在Windows上找不到通过virtualenv安装的模块

Question

I'm running virtualenv on Windows 7 and I created a virtual environment for python 2.7 and installed some modules but I can't seem to import it.

1) venv\\scripts\\activate

2) pip2 install requests

(I the following message: get Requirement already satisfied (use --upgrade to upgrade): requests in c:\users\dan\desktop\python\bulkphotos\venv\lib\site-packages)

3) when I try to import this on the interactive shell, I get the following error

(venv) C:\Users\Dan\Desktop\Python\bulkphotos>py
Python 2.7.10 (default, May 23 2015, 09:40:32) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import requests
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named requests

4) I've tried searching SO but the other answers seem to be applicable for a mac (eg accidentally installing via sudo). When I do pip2 list, the module is present, so I don't understand why I can't access it.

(venv) C:\Users\Dan\Desktop\Python\bulkphotos>pip2 list
google-api-python-client (1.4.1)
httplib2 (0.9.1)
oauth2client (1.4.12)
pip (7.1.0)
pyasn1 (0.1.8)
pyasn1-modules (0.0.7)
requests (2.7.0)
rsa (3.2)
setuptools (18.0.1)
simplejson (3.8.0)
six (1.9.0)
uritemplate (0.6)
wheel (0.24.0)

(venv) C:\Users\Dan\Desktop\Python\bulkphotos>pip2 show requests
---
Metadata-Version: 2.0
Name: requests
Version: 2.7.0
Summary: Python HTTP for Humans.
Home-page: http://python-requests.org
Author: Kenneth Reitz
Author-email: me@kennethreitz.com
License: Apache 2.0
Location: c:\users\dan\desktop\python\bulkphotos\venv\lib\site-packages
Requires:

(venv) C:\Users\Dan\Desktop\Python\bulkphotos>

Does anyone know how to solve this problem?

EDIT The results of running sys.path on the interactive shell

['', 'C:\\windows\\system32\\python27.zip', 'C:\\Python27\\DLLs', 'C:\\Python27\\lib', 'C:\\Python27\\lib\\plat-win', 'C:\\Python27\\lib\\lib-tk', 'C:\\Python27', 'C:\\Python27\\lib\\site-packages']

The results of running where py and where python

(venv) C:\Users\Dan\Desktop\Python\bulkphotos>where py
C:\Windows\py.exe

(venv) C:\Users\Dan\Desktop\Python\bulkphotos>where python
C:\Users\Dan\Desktop\Python\bulkphotos\venv\Scripts\python.exe
C:\Python27\python.exe
C:\Python34\python.exe

Answer 1

The Windows Python launcher PEP 397 is not aware of the active virtual env. See PEP 486 for details.

Try to launch Python interpreter by executing python instead of py .

Answer 2

I dont know why these packages are not imported,

But you can debug it by viewing your pythonpath using,

python -c "import sys; print sys.path"

You can append optional path to sys.path .