8 Rename DF

import pandas as pd

df = pd.DataFrame({'col one':[100, 200], 'col two':[300, 400]})
df

	col one	col two
0	100	300
1	200	400

8.1 `df.rename()` Basic

df.rename({'col one':'col_one', 'col two':'col_two'}, axis='columns')

	col_one	col_two
0	100	300
1	200	400

df2 = pd.DataFrame({'Col A':[100, 200], 'Col B':[300, 400]})
df2

	Col A	Col B
0	100	300
1	200	400

df_variable = pd.DataFrame({"OldName": ["Col A", "Col B"],
                            "NewName": ["A", "B"]})
df_variable

	OldName	NewName
0	Col A	A
1	Col B	B

dict(zip(df_variable["OldName"], df_variable["NewName"]))

{'Col A': 'A', 'Col B': 'B'}

df2.rename(dict(zip(df_variable["OldName"], df_variable["NewName"])), axis = 'columns')

	A	B
0	100	300
1	200	400