 3 book. There are a couple of them out now. Or at least refer to the Python 3 documentation: http://docs.python.org/release/3.2/ It has a decent tutorial.

Answer 2

Sorry for answering an old question, but I just recently wanted to get PyWBEM running under Python 3, so I forked it, made the required changes, and removed a Python 2.x dependency (M2Crypto) from it for the 3.x series. Here's the source from GitHub:

https://github.com/deejross/python3-pywbem

Quick note, this supports Python 2.6, 2.7, and 3.4+

Answer 3

One of the most visible changes in python 3 is print is no longer a statement, but is a function, so you have to use parenthesis for calling that function. print(s)

Also, if you have your Python2 code, just use 2to3 which can do a source to source translation of your python2 to python3, which can fix most of the syntax level changes for you like the above problems. 2to3 is installed with python3 binary.