Hi Zhen,

Nice article on tips/tricks to use on Python.

Just a point from my side:-

For getting, dimension/ column datatype information, we could look at the following command:-

dataframe.info()

We can get a lot of information about the pandas dataframe(number of missing/non-missing rows for each column, data type information, heap size occupied by the dataframe object in the memory, Index information).

It gives a quick description of the dataframe in python.