问题
I am new to python and I am working on a graph problem and I want to draw this graph to have a better understanding of it. I learnt that matplotlib module is supposed to be imported for this but I dont know how to add it to the project.(I am a java developer and It is pretty much like adding jar to your classpath)
When I try doing
import matplotlib
I get the following error:
File "/Library/Python/2.7/site-packages/networkx-1.7rc1-py2.7.egg/networkx/drawing/nx_pylab.py", line 114, in draw
raise ImportError("Matplotlib required for draw()")
ImportError: Matplotlib required for draw()
ImportError: No module named matplotlib.pyplot
Can anyone help me with that?Do I need to download anything to make it run as in the module?
回答1:
module: new
As David Robinson points out in a comment on another answer you may have posted an incomplete error message, in which case it is possible that the inbuilt module new is being shadowed by new.py in the gis module. - if that is the case the suggested fix is to rename the gis version.
Incomplete Matplotlib install
Alternatively, given your output you may be trying to import networkx and you don't seem to have matplotlib (correctly) installed.
Could you make sure that matplotlib is correctly installed, either if you're on Ubuntu by using
sudo apt-get install python-matplotlib
or if you prefer pip or easy_install,
pip install matplotlib
or
easy_install matplotlib
回答2:
I had the same problem solved - not only for this package - using instead of pip install :
sudo apt-get install python-matplotlib
回答3:
If you use windows, Open the command prompt and type
python -m pip install matplotlib
For linux users , type this
sudo apt-get install python-matplotlib
回答4:
work on the cv virtual environment and then use the command and execute your script in the virtual environment using source ~/.profile workon cv
来源：https://stackoverflow.com/questions/11815538/how-to-import-matplotlib-in-python