I am literally in love with Pandas, just like I love panda animals. Pandas provide excellent data structure(dataframe) for manipulation, analysing and cleaning the data. It supports data in any format and give us in a nice table like structure. With the Dataframe you can manipulate data however you want. The plotting of data also becomes easier, to apply some statistics on data such as mean, standard deviation etc are just one line code. Converting the datarame into csv, excel, json is super easy. It makes life very very easier of Machine Learning and Data Science developers.

The built in function which helps to provide the insight

It's basically a necessary package for anyone involved in Data Science/Analytics using Python.