matplotlib出错

当我尝试使用魔术命令%pylab时，出现以下错误：

In [1]: %pylab
---------------------------------------------------------------------------

UnicodeDecodeError                        Traceback (most recent call last)
<ipython-input-1-5c1faa999e5b> in <module>()
----> 1 get_ipython().magic(u'pylab')

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/interactiveshell.pyc in magic(self, arg_s)
   2203         magic_name, _, magic_arg_s = arg_s.partition(' ')
   2204         magic_name = magic_name.lstrip(prefilter.ESC_MAGIC)
-> 2205         return self.run_line_magic(magic_name, magic_arg_s)
   2206 
   2207     #-------------------------------------------------------------------------

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/interactiveshell.pyc in run_line_magic(self, magic_name, line)
   2124                 kwargs['local_ns'] = sys._getframe(stack_depth).f_locals
   2125             with self.builtin_trap:
-> 2126                 result = fn(*args,**kwargs)
   2127             return result
   2128 

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/magics/pylab.pyc in pylab(self, line)

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/magic.pyc in <lambda>(f, *a, **k)
    191     # but it's overkill for just that one bit of state.
    192     def magic_deco(arg):
--> 193         call = lambda f, *a, **k: f(*a, **k)
    194 
    195         if callable(arg):

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/magics/pylab.pyc in pylab(self, line)
    134             import_all = not args.no_import_all
    135 
--> 136         gui, backend, clobbered = self.shell.enable_pylab(args.gui, import_all=import_all)
    137         self._show_matplotlib_backend(args.gui, backend)
    138         print ("Populating the interactive namespace from numpy and matplotlib")

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/interactiveshell.pyc in enable_pylab(self, gui, import_all, welcome_message)
   2980         from IPython.core.pylabtools import import_pylab
   2981 
-> 2982         gui, backend = self.enable_matplotlib(gui)
   2983 
   2984         # We want to prevent the loading of pylab to pollute the user's

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/interactiveshell.pyc in enable_matplotlib(self, gui)
   2941                 gui, backend = pt.find_gui_and_backend(self.pylab_gui_select)
   2942 
-> 2943         pt.activate_matplotlib(backend)
   2944         pt.configure_inline_support(self, backend)
   2945 

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/pylabtools.pyc in activate_matplotlib(backend)
    287     matplotlib.rcParams['backend'] = backend
    288 
--> 289     import matplotlib.pyplot
    290     matplotlib.pyplot.switch_backend(backend)
    291 

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/pyplot.p in <module>()
     25 
     26 import matplotlib
---> 27 import matplotlib.colorbar
     28 from matplotlib import style
     29 from matplotlib import _pylab_helpers, interactive

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/colorbar.py in <module>()
     32 import matplotlib.artist as martist
     33 import matplotlib.cbook as cbook
---> 34 import matplotlib.collections as collections
     35 import matplotlib.colors as colors
     36 import matplotlib.contour as contour

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/collections.py in <module>()
     25 import matplotlib.artist as artist
     26 from matplotlib.artist import allow_rasterization
---> 27 import matplotlib.backend_bases as backend_bases
     28 import matplotlib.path as mpath
     29 from matplotlib import _path

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/backend_bases.py in <module>()
     54 
     55 import matplotlib.tight_bbox as tight_bbox
---> 56 import matplotlib.textpath as textpath
     57 from matplotlib.path import Path
     58 from matplotlib.cbook import mplDeprecation

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/textpath.py in <module>()
     17 from matplotlib.path import Path
     18 from matplotlib import rcParams
---> 19 import matplotlib.font_manager as font_manager
     20 from matplotlib.ft2font import FT2Font, KERNING_DEFAULT, LOAD_NO_HINTING
     21 from matplotlib.ft2font import LOAD_TARGET_LIGHT

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in <module>()
   1410                 verbose.report("Using fontManager instance from %s" % _fmcache)
   1411         except:
-> 1412             _rebuild()
   1413     else:
   1414         _rebuild()

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in _rebuild()
   1395     def _rebuild():
   1396         global fontManager
-> 1397         fontManager = FontManager()
   1398         if _fmcache:
   1399             pickle_dump(fontManager, _fmcache)

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in __init__(self, size, weight)
   1035         #  Load TrueType fonts and create font dictionary.
   1036 
-> 1037         self.ttffiles = findSystemFonts(paths) + findSystemFonts()
   1038         self.defaultFamily = {
   1039             'ttf': 'Bitstream Vera Sans',

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in findSystemFonts(fontpaths, fontext)
    320                     fontfiles[f] = 1
    321 
--> 322             for f in get_fontconfig_fonts(fontext):
    323                 fontfiles[f] = 1
    324 

/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in get_fontconfig_fonts(fontext)
    272         pipe = subprocess.Popen(['fc-list', '--format=%{file}\\n'],
    273                                 stdout=subprocess.PIPE,
--> 274                                 stderr=subprocess.PIPE)
    275         output = pipe.communicate()[0]
    276     except (OSError, IOError):

/Users/rafaelrodrigues/anaconda/lib/python2.7/subprocess.pyc in __init__(self, args, bufsize, executable, stdin, stdout, stderr, preexec_fn, close_fds, shell, cwd, env, universal_newlines, startupinfo, creationflags)
    708                                 p2cread, p2cwrite,
    709                                 c2pread, c2pwrite,
--> 710                                 errread, errwrite)
    711         except Exception:
    712             # Preserve original exception in case os.close raises.

