python - Why does pip install matplotlib version 0.91.1 when PyPi shows version 1.0.0?

Question

Update Oct 15, 2012

PyPi is now showing matplotlib at 1.1.0 so this issue is resolved. Install matplotlib via:

pip install matplotlib

Outdated Information Below

PyPi shows matplotlib 1.0.0. However, when I install matplotlib via pip into a virtualenv, version 0.91.1 is installed.

• Why the difference in versions?
• Is there a way to pip install matplotlib 1.0.0?

Research

It appears that matplotlib's DOAP record on PyPi is pointing to the correct version. Below is the DOAP record for reference:

<?xml version="1.0" encoding="UTF-8" ?>
<rdf:RDF xmlns="http://usefulinc.com/ns/doap#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"><Project><name>matplotlib</name>
<shortdesc>Python plotting package</shortdesc>
<description>matplotlib strives to produce publication quality 2D graphics
      for interactive graphing, scientific publishing, user interface
      development and web application servers targeting multiple user
      interfaces and hardcopy output formats.  There is a 'pylab' mode
      which emulates matlab graphics</description>
<download-page>https://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-1.0</download-page>
<homepage rdf:resource="http://matplotlib.sourceforge.net" />
<maintainer><foaf:Person><foaf:name>John D. Hunter</foaf:name>
<foaf:mbox_sha1sum>4b099b4a7f50a1f39642ce59c2053c00d4de6416</foaf:mbox_sha1sum></foaf:Person></maintainer>
<release><Version><revision>1.0.0</revision></Version></release>
</Project></rdf:RDF>

Configuration

• OS: Mac OS X 10.6.6
• Python 2.7
• virtualenv 1.5.1
• pip 0.8.1

Update 24-Aug-10 7:09 AM

Installing from the PyPi mirror also installs version 0.91.1:

$ pip install -i http://d.pypi.python.org/simple matplotlib

Update January 14, 2011 4:54 PM

Even though matplotlib 1.0.1 has been release, this issue still persists.

Answer 1

I've experienced the same problem. I have no idea why it happens, but I do have a fix; use the -f option in pip to tell it where to find the matplotlib sources. (This works in requirements.txt as well).

pip install -f http://downloads.sourceforge.net/project/matplotlib/matplotlib/matplotlib-1.0/matplotlib-1.0.0.tar.gz matplotlib