Pip Install 没有安装到正确的目录？

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Pip Install 没有安装到正确的目录？

我似乎无法正确使用sudo pip install，使其安装到以下目录中：

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

以便我可以使用Python导入该模块

我已经运行了

sudo pip install scikit-learn --upgrade

结果是

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

然而，它没有安装在正确的目录中

如何使sudo pip install安装到正确的目录中？

此外，我尝试了

sudo pip install 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)
Requirement already satisfied (use --upgrade to upgrade): lxml in /usr/local/lib/python2.7/site-packages (from Scrapy)
Requirement already satisfied (use --upgrade to upgrade): pyOpenSSL in /usr/local/lib/python2.7/site-packages (from Scrapy)
Requirement already satisfied (use --upgrade to upgrade): cssselect>=0.9 in /usr/local/lib/python2.7/site-packages (from Scrapy)
Requirement already satisfied (use --upgrade to upgrade): six>=1.5.2 in /usr/local/lib/python2.7/site-packages (from Scrapy)
Requirement already satisfied (use --upgrade to upgrade): zope.interface>=3.6.0 in /usr/local/lib/python2.7/site-packages (from Twisted>=10.0.0->Scrapy)
Requirement already satisfied (use --upgrade to upgrade): cryptography>=0.2.1 in /usr/local/lib/python2.7/site-packages (from pyOpenSSL->Scrapy)
Requirement already satisfied (use --upgrade to upgrade): setuptools in /usr/local/lib/python2.7/site-packages (from zope.interface>=3.6.0->Twisted>=10.0.0->Scrapy)
Requirement already satisfied (use --upgrade to upgrade): cffi>=0.8 in /usr/local/lib/python2.7/site-packages (from cryptography>=0.2.1->pyOpenSSL->Scrapy)
Requirement already satisfied (use --upgrade to upgrade): pycparser in /usr/local/lib/python2.7/site-packages (from cffi>=0.8->cryptography>=0.2.1->pyOpenSSL->Scrapy)

这两种情况都表明已经安装但不正确。例如，当我在Python中运行以下导入时：

import scrapy
---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
 in ()
----> 1 import scrapy
ImportError: No module named scrapy

我尝试了以下：

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

admin 更改状态以发布 2023年5月23日
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2 答案

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以下是我在Windows上的解决方法。原因是安装了多个Python。

  1. 使用正确的Python更新路径
  2. 使用python -m pip uninstall pip setuptools卸载pip
  3. 重新启动Windows，在重启之前不起作用
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0 Comments

从原始问题的评论中看来，似乎您安装了多个版本的Python，而pip则会进入错误的版本。

首先，要知道您正在使用哪个版本的Python，只需键入which python。您应该会看到： 

which python
/Library/Frameworks/Python.framework/Versions/2.7/bin/python

如果您使用的是正确版本的Python，或者： 

which python
/usr/bin/python

如果您进入了“错误”的版本。为了使pip进入正确的版本，您首先需要更改路径： 

 export PATH=/Library/Frameworks/Python.framework/Versions/2.7/bin/python:${PATH}

现在键入“which python”将得到正确结果。接下来，安装pip（如果此Python安装尚未安装它）。最后，使用它。现在应该没问题了。

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