Fix ImportError: No module named dateutil.rrule error in MAC 10.8 with Python 2.7.3

When I try to execute python code with import matplotlib, I received following errors:


Traceback (most recent call last):
  File "plotPRREachNode.py", line 6, in
    import matplotlib.pyplot as pl
  File "/Library/Python/2.7/site-packages/matplotlib-1.2.x-py2.7-macosx-10.8-intel.egg/matplotlib/pyplot.py", line 26, in
    from matplotlib.figure import Figure, figaspect
  File "/Library/Python/2.7/site-packages/matplotlib-1.2.x-py2.7-macosx-10.8-intel.egg/matplotlib/figure.py", line 19, in
    from axes import Axes, SubplotBase, subplot_class_factory
  File "/Library/Python/2.7/site-packages/matplotlib-1.2.x-py2.7-macosx-10.8-intel.egg/matplotlib/axes.py", line 19, in
    import matplotlib.dates as mdates
  File "/Library/Python/2.7/site-packages/matplotlib-1.2.x-py2.7-macosx-10.8-intel.egg/matplotlib/dates.py", line 122, in
    from dateutil.rrule import rrule, MO, TU, WE, TH, FR, SA, SU, YEARLY, \
ImportError: No module named dateutil.rrule


The method to solve this error is go to http://labix.org/python-dateutil/#head-2f49784d6b27bae60cde1cff6a535663cf87497b and download the python-dateutil-1.5.tar.gz 

Then untar the file and type in command line:
python setup.py install



That's it, wish this could help.