在Canopy中导入matplotlib时出错 - rc_params_from_file()

Question

我在我的Ubuntu 14.04上安装了Enthought Canopy。我正在尝试运行一些示例的matplotlib程序（从库的网站上获取的）。每次运行程序时，Canopy的命令提示符都会显示以下信息：

TypeError                                 Traceback (most recent call last)
/home/guras/Canopy/appdata/canopy-1.4.1.1975.rh5-x86_64/lib/python2.7/site-packages/IPython/utils/py3compat.pyc in execfile(fname, *where)
    202             else:
    203                 filename = fname
--> 204             __builtin__.execfile(filename, *where)

/home/guras/Python programy/pierwszy.py in <module>()
      4 This example uses the Fahrenheit and Celsius scales.
      5 """
----> 6 import matplotlib.pyplot as plt
      7 import numpy as np
      8 

/home/guras/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/matplotlib/pyplot.py in <module>()
     26 import matplotlib
     27 import matplotlib.colorbar
---> 28 from matplotlib import style
     29 from matplotlib import _pylab_helpers, interactive
     30 from matplotlib.cbook import dedent, silent_list, is_string_like, is_numlike

/home/guras/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/matplotlib/style/__init__.py in <module>()
      1 from __future__ import absolute_import
      2 
----> 3 from .core import use, context, available, library, reload_library

/home/guras/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/matplotlib/style/core.py in <module>()
    147 # Load style library
    148 # ==================
--> 149 _base_library = load_base_library()
    150 
    151 library = None

/home/guras/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/matplotlib/style/core.py in load_base_library()
     92     """Load style library defined in this package."""
     93     library = dict()
---> 94     library.update(read_style_directory(BASE_LIBRARY_PATH))
     95     return library
     96 

/home/guras/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/matplotlib/style/core.py in read_style_directory(style_dir)
    125     styles = dict()
    126     for path, name in iter_style_files(style_dir):
--> 127         styles[name] = rc_params_from_file(path, use_default_template=False)
    128     return styles
    129 

TypeError: **rc_params_from_file() got an unexpected keyword argument 'use_default_template'** 

有没有什么办法可以解决这个问题？

Answer 1

使用Canopy包管理器来把matplotlib更新到最新版本。

Answer 2

在matplotlib 1.4.0rc1版本中，增加了一个叫做use_default_template的关键词参数，具体可以查看这个链接。

很可能你现在用的matplotlib版本比1.4.0rc1要旧，所以需要升级一下。

---

如果你安装了多个版本的matplotlib，你需要确保包含新版本的文件夹在sys.path中排在旧版本之前，或者你也可以直接删除旧版本的matplotlib。