在 Mac OSX 10.6 上的 python 2.7 中导入 matplotlib.mlab 和 .pyplot 时出现问题
我正在尝试在 OSX 10.6 上的 Python 2.7 中使用 matplotlib 绘制直方图
我已经验证可以将 numpy、scipy 和 matplotlib 导入到 python 中。 matplotlib 网站上的示例脚本可以执行此操作
#!/usr/bin/env python
import numpy as np
import matplotlib.mlab as mlab
import matplotlib.pyplot as plt
但是,我在执行此操作时收到错误。这是我尝试导入 mlab 时发生的情况。
Python 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib.mlab as mlab
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/mlab.py", line 151, in <module>
import matplotlib.nxutils as nxutils
ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/nxutils.so, 2): no suitable image found. Did find:
/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/nxutils.so: no matching architecture in universal wrapper
>>>
我做错了什么,无法像脚本那样导入这些内容?
I am trying to plot a histogram using matplotlib in Python 2.7 on OSX 10.6
I have verified that I can import numpy, scipy, and matplotlib into python. A sample script on the matplotlib website does
#!/usr/bin/env python
import numpy as np
import matplotlib.mlab as mlab
import matplotlib.pyplot as plt
However, I get an error when doing this. Here is what happens when I try to import mlab.
Python 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib.mlab as mlab
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/mlab.py", line 151, in <module>
import matplotlib.nxutils as nxutils
ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/nxutils.so, 2): no suitable image found. Did find:
/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/nxutils.so: no matching architecture in universal wrapper
>>>
What am I doing wrong that I can't import these as the script does?
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对于ImportError:似乎存在架构不匹配。也许您已经安装了 32 位版本的 matplotlib,但使用的是 64 位 Python?以下 shell 命令打印什么?
对于AttributeError:您必须显式导入
matplotlib.pyplot
,仅导入matplotlib
时不会自动导入。最常见的别名方案是:然后您可以使用
plt
名称绘制直方图:For the ImportError: It seems that there is an architecture mismatch. Maybe you have installed a 32-bit version of matplotlib, but are using a 64-bit Python? What does the following shell command print?
For the AttributeError: You have to explicitely import
matplotlib.pyplot
, it won't get imported automatically when just importingmatplotlib
. The most common aliasing scheme is:Then you can draw your histogram using the
plt
name: