Python script not executing (No module named APNSWrapper)

In the terminal I run this command:

Python pnot.py

I get the following error:

Traceback (most recent call last):
  File "pnot.py", line 1, in <module>
    from APNSWrapper import *
ImportError: No module named APNSWrapper

I have tried to install the module:

pip install APNSWrapper==0.6.1

Requirement already satisfied (use --upgrade to upgrade): APNSWrapper==0.6.1 in /Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages
Requirement already satisfied (use --upgrade to upgrade): docutils>=0.3 in /Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages (from APNSWrapper==0.6.1)
Cleaning up...

I have tried to install APNS:

Pip install apns 

I get the following error:

Downloading/unpacking apns
  Downloading apns-1.1.2.tar.gz
  Running setup.py egg_info for package apns

Installing collected packages: apns
  Running setup.py install for apns
    error: /Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/__pycache__/apns.cpython-33.pyc: Permission denied
    Complete output from command /Library/Frameworks/Python.framework/Versions/3.3/bin/python3.3 -c "import setuptools;__file__='/private/var/folders/8g/6w73vzqs04b6f1cq8m8pyswc0000gn/T/pip_build_samiesyed/apns/setup.py';exec(compile(open(__file__).read().replace('rn', 'n'), __file__, 'exec'))" install --record /var/folders/8g/6w73vzqs04b6f1cq8m8pyswc0000gn/T/pip-3yfn_n-record/install-record.txt --single-version-externally-managed:
    running install

running build

running build_py

creating build

creating build/lib

copying apns.py -> build/lib

running install_lib

copying build/lib/apns.py -> /Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages

byte-compiling /Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/apns.py to apns.cpython-33.pyc

error: /Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/site-packages/__pycache__/apns.cpython-33.pyc: Permission denied

----------------------------------------
Cleaning up...
Command /Library/Frameworks/Python.framework/Versions/3.3/bin/python3.3 -c "import setuptools;__file__='/private/var/folders/8g/6w73vzqs04b6f1cq8m8pyswc0000gn/T/pip_build_samiesyed/apns/setup.py';exec(compile(open(__file__).read().replace('rn', 'n'), __file__, 'exec'))" install --record /var/folders/8g/6w73vzqs04b6f1cq8m8pyswc0000gn/T/pip-3yfn_n-record/install-record.txt --single-version-externally-managed failed with error code 1 in /private/var/folders/8g/6w73vzqs04b6f1cq8m8pyswc0000gn/T/pip_build_s/apns
Storing complete log in /Users/s/.pip/pip.log

script code:

from APNSWrapper import *

wrapper = APNSNotificationWrapper('cert.pem', True)
for token in ['xxxxxxx']:
    token = binascii.unhexlify(token)
    apn = APNSNotification()
    apn.token(token)
    alert = APNSAlert()
    alert.body('hello world')
    apn.alert(alert)
    apn.sound()
    wrapper.append(apn)
wrapper.notify()

This is really frustrating me, not sure why the script is not executing.

Answer

Most likely pip and python point to different Python installations. One might be from package manager, one might be from the system defaults.

You can find this out by doing commands

which python

which pip

Probably pip installs packages against some other python installation you are trying to use.

The solution to the problem, no matter how it has manifested itself, is to use virtualenv environments for your Python package installations. virtualenv creates a self-contained folder containing the python interpreter and package installations, which you can wipe clean and rebuild in the case of problems.

First install virtualenv.

Then do:

 virtualenv venv   # Create virtualenv installation in folder called venv
 source venv/bin/activate  # Modify your shell and PATH to use python from venv/bin/python
 pip install apns  # Installs apns in venv/lib
 python pnot.py   # Now it runs your script using venv/bin/python interpreter 
 # and packages installed in venv/lib/python2.7

More information about python and virtualenv installations

• http://opensourcehacker.com/2012/09/16/recommended-way-for-sudo-free-installation-of-python-software-with-virtualenv/