python 3.3 import errors

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When trying to install from the mercurial tip (changeset 36:3c94a3a1ebe1 from 
September 21), I get the following error:

     Traceback (most recent call last):
      File "setup.py", line 5, in <module>
        import progressbar
      File "/usr/local/src/python-progressbar/progressbar/__init__.py", line 47, in <module>
        from compat import *
    ImportError: No module named 'compat'

This is because the imports aren't relative to the current package. Changing 
the imports in __init__.py to 

     from .compat import *

and so on works, as would `from progressbar.compat`.

I also needed to change `import widgets` to `from . import widgets` in 
`progressbar.py`. Then everything worked.

Also note that the version in pypi (2.3-dev) still has the `__slots__` problem 
that was fixed back in September - it'd be nice to release a new version with 
these two problems fixed, so `pip install progressbar` works.

Original issue reported on code.google.com by dou...@gmail.com on 17 Dec 2012 at 1:31

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I guess I should change it to use explicit relative imports. The only problem 
is that would drop support for python 2.4. Not sure if there are people using 
the library in python 2.4 yet.

Original comment by nilton.v...@gmail.com on 22 Dec 2012 at 9:20

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I'd much rather see support for Python 3.3 than 2.4. Perhaps a good compromise 
is to increment the version to 3.0 and support Python 3.x, keep 2.x as the 
Python 2.x series.

Original comment by bradley....@gmail.com on 22 Dec 2012 at 9:41

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I've tested the change and Python 3.3 seems happy with it: 
https://github.com/bradleyayers/python-progressbar/commit/c25e56619ca625344b7101
6c9dd7a7bbd5a67285

Original comment by bradley....@gmail.com on 22 Dec 2012 at 9:44

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Can you please submit the Python 3.3 compatible library to PyPi?

Original comment by sync.mar...@googlemail.com on 1 Jun 2013 at 6:00

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Yes please !

Original comment by james...@gmail.com on 25 Sep 2013 at 12:38

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Yes-yes please

Original comment by koukopoulos on 10 Oct 2013 at 9:22

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I uploaded to PyPi a version of python-progressbar that should work on Python 
3.3. You can get it by running:

pip install progressbar33

Original comment by german.g...@gmail.com on 29 Aug 2014 at 9:03

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I'll just note - as a Python 3.4 user I was surprised to see that `pip install 
progressbar` failed with an odd error (which lead me here). I have it working 
with `pip install progressbar33`. Looking at the comment about Python 2.4 
support - I'll note that Python 2.4's support was withdrawn in 2009, so it has 
been unsupported for 6 years now. 
Python 2.7 itself is unsupported in 4.5 years time. Python 3.4+ is the future 
(and, well, the current for many of us). I'd strongly vote for dropping 2.4 
support and letting 3.4 users enjoy this fine library without hunting through 
bug reports.

Original comment by ianozsv...@gmail.com on 4 Jun 2015 at 9:12