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I am new to Python and want to use its plot functionality to create graphs. I am using ubuntu 12.04. I followed the Python installation steps from http://eli.thegreenplace.net/2011/10/10/installing-python-2-7-on-ubuntu/ but when I do
from pylab import * I am getting this error
>>> from pylab import * Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: No module named pylab My Python version is python 2.7. Can anybody tell me what I am missing here?
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PyLab is a Python package that provides us a namespace in Python programming, which is very similar to MATLAB interface, by importing the functions from Python Numpy and Matplotlib Module.
PyLab is a procedural interface to the Matplotlib object-oriented plotting library. Matplotlib is the whole package; matplotlib. pyplot is a module in Matplotlib; and PyLab is a module that gets installed alongside Matplotlib. PyLab is a convenience module that bulk imports matplotlib.
Matplotlib is not a built-in module (it doesn't come with the default python installation) in Python, you need to install it explicitly using the pip installer and then use it. If you looking at how to install pip or if you are getting an error installing pip checkout pip: command not found to resolve the issue.
You'll need to install numpy, scipy and matplotlib to get pylab. In ubuntu you can install them with this command:
sudo apt-get install python-numpy python-scipy python-matplotlib If you installed python from source you will need to install these packages through pip. Note that you may have to install other dependencies to do this, as well as install numpy before the other two.
That said, I would recommend using the version of python in the repositories as I think it is up to date with the current version of python (2.7.3).
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I solved the same problem by installing "matplotlib".
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