想法-matplotlib(plot()函数的问题) [英] Enthought - matplotlib (problems with plot() function)

问题描述

我正在尝试在Canopy Express上使用 matplotlib .甚至简单的代码也无法运行...

I am trying to use matplotlib on Canopy Express. Even simple code does not run...

注意:系统无法识别plot(x)功能.似乎有些东西与ASCII X Unicode有关.我的计算机使用Unicode英语(美国).

NOTE: the system does not recognize the plot(x) function. It seems there is something with ASCII X Unicode. My computer uses Unicode English(US).

在控制台中，我们有:

 C:\Users\dafonseca\AppData\Local\Enthought\Canopy\User\lib\site-packages\matplotlib\font_manager.py in createFontList(fontfiles, fontext)
        582                 continue
        583             try:
    --> 584                 prop = ttfFontProperty(font)
        585             except KeyError:
        586                 continue

C:\Users\dafonseca\AppData\Local\Enthought\Canopy\User\lib\site-packages\matplotlib\font_manager.py in ttfFontProperty(font)
        396         sfnt2 = ''
        397     if sfnt4:
    --> 398         sfnt4 = sfnt4.decode('ascii').lower()
        399     else:
        400         sfnt4 = ''

UnicodeDecodeError: 'ascii' codec can't decode byte 0x82 in position 0: ordinal not in range(128)'

import numpy as np
import matplotlib.pyplot as plt

    x = np.linspace(0, 10)
    line, = plt.plot(x, np.sin(x), '--', linewidth=2)
    dashes = [10, 5, 100, 5] # 10 points on, 5 off, 100 on, 5 off
    line.set_dashes(dashes)
    plt.show()

推荐答案

这是已知的 issue 在matplotlib 1.3.0中，涉及到您的一种字体名称中包含非ASCII字符(可能是Æ字符).

This is a known issue in matplotlib 1.3.0 that relates to having a non-ASCII character in one of your font names (possibly the Æ character).

您可以找到并删除有问题的字体(最好的主意)，或尝试使用以下过程修补安装:

You can either find and remove the offending font (the best idea) or try to patch your installation using the following procedure:

在文本编辑器中打开以下内容:

Open the following in a text editor:

\Users\dafonseca\AppData\Local\Enthought\Canopy\User\lib\site- packages\matplotlib\font_manager.py

搜索sfnt4 = sfnt4.decode('ascii').lower()

并替换为sfnt4 = sfnt4.decode('ascii', 'ignore').lower()

请注意，该错误在下一版matplotlib中将不存在.

Note that this bug won't exist in the next release of matplotlib.

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