Python: ImportError: No module named mandrill

I installed mandrill using pip:

    (venv)Jhons-MacBook-Pro:venv jhonjairoroa87$ pip install mandrill

I got this result:

    Downloading/unpacking mandrill
    Downloading mandrill-1.0.57.tar.gz
    Running setup.py (path:/private/var/folders/x3/st96cn215h915kqwlcrmtspw0000gn/T/pip_build_jhonjairoroa87/mandrill/setup.py) egg_info for package mandrill
    Requirement already satisfied (use --upgrade to upgrade): requests>=0.13.2 in /usr/local/lib/python2.7/site-packages (from mandrill)
    Requirement already satisfied (use --upgrade to upgrade): docopt==0.4.0 in /usr/local/lib/python2.7/site-packages (from mandrill)
    Installing collected packages: mandrill
    Running setup.py install for mandrill
    changing mode of build/scripts-2.7/mandrill from 644 to 755
    changing mode of build/scripts-2.7/sendmail.mandrill from 644 to 755
    changing mode of /usr/local/bin/mandrill to 755
    changing mode of /usr/local/bin/sendmail.mandrill to 755
    Successfully installed mandrill
    Cleaning up...

But when I try to use it, fails:

    (venv)Jhons-MacBook-Pro:venv jhonjairoroa87$ python
    Python 2.7.6 (default, Sep  9 2014, 15:04:36)
    [GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.39)] on darwin
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import mandrill
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
    ImportError: No module named mandrill
    >>>
    >>> import sendmail.mandrill
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
    ImportError: No module named sendmail.mandrill

I solved it by uninstalling it

     pip uninstall mandrill

and reinstalling it using the python -m option:

    sudo python -m pip install mandrill

Now it works perfectly.

    (venv)Jhons-MacBook-Pro:python_mandrill jhonjairoroa87$ python
    Python 2.7.6 (default, Sep  9 2014, 15:04:36)
    [GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.39)] on darwin
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import mandrill
    >>>

Reference:
http://stackoverflow.com/questions/28032356/importerror-no-module-named-mandrill/28032480