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• Matplotlib animation won't save

  17 décembre 2014, par abe678

  I am trying to learn how to create matplotlib animations by using Jake Vanderplas’s basic example, but I’m having trouble getting the figure to save. I installed ffmpeg on my Mac via homebrew.

  The only changes that I have made are to add :

  import matplotlib
  
  matplotlib.use('TKAgg')

  When I run this script I receive the following error :

  anim.save('basic_animation.mp4', fps=30, extra_args=['-vcodec', 'libx264'])
  
  TypeError: save() got an unexpected keyword argument 'extra_args'

  Based on the many other similar questions, I’ve tried setting the ffmpeg path with

  plt.rcParams['animation.ffmpeg_path']

  but that also gives me an error :

  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/matplotlib/__init__.py", line 660, in __setitem__
  
    See rcParams.keys() for a list of valid parameters.' % (key,))
  
  KeyError: 'animation.ffmpeg_path is not a valid rc parameter.See rcParams.keys() for a list of valid parameters.'

  After removing the rcParams setting, I also tried adjusting the save command to avoid the aforementioned TypeError :

  try:
  
      anim.save('basic_animation.mp4', fps=30, extra_args=['-vcodec', 'libx264'])
  
  except TypeError:
  
      anim.save('basic_animation.mp4', fps=30)

  This runs with no error, but the mp4 file is not created. I have read over every thread and tried every solution I can find, but nothing changes. The plt.show() call works just fine. Can anyone please point me in the right direction ? Thanks !

  Update : I’m using matplotlib version 1.1.1

• Piwik IRC Meetup on Tuesday

  10 février 2014, par Fabian Becker — Community, Development

  With the release of Piwik 2.0 and the Piwik Marketplace we are focusing on the community aspect of Piwik Development. In order to give users and developers a chance to get involved in Piwik we decided to have IRC meetups every two weeks, where we discuss current and future plans of Piwik development.

  Why should I join ?

  This is the chance for everyone to directly talk to developers and discuss issues and feature ideas. It is also good if you want to get involved in development and pick up smaller features to get to know the code base.

  Next Piwik meetup

  • Date : Tuesday February 11th, 7.30pm UTC
  • Duration : 30min
  • IRC #piwik channel (irc.freenode.net)

  Topics are :

  • 2.1 release (closed tickets)
  • open tickets for Piwik 2.2

  To join the chat, you can use the website : http://webchat.freenode.net/ (or join with your IRC client of choice) – See also what will be the time in your country at 7.30pm UTC. You will find us in the Freenode channel #piwik.

• Piwik IRC Meetup on Tuesday

  10 février 2014, par Fabian Becker — Community, Development

  With the release of Piwik 2.0 and the Piwik Marketplace we are focusing on the community aspect of Piwik Development. In order to give users and developers a chance to get involved in Piwik we decided to have IRC meetups every two weeks, where we discuss current and future plans of Piwik development.

  Why should I join ?

  This is the chance for everyone to directly talk to developers and discuss issues and feature ideas. It is also good if you want to get involved in development and pick up smaller features to get to know the code base.

  Next Piwik meetup

  • Date : Tuesday February 11th, 7.30pm UTC
  • Duration : 30min
  • IRC #piwik channel (irc.freenode.net)

  Topics are :

  • 2.1 release (closed tickets)
  • open tickets for Piwik 2.2

  To join the chat, you can use the website : http://webchat.freenode.net/ (or join with your IRC client of choice) – See also what will be the time in your country at 7.30pm UTC. You will find us in the Freenode channel #piwik.