Question

作为标题，我无法导入matplotlib ...

以下是代码：

import cv2
import numpy as np
from matplotlib import pyplot as plt

img = cv2.imread('picture.jpg',0)
f = np.fft.fft2(img)
fshift = np.fft.fftshift(f)
magnitude_spectrum = 20*np.log(np.abs(fshift))

plt.subplot(121),plt.imshow(img, cmap = 'gray')
plt.title('Input Image'), plt.xticks([]), plt.yticks([])
plt.subplot(122),plt.imshow(magnitude_spectrum, cmap = 'gray')
plt.title('Magnitude Spectrum'), plt.xticks([]), plt.yticks([])
plt.show()

以下是错误消息：

Traceback (most recent call last):


   File "<pyshell#4>", line 1, in <module>
   from matplotlib import pyplot as plt

   File "C:\Python34\lib\site-packages\matplotlib\__init__.py", line
138, in <module>

import pyparsing

   File "C:\Python34\lib\site-packages\pyparsing.py", line 3478, in
<module>

    _escapedPunc = Word( _bslash, r"\[]-*.$+^?()~ ", exact=2 ).setParseAction(lambda s,l,t:t[0][1])

   File "C:\Python34\lib\site-packages\pyparsing.py", line 948, in
setParseAction

    self.parseAction = list(map(_trim_arity, list(fns)))

   File "C:\Python34\lib\site-packages\pyparsing.py", line 808, in
_trim_arity
    this_line = extract_stack()[-1]

   File "C:\Python34\lib\site-packages\pyparsing.py", line 793, in
extract_stack

    return [(frame_summary.filename, frame_summary.lineno)]

 AttributeError: 'tuple' object has no attribute 'filename'

提前致谢！

Answer 1

这是一个pyparsing问题：

https://github.com/matplotlib/matplotlib/issues/6399

等待修复。或者你可以将python升级到3.5

Answer 2

由于最近版本的pyparsing与matplotlib发生冲突而导致错误，该点数已经提升。

解决方法是：pip install pyparsing==2.1.1后跟pip install matplotlib

Answer 3

我安装了最新的pyparsing（2.1.3）并解决了这个问题！

下载页面：https://pypi.python.org/pypi/pyparsing/2.1.3

安装pyparsing，dateuil，six和numpy之后无法导入matplotlib

3 个答案: