How do I show my pandas dataframe that I have in my jupyter notebook so that I can ask a question on stack exchange/stack overflow?
df.head().to_dict()


will give something which looks like


  {'x': {0: 1, 1: 200, 2: 4, 3: 5, 4: 6}, 'y': {0: 4, 1: 5, 2: 10, 3: 24, 4: 4}}


you can then add pd.DataFrame() like so

pd.DataFrame({'x': {0: 1, 1: 200, 2: 4, 3: 5, 4: 6}, 
              'y': {0: 4, 1: 5, 2: 10, 3: 24, 4: 4}})


This will allow anybody else just to copy and paste into their editor and run your code.

Here is a really detailed discussion on what you are describing
https://stackoverflow.com/a/20159305/6646710