how to plot data with all of categorical values in python code example

Example 1: plot categorical data matplotlib

df['colour'].value_counts().plot(kind='bar')

Example 2: how to convert contionous data into categorical data in python

pd.cut(df.Age,bins=[0,2,17,65,99],labels=['Toddler/Baby','Child','Adult','Elderly'])
# where bins is cut off points of bins for the continuous data 
# and key things here is that no. of labels is always less than 1