/Users/rafaelrodrigues/anaconda/lib/python2.7/subprocess.pyc in _execute_child(self, args, executable, preexec_fn, close_fds, cwd, env, universal_newlines, startupinfo, creationflags, shell, to_close, p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite)
   1325                         raise
   1326                 child_exception = pickle.loads(data)
-> 1327                 raise child_exception
   1328 
   1329 

UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 0: ordinal not in range(128)

[1]中的

：%pylab
---------------------------------------------------------------------------
UnicodeDecodeError回溯（最近一次呼叫最后一次）
在（）
---->1获取_-ipython（）.magic（u'pylab'）
/魔术版用户/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/interactiveshell.pyc（self，arg_s）
2203 magic_名称，magic_arg_s=arg_s.分区（“”）
2204 magic_name=magic_name.lstrip（prefilter.ESC_magic）
->2205返回自我。运行幻术（幻术名称、幻术参数）
2206
2207     #-------------------------------------------------------------------------
/run\u line\u magic中的Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/interactiveshell.pyc（self，magic\u name，line）
2124 kwargs['local\u ns']=sys.\u getframe（堆栈深度）.f\u locals
2125带自建存水弯：
->2126结果=fn（*args，**kwargs）
2127返回结果
2128
/pylab中的Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/magics/pylab.pyc（self，line）
/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/magic.pyc in（f，*a，**k）
191#但这一点对国家来说太过分了。
192 def魔术装饰（arg）：
-->193调用=λf，*a，**k:f（*a，**k）
194
195如果可调用（arg）：
/pylab中的Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/magics/pylab.pyc（self，line）
134导入全部=非参数。否导入全部
135
-->136 gui，后端，clobbered=self.shell.enable_pylab（args.gui，import_all=import_all）
137 self.\u show\u matplotlib\u后端（args.gui，后端）
138打印（“从numpy和matplotlib填充交互式命名空间”）
/enable_pylab中的Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/interactiveshell.pyc（self、gui、import_all、welcome_消息）
2980来自IPython.core.pylabtools import_pylab
2981
->2982 gui，后端=self.enable_matplotlib（gui）
2983
2984#我们希望防止装载pylab污染用户的电脑
/enable_matplotlib（self，gui）中的Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/interactiveshell.pyc
2941 gui，backend=pt.find_gui_和_backend（self.pylab_gui_select）
2942
->2943部分激活_matplotlib（后端）
2944部分配置内嵌支持（自身、后端）
2945
/activate_matplotlib（后端）中的Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/IPython/core/pylabtools.pyc
287 matplotlib.rcParams['backend']=后端
288
-->289导入matplotlib.pyplot
290 matplotlib.pyplot.switch_后端（后端）
291
/Users/rafaelrodrigues/anaconda/lib/python2.7/site packages/matplotlib/pyplot.p in（）
25
26导入matplotlib
--->27导入matplotlib.colorbar
28来自matplotlib导入样式
29来自matplotlib导入_pylab_帮助程序，交互式
/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/colorbar.py in（）
32导入matplotlib.artist作为martist
33将matplotlib.cbook导入为cbook
--->34将matplotlib.collections导入为集合
35导入matplotlib.colors作为颜色
36将matplotlib.contour导入为等高线
/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/collections.py in（）
25将matplotlib.artist作为艺术家导入
26从matplotlib.artist导入允许光栅化
--->27导入matplotlib.backend_base作为后端_base
28将matplotlib.path导入为mpath
29从matplotlib导入路径
/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/backend_base.py in（）
54
55导入matplotlib.tight_bbox作为tight_bbox
--->56将matplotlib.textpath导入为textpath
57从matplotlib.path导入路径
58从matplotlib.cbook导入mpldeprication
/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/textpath.py in（）
17从matplotlib.path导入路径
18从matplotlib导入rcParams
--->19将matplotlib.font\u管理器导入为font\u管理器
20从matplotlib.ft2font导入ft2font、紧排默认值、加载无提示
21从matplotlib.FT2导入加载目标灯
/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in（）
1410 verbose.report（“使用来自%s的fontManager实例”%\u fmcache）
1411除了：
->1412()
1413其他：
1414_重建（）
/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/font\u manager.py in urebuild（）
1395 def_rebuild（）：
1396全局字体管理器
->1397 fontManager=fontManager（）
1398如果_fmcache：
1399 pickle_dump（fontManager，_fmcache）
/Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/font\u manager.py in\uuuuuuuuu init\uuuuuuuu（自身、大小、重量）
1035#加载TrueType字体并创建字体字典。
1036
->1037 self.ttffiles=findSystemFonts（路径）+findSystemFonts（）
1038 self.defaultFamily={
1039'ttf'：'Bitstream Vera Sans'，
/findSystemFonts（FontPath，FontText）中的Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py
320个文件[f]=1
321
-->322对于get_fontconfig_字体（fontext）中的f：
323个文件[f]=1
324
/get_fontconfig_fonts（FontText）中的Users/rafaelrodrigues/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py
272 pipe=subprocess.Popen（['fc-list'，'--format=%{file}\\n']，
273标准输出=子流程管道，
-->274 stderr=子流程管道）