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tobias47n9e opened this issue Sep 25, 2014 · 9 comments
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Daily build fails at "import matplotlib.pyplot as plt" #3568

tobias47n9e opened this issue Sep 25, 2014 · 9 comments
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v1.4.1

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@tobias47n9e
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I currently get an error when running "import matplotlib.pyplot as plt". Can't really track down the cause.

In Python 2:

Python 2.7.6 (default, Mar 22 2014, 22:59:56) 
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib.pyplot as plt
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/pymodules/python2.7/matplotlib/pyplot.py", line 28, in <module>
    from matplotlib import style
  File "/usr/lib/pymodules/python2.7/matplotlib/style/__init__.py", line 3, in <module>
    from .core import use, context, available, library, reload_library
  File "/usr/lib/pymodules/python2.7/matplotlib/style/core.py", line 149, in <module>
    _base_library = load_base_library()
  File "/usr/lib/pymodules/python2.7/matplotlib/style/core.py", line 94, in load_base_library
    library.update(read_style_directory(BASE_LIBRARY_PATH))
  File "/usr/lib/pymodules/python2.7/matplotlib/style/core.py", line 126, in read_style_directory
    for path, name in iter_style_files(style_dir):
  File "/usr/lib/pymodules/python2.7/matplotlib/style/core.py", line 115, in iter_style_files
    for path in os.listdir(style_dir):
OSError: [Errno 2] No such file or directory: '/usr/share/matplotlib/mpl-data/stylelib'

In Python 3:

Python 3.4.0 (default, Apr 11 2014, 13:05:11) 
[GCC 4.8.2] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib.pyplot as plt
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3/dist-packages/matplotlib/pyplot.py", line 28, in <module>
    from matplotlib import style
  File "/usr/lib/python3/dist-packages/matplotlib/style/__init__.py", line 3, in <module>
    from .core import use, context, available, library, reload_library
  File "/usr/lib/python3/dist-packages/matplotlib/style/core.py", line 149, in <module>
    _base_library = load_base_library()
  File "/usr/lib/python3/dist-packages/matplotlib/style/core.py", line 94, in load_base_library
    library.update(read_style_directory(BASE_LIBRARY_PATH))
  File "/usr/lib/python3/dist-packages/matplotlib/style/core.py", line 126, in read_style_directory
    for path, name in iter_style_files(style_dir):
  File "/usr/lib/python3/dist-packages/matplotlib/style/core.py", line 115, in iter_style_files
    for path in os.listdir(style_dir):
FileNotFoundError: [Errno 2] No such file or directory: '/usr/share/matplotlib/mpl-data/stylelib'
@pelson
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pelson commented Sep 25, 2014

@tonysyu - obviously the stylelib folder isn't there - but I wouldn't expect it to have to be there. Any thoughts?

@tacaswell tacaswell added this to the v1.4.1 milestone Sep 25, 2014
@tacaswell
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I suspect that this is related to the changes made to play nice with pyfreeze.

How did you install mpl? Is this from @takluyver 's ppa? The debian meta-data might need some updating.

@tobias47n9e
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Yes I am using @takluyver 's ppa. Since adding it about a year ago I never changed anything anymore.

@takluyver
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I'm happy to update that if it needs changes - I don't really pay much attention to it except when I get failure notifications. Or if someone else wants to update it, the packaging information is stored here:

https://code.launchpad.net/~takluyver/matplotlib/debian-daily

(You can make merge proposals, which are the LP equivalent of pull requests)

@tacaswell
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Specifically, I suspect that #3390 is the source of the change that broke the daily build.

@tacaswell
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I am going to close this as this is a downstream(?) problem.

@spiessbuerger Also make fully remove the current installation and try re-installing, some files got moved around, it is possible some deleted files got left behind and are now messing you up.

@takluyver
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I've copied across a fix from the main Debian packaging: hopefully this will fix the problem when it rebuilds some time in the next 24 hours.

http://bazaar.launchpad.net/~takluyver/matplotlib/debian-daily/revision/33

@tobias47n9e
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@takluyver , @tacaswell, @pelson - Everything works again. Thanks to all of you!

@takluyver
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You're welcome. Thanks for bringing the issue to my attention. I don't
actually use the daily builds myself now, so I don't see issues like this.

@qgib qgib mentioned this issue May 25, 2019
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@tacaswell @takluyver @pelson @tobias47n9e