python sort order column code example
Example 1: sort columns dataframe
df = df.reindex(sorted(df.columns), axis=1)
Example 2: sort a dataframe
sort_na_first = gapminder.sort_values('lifeExp',na_position='first')
df = df.reindex(sorted(df.columns), axis=1)
sort_na_first = gapminder.sort_values('lifeExp',na_position='first')