Question

我最近切换到了ipython的EPD版本（我有64位学生版），现在我遇到了pylab问题。当我输入“import pylab”时，它会给我以下错误

ImportError                               Traceback (most recent call last)
<ipython-input-1-0c66bb86b884> in <module>()
----> 1 import pylab

/Library/Python/2.7/site-packages/matplotlib-1.1.0-py2.7-macosx-10.7-intel.egg/pylab.py in <module>()
----> 1 from matplotlib.pylab import *
      2 import matplotlib.pylab
      3 __doc__ = matplotlib.pylab.__doc__

/Library/Python/2.7/site-packages/matplotlib-1.1.0-py2.7-macosx-10.7-intel.egg/matplotlib/pylab.py in <module>()
    219      silent_list, iterable, dedent
    220 
--> 221 from matplotlib import mpl  # pulls in most modules
    222 
    223 from matplotlib.dates import date2num, num2date,\

/Library/Python/2.7/site-packages/matplotlib-1.1.0-py2.7-macosx-10.7-intel.egg/matplotlib/mpl.py in <module>()
      1 from matplotlib import artist
----> 2 from matplotlib import axis
      3 from matplotlib import axes
      4 from matplotlib import cbook
      5 from matplotlib import collections

/Library/Python/2.7/site-packages/matplotlib-1.1.0-py2.7-macosx-10.7-intel.egg/matplotlib/axis.py in <module>()
      8 from matplotlib.artist import allow_rasterization
      9 import matplotlib.cbook as cbook
---> 10 import matplotlib.font_manager as font_manager
     11 import matplotlib.lines as mlines
     12 import matplotlib.patches as mpatches

/Library/Python/2.7/site-packages/matplotlib-1.1.0-py2.7-macosx-10.7-intel.egg/matplotlib/font_manager.py in <module>()
     50 import matplotlib
     51 from matplotlib import afm
---> 52 from matplotlib import ft2font
     53 from matplotlib import rcParams, get_configdir
     54 from matplotlib.cbook import is_string_like

ImportError: dlopen(/Library/Python/2.7/site-packages/matplotlib-1.1.0-py2.7-macosx-10.7-intel.egg/matplotlib/ft2font.so, 2): Symbol not found: _FT_Attach_File
  Referenced from: /Library/Python/2.7/site-packages/matplotlib-1.1.0-py2.7-macosx-10.7-intel.egg/matplotlib/ft2font.so
  Expected in: flat namespace
 in /Library/Python/2.7/site-packages/matplotlib-1.1.0-py2.7-macosx-10.7-intel.egg/matplotlib/ft2font.so

我需要pylab / matplotlib才能生存，所以这很糟糕。有趣的是，当我双击我的/ Applications / Enthought /文件夹中的PyLab（64位）.app时，它打开一个终端并且pylab运行良好，当我从命令行调用它时它不起作用，或者当我使用笔记本时。如果我可以让python使用我从EPD获得的pylab版本，那么一切都会好的，但默认情况下从/Library/Python/2.7/site-packages/matplotlib-1.1.0-py2.7导入-macosx-10.7-intel.egg / matplotlib / ft2font.so出了问题。

Answer 1

看起来你的EPD python与你用Apple的python安装的软件包之间存在冲突。

1）正如tsyu80所示，你的PATH可能会指向你的Apple的python，所以你可能会开始它的ipython而不是EPD。如果是这种情况，将以下行添加到〜/ .bash_profile文件中应该解决这个问题（尽管在EPD安装期间应该已经添加了这些行）

# Setting PATH for EPD-7
PATH="/Library/Frameworks/EPD64.framework/Versions/Current/bin:${PATH}"
export PATH

请注意，您应该使用新的终端会话来使这些设置生效。

2）即使您启动EPD（i）python，它也可能是从Apple安装的软件包中导入的。见https://support.enthought.com/entries/22094157-OS-X-Conflict-with-installed-packages-in-earlier-Python-installation

3）解决此问题后，请务必更新到最新版本的ipython： https://support.enthought.com/entries/22415022-Using-enpkg-to-update-EPD-packages

使用EPD版ipython的pylab问题

1 个答案: