Failing to install matplotlib with python 3

Alan,

This mailing list is obsolete; please use matplotlib-users at python.org.

Your traceback looks vaguely familiar as something that has come up
before, but I don't have any more recollection than that. Suggestions:

1) Install your python environment the easy way via anaconda or
miniconda: https://www.continuum.io/downloads

2) If you are *sure* you don't want to do it that way, make sure you
have the most recent version of pip.

3) Likewise, install the most recent matplotlib. See attached message.

Eric

Hi there,

I am not the admin so I have installed my own python 3.5.1 and I am
using pip3 to install all modules I need. I got all but matplotlib :frowning:

pip3 install -U matplotlib

                          Collecting matplotlib
  Using cached matplotlib-1.5.1.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-6eka4_fr/matplotlib/setup.py", line 167, in
<module>
        result = package.check()
      File "/tmp/pip-build-6eka4_fr/matplotlib/setupext.py", line 980,
in check
        min_version='1.2', version=version)
      File "/tmp/pip-build-6eka4_fr/matplotlib/setupext.py", line 459,
in _check_for_pkg_config
        if (not is_min_version(version, min_version)):
      File "/tmp/pip-build-6eka4_fr/matplotlib/setupext.py", line 179,
in is_min_version
        return found_version >= expected_version
      File "/sw/arch/Test2/lib/python3.5/distutils/version.py", line 70,
in __ge__
        c = self._cmp(other)
      File "/sw/arch/Test2/lib/python3.5/distutils/version.py", line
337, in _cmp
        if self.version < other.version:
    TypeError: unorderable types: str() < int()

============================================================================
    Edit setup.cfg to change the build options

    BUILDING MATPLOTLIB
                matplotlib: yes [1.5.1]
                    python: yes [3.5.1 (default, Jun 16 2016, 11:03:02)
[GCC
                            4.4.7 20120313 (Red Hat 4.4.7-11)]]
                  platform: yes [linux]

    REQUIRED DEPENDENCIES AND EXTENSIONS
                     numpy: yes [version 1.11.0]
                  dateutil: yes [using dateutil version 2.5.3]
                      pytz: yes [using pytz version 2016.4]
                    cycler: yes [using cycler version 0.10.0]
                   tornado: yes [using tornado version 4.3]
                 pyparsing: yes [using pyparsing version 2.1.5]
                    libagg: yes [pkg-config information for 'libagg'
could not
                            be found. Using local copy.]
                  freetype: yes [version unknown]

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in
/tmp/pip-build-6eka4_fr/matplotlib/

What am I missing here please?

Thanks,

Alan

PS. btw, with python 2.7.11 all went fine.

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On 2016/06/16 6:07 AM, Alan wrote:
From: Matthew Brett <matthew.brett@gmail.com>
Subject: Re: [Matplotlib-devel] REL: v1.5.2rc2
Date: Mon, 30 May 2016 18:28:51 -0700
Size: 7949
URL: <http://mail.python.org/pipermail/matplotlib-users/attachments/20160616/c49d5c4a/attachment-0001.mht>