安裝和得到一個Python模塊在Mac

工作，我試圖用pip上運行埃爾卡皮坦我的Mac上安裝模塊twilio並呈現如下：安裝和得到一個Python模塊在Mac

~ $ pip install twilio 
Requirement already satisfied (use --upgrade to upgrade): twilio in /Library/Python/2.7/site-packages 
Requirement already satisfied (use --upgrade to upgrade): httplib2>=0.7 in /Library/Python/2.7/site-packages (from twilio) 
Requirement already satisfied (use --upgrade to upgrade): six in /Library/Python/2.7/site-packages (from twilio) 
Requirement already satisfied (use --upgrade to upgrade): pytz in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python (from twilio) 
~ $ python 
Python 2.7.10 (v2.7.10:15c95b7d81dc, May 23 2015, 09:33:12) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin 
Type "help", "copyright", "credits" or "license" for more information. 
>>> import twilio 
Traceback (most recent call last): 
    File "<stdin>", line 1, in <module> 
    File "/Library/Python/2.7/site-packages/twilio/__init__.py", line 11, in <module> 
    from .rest.exceptions import TwilioRestException 
    File "/Library/Python/2.7/site-packages/twilio/rest/__init__.py", line 1, in <module> 
    from .base import set_twilio_proxy 
    File "/Library/Python/2.7/site-packages/twilio/rest/base.py", line 6, in <module> 
    from twilio.rest.resources import Connection 
    File "/Library/Python/2.7/site-packages/twilio/rest/resources/__init__.py", line 1, in <module> 
    from .util import (
    File "/Library/Python/2.7/site-packages/twilio/rest/resources/util.py", line 5, in <module> 
    import pytz 
ImportError: No module named pytz

然後我試圖安裝pytz，它說我已經有它：

~ $ pip install pytz 
Requirement already satisfied (use --upgrade to upgrade): pytz in /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python

是否是由於我在我的Mac上有不同的Python分佈的事實？我搜索了一段時間，人們都說pip只安裝到默認的Python，最好使用MacPort，Homebrew和virtualenv來管理python發行版。但我真正想做的就是直接解決這個特殊的問題。我跑type -a python我從另一篇文章看到它產生，

~ $ type -a python 
python is /Library/Frameworks/Python.framework/Versions/2.7/bin/python 
python is /usr/local/bin/python 
python is /usr/bin/python

他們所有的Python 2.7.10，前兩個似乎是相同的。（我發現他們是Python.org的Python）。

我不知道如何在終端之間切換它們，或者pip分別爲它們安裝軟件包。我想這是一個普遍的問題，但我無法通過一小時的搜索解決它。

要清楚，我加入了一些更多的信息在這裏，

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

~ $ /Library/Frameworks/Python.framework/Versions/2.7/bin/python 
Python 2.7.10 (v2.7.10:15c95b7d81dc, May 23 2015, 09:33:12) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin 
Type "help", "copyright", "credits" or "license" for more information. 
>>> 

~ $ /usr/local/bin/python 
Python 2.7.10 (v2.7.10:15c95b7d81dc, May 23 2015, 09:33:12) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin 
Type "help", "copyright", "credits" or "license" for more information. 
>>> 

~ $ /usr/bin/python 
Python 2.7.10 (default, Aug 22 2015, 20:33:39) 
[GCC 4.2.1 Compatible Apple LLVM 7.0.0 (clang-700.0.59.1)] on darwin 
Type "help", "copyright", "credits" or "license" for more information. 
>>>

來源

2015-11-06 Logan Yang

您使用而python命令調用python.org Python是可能與系統的Python相關的pip實例。爲了避免這種不匹配的一種方法是通過使用調用python命令來調用pip，在這種情況下：

python -m pip install twilio

這將確保您使用的是正確的pip和包安裝到正確的位置對於正在使用的Python。

來源

2015-11-06 02:30:51

非常感謝，它做到了！但我仍然有些疑惑。有沒有辦法直接檢查當前與哪個'python''pip關聯？ –

'pip'命令是一個Python腳本。您可以檢查它的「shebang」行來查看直接調用時（而不是通過「python -m」）將使用的Python解釋器的路徑。如果你使用的是POSIX兼容的shell，比如'bash'，那麼下面的命令應該可以工作：'head -1 $（type -p pip）' –

安裝和得到一個Python模塊在Mac

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