how to given column names in dataframe code example

Example 1: python return column names of pandas dataframe

# Basic syntax:
your_dataframe.columns

# Note, if you want the column names as a list, just do:
list(your_dataframe.columns)

Example 2: give column names to a dataframe

>gapminder.columns = ['country','year','population',
                     'continent','life_exp','gdp_per_cap']