导出font_path后Python word_cloud找不到font_path

Question

我正在尝试使用：https : //github.com/amueller/word_cloud生成带有掩码的词云，但我在初始设置时遇到了一些问题。作者说，如果您不在 Ubuntu 中，则必须将 FONT_PATH 设置为字体的路径。我正在运行 Ubuntu，但我遇到了这个错误：

错误：

Traceback (most recent call last):
  File "test.py", line 11, in <module>
    wordcloud = WordCloud().generate(text)
  File "/usr/local/lib/python2.7/dist-packages/wordcloud/wordcloud.py", line 311, in generate
    self.fit_words(self.words_)
  File "/usr/local/lib/python2.7/dist-packages/wordcloud/wordcloud.py", line 179, in fit_words
    font = ImageFont.truetype(self.font_path, font_size)
  File "/usr/lib/python2.7/dist-packages/PIL/ImageFont.py", line 228, in truetype
    return FreeTypeFont(font, size, index, encoding)
  File "/usr/lib/python2.7/dist-packages/PIL/ImageFont.py", line 131, in __init__
    self.font = core.getfont(font, size, index, encoding)
IOError: cannot open resource

所以我决定导出字体路径：

~/wordcloud$ echo $FONT_PATH
/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf

但我仍然遇到同样的错误。决定了，好吧，如果我将它添加到脚本中，那么：

from os import path
from os import environ
import matplotlib.pyplot as plt
from wordcloud import WordCloud

d = path.dirname(__file__)

environ["FONT_PATH"] = "/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf"
# Read the whole text.
text = open('constitution.txt').read()
wordcloud = WordCloud().generate(text)

但是还是不行。

Answer 1

使用font_path作为 WordCloud 参数。

wordcloud = WordCloud(font_path='/Library/Fonts/Verdana.ttf').generate(text)

它应该工作。

最好的问候罗伯特