Pandas is wonderful. It's really easy to grab some data, manipulate it, then graph it. It even renders better than lists in ipython.
miniblog.
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Nice post on implementing a datastructure like pandas.Series using Smalltalk reflection:
Wow, Pypy now supports numpy and pandas! https://morepypy.blogspot.co.uk/2017/03/pypy27-and-pypy35-v57-two-in-one-release.html (a major reason for using CPython previously)
Conda is an absolute joy for python. I can read the conda docs, install it and be using pandas before pip has finished installing pandas.