Python 3 Documentation

Python starts index with 0, which means the first element of a list is accessed with index 0.

type() to check the data type of a variable.

For data frames:

  • df.dtypes to check the data types of each column in the data frame.

  • df.info() to check the data types of each column and the number of non-null values.

  • df.describe() to get summary statistics of the numerical columns in the data frame.