Python – import pymongo works in Python interpreter but not script

mongodbpymongopython

I first installed pymongo using easy_install, that didn't work so I tried with pip and it is still failing.

This is fine in the terminal:

Macintosh:etc me$ python
Python 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 14:13:39) 
[GCC 4.0.1 (Apple Inc. build 5493)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import pymongo
>>>

But on line 10 of my script

import pymongo

throws the following error:

File "test.py", line 10, >in <module>
import pymongo
ImportError: No module named pymongo

I'm using the standard Lion builds of Apache and Python. Is there anybody else who has experienced this?

Thanks

EDIT: I should also mention that during install it throws the following error

Downloading/unpacking pymongo
Downloading pymongo-2.1.1.tar.gz (199Kb): 199Kb downloaded
Running setup.py egg_info for package pymongo

Installing collected packages: pymongo
Running setup.py install for pymongo
building 'bson._cbson' extension
gcc-4.0 -fno-strict-aliasing -fno-common -dynamic -arch ppc -arch i386 -g -O2 -DNDEBUG -g -O3 -Ibson -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c bson/_cbsonmodule.c -o build/temp.macosx-10.3-fat-2.7/bson/_cbsonmodule.o
unable to execute gcc-4.0: No such file or directory
command 'gcc-4.0' failed with exit status 1

**************************************************************
WARNING: The bson._cbson extension module could not
be compiled. No C extensions are essential for PyMongo to run,
although they do result in significant speed improvements.

If you are seeing this message on Linux you probably need to
install GCC and/or the Python development package for your
version of Python. Python development package names for popular
Linux distributions include:

RHEL/CentOS: python-devel
Debian/Ubuntu: python-dev

Above is the ouput showing how the compilation failed.
**************************************************************

building 'pymongo._cmessage' extension
gcc-4.0 -fno-strict-aliasing -fno-common -dynamic -arch ppc -arch i386 -g -O2 -DNDEBUG -g -O3 -Ibson -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c pymongo/_cmessagemodule.c -o build/temp.macosx-10.3-fat-2.7/pymongo/_cmessagemodule.o
unable to execute gcc-4.0: No such file or directory
command 'gcc-4.0' failed with exit status 1

**************************************************************
WARNING: The pymongo._cmessage extension module could not
be compiled. No C extensions are essential for PyMongo to run,
although they do result in significant speed improvements.

If you are seeing this message on Linux you probably need to
install GCC and/or the Python development package for your
version of Python. Python development package names for popular
Linux distributions include:

RHEL/CentOS: python-devel
Debian/Ubuntu: python-dev

Above is the ouput showing how the compilation failed.
**************************************************************

And then goes on to say

Successfully installed pymongo
Cleaning up...
Macintosh:etc me$

Very odd.

My sys.path in script is returned as:

['/Library/WebServer/Documents/', '/Library/Python/2.7/site-packages/tweepy-1.7.1-py2.7.egg', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages', '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload', '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC', '/Library/Python/2.7/site-packages']

And in interpreter:

['', '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLObject-1.2.1-py2.7.egg', '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/FormEncode-1.2.4-py2.7.egg', '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/setuptools-0.6c12dev_r88846-py2.7.egg', '/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-1.1-py2.7.egg', '/Library/Python/2.7/site-packages/tweepy-1.7.1-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']

Best Answer

Found it! Required a path append before importing of the pymongo module

sys.path.append('/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages')
import pymongo

Would ideally like to find a way to append this to the pythonpath permanently, but this works for now!

Related Solutions

Python – What sets up sys.path with Python, and when

Most of the stuff is set up in Python's site.py which is automatically imported when starting the interpreter (unless you start it with the -S option). Few paths are set up in the interpreter itself during initialization (you can find out which by starting python with -S).

Additionally, some frameworks (like Django I think) modify sys.path upon startup to meet their requirements.

The site module has a pretty good documentation, a commented source code and prints out some information if you run it via python -m site.

Python – Mac – Python – import error: “No module named site”

From what I can tell you have three versions of Python on your system.

The one that comes with OSX /Library/Frameworks/Python.framework/Versions/2.7/
Python 2.7 from python.org /Library/Python/2.7/site-packages
Python 3.4 from python.org

pip is installed against the Python 2.7 version you downloaded (the one you see in your Applications folder), unfortunately the default Python for your shell is the one that's bundled with OSX, and there is no pip installed there.

IDLE is also bundled with the Python that you downloaded, which is why it keeps telling you that pip is installed, but it doesn't work from the shell.

Since you are probably using the Python downloaded from python.org as your "primary" Python (after all, its the one with IDLE that you are using), you need to set your shell environment to point to this Python as default.

The easiest way to do that is to add a variable in .bashrc that creates an alias python and points it to the right binary. To do that, add this line to /Users/yourusername/.bashrc - files with . are hidden by default, so you'll have to write the entire file name in the command line to open it. Add the following line:

alias python=/Library/Python/2.7/python

Save the file and then close all terminal windows and open it again. Now type pip and it should work correctly, and then you can proceed to installing requests.

For future reference, try to stick with one version of Python. I personally ignore the bundled version and use the one from brew, but you can stick to the Python downloaded from python.org.

Best Answer

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Python – What sets up sys.path with Python, and when

Python – Mac – Python – import error: “No module named site”

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