Mac - Python - import error: "No module named site"

Question

Tonight I am trying to get the package called "requests" installed and have begun fumbling around with the terminal and do not have very much intuition when it comes to this sort of thing.

Computer is a mac mini, osx version 10.9.4

In /Library/Python I have 4 folders: 2.3 2.5 2.6 and 2.7.
In /Applications I have "Python 2.7" and "Python 3.4"
I can open IDLE and type 8+8 and I get 16 just fine.

Here is the error I am getting in terminal:

 host-210-117:~ Mario$ python       
 ImportError: No module named site       

 host-210-117:~ Mario$ pip       
 ImportError: No module named site      

My goal is to run this command in the terminal:

 pip install requests

I believe pip is already installed. I run the file "get-pip.py" in IDLE and this is what it says:

 Requirement already up-to-date: pip in /Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg
 Cleaning up...

This may have something to do with paths? I would appreciate some guidance/hints/tips, thanks!

Oh and just a little more info that might help solve this question. Here is the first few lines of the program I'm running:

 import base64
 import hmac
 import json
 import requests
 import time
 import urllib
 import os

Which gives me this error in IDLE (so I guess it importing those first few packages with no problem?) :

 >>> 

 Traceback (most recent call last):
   File "/Users/Mario/Desktop/pyak/pyak.py", line 4, in <module>
     import requests
 ImportError: No module named requests
 >>> 

***** System path list:

sys.path ['/Users/Mario/Desktop/pyak', '/Users/Mario/Documents', '/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg', '/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip', '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7', '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin', '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac', '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages', '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk', '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old', '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload', '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages', '/Library/Python/2.7/site-packages']

*** another update:

 host-210-117:~ Mario$ which python      
 /Library/Frameworks/Python.framework/Versions/2.7/bin/python

*** a little more info (is this supposed to happen?)

 host-210-117:~ Mario$ which pip       
 /usr/local/bin/pip        
 host-210-117:~ Mario$ pip       
 ImportError: No module named site       

*** After changing .bashrc

.bashrc: here's what in the file

export PATH="$PATH:$HOME/.rvm/bin" # Add RVM to PATH for scripting
alias python=/Library/Python/2.7/python

here is the output of running:

  pip install requests      

host-210-117:~ Mario$ pip install requests
Downloading/unpacking requests
Downloading requests-2.4.1-py2.py3-none-any.whl (458kB): 458kB downloaded
Installing collected packages: requests
Cleaning up...
Exception:
Traceback (most recent call last):
File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/basecommand.py", line 122, in main status = self.run(options, args)
File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/commands/install.py", line 283, in run requirement_set.install(install_options, global_options, root=options.root_path)
File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/req.py", line 1435, in install requirement.install(install_options, global_options, *args, **kwargs)
File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/req.py", line 671, in install self.move_wheel_files(self.source_dir, root=root) File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/req.py", line 901, in move_wheel_files pycompile=self.pycompile,
File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/wheel.py", line 215, in move_wheel_files clobber(source, lib_dir, True)
File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/wheel.py", line 205, in clobber os.makedirs(destdir)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/os.py", line 157, in makedirs mkdir(name, mode)
OSError: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/requests'

Storing debug log for failure in /Users/Mario/Library/Logs/pip.log

Answer 1

I met the same question, and error info is:

ModuleNotFoundError: No module named 'xxx'

and finally solved by

brew install python3

brew link python3

sudo python3 -m pip install xxx
// or `sudo python3 -m pip install -r requirements.txt`