# _*_ coding:utf-8 _*_import numpy as npimport matplotlib.pyplot as pltx = np.arange(-5, 5, 0.1)y = np.sin(x)plt.plot(x, y)plt.show()

I am trying to import matplotlib like so:import matplotlib.pyplot as pltFor this I have installed matplotlib using.python -m pip install -U pip setuptoolspython -m pip install matplotlibAlthough the basic_example.py from the examples worked, it suddenly stopped running along with all other files with matplotlib giving me the below error:File "matplotlib.py", line 2, in <module>  import matplotlib.pyplot as plt # pyplot module.ImportError: No module named pyplot`I tried to check if the module is still there, and it seems to be. What could be possibly wrong?Requirement already satisfied: matplotlib in c:\python27\lib\site-packagesRequirement already satisfied: numpy>=1.6 in c:\python27\lib\site-packages (from matplotlib)Requirement already satisfied: python-dateutil in c:\python27\lib\site-packages (from matplotlib)Requirement already satisfied: cycler in c:\python27\lib\site-packages (from matplotlib)Requirement already satisfied: pyparsing!=2.0.4,!=2.1.2,>=1.5.6 in c:\python27\lib\site-packages (from matplotlib)Requirement already satisfied: pytz in c:\python27\lib\site-packages (from matplotlib)Requirement already satisfied: six>=1.5 in c:\python27\lib\site-packages (from python-dateuti

Python 2.7 tries to find modules in the current working directory first, before
 going into the installed packages, so because you named your test file "matplotlib.py", 
it will interpret it as the matplotlib package. Rename your test file to something else, and it should be fine