相关疑难解决方法(0)

我似乎无法正确使用sudo pip安装,因此它安装到以下目录中:

/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/

这样我就可以使用python导入模块了

我跑了

sudo pip install scikit-learn --upgrade

结果

Requirement already up-to-date: scikit-learn in /usr/local/lib/python2.7/site-packages
Cleaning up...

但是,它不在正确的目录中

如何将sudo pip install安装到正确的目录中？

另外,我试过了

sudo pip安装Scrappy

我收到以下消息

new-host-2:site-packages Chris$ sudo pip install Scrapy
Password:
Requirement already satisfied (use --upgrade to upgrade): Scrapy in /usr/local/lib/python2.7/site-packages
Requirement already satisfied (use --upgrade to upgrade): Twisted>=10.0.0 in /usr/local/lib/python2.7/site-packages (from Scrapy)
Requirement already satisfied (use --upgrade to upgrade): w3lib>=1.8.0 in /usr/local/lib/python2.7/site-packages (from Scrapy)
Requirement already satisfied (use --upgrade to upgrade): queuelib in /usr/local/lib/python2.7/site-packages (from Scrapy) …

完整的错误是：

Traceback (most recent call last):
  File "D:\pyqt4_examples\matplotlib.py", line 4, in <module>
    import matplotlib.pyplot as plt
  File "D:\pyqt4_examples\matplotlib.py", line 4, in <module>
    import matplotlib.pyplot as plt
ModuleNotFoundError: No module named 'matplotlib.pyplot'; 'matplotlib' is not a package

测试代码在文件中histogram.py：

import sys
for item in sys.path: print( item )

import random
import matplotlib.pyplot as plt

x = random.sample(range(1000), 30)
xbins = [0, len(x)]

print( "x: " + str( x ) )
print( "xbins: " + str( xbins ) )

plt.bar(range(0,30), x) …