change column name df

1df = df.rename(columns={"old_col1": "new_col1", "old_col2": "new_col2"})
2

1import pandas as pd
2data = pd.read_csv(file)
3data.rename(columns={'original':'new_name'}, inplace=True)

1df.rename(columns={"old_col1": "new_col1", "old_col2": "new_col2"}, inplace=True)

1>>> df = pd.DataFrame({"A": [1, 2, 3], "B": [4, 5, 6]})
2>>> df.rename(columns={"A": "a", "B": "c"})
3   a  c
40  1  4
51  2  5
62  3  6
7

1df = pd.DataFrame({"A": [1, 2, 3], "B": [4, 5, 6]})
2
3# Option 1
4df.rename({"A": "a", "B": "c"}, axis=1)
5
6# Option 2
7df.rename(columns={"A": "a", "B": "c"})
8
9# Result
10   a  c
110  1  4
121  2  5
132  3  6

1>>> df.rename({1: 2, 2: 4}, axis='index')
2   A  B
30  1  4
42  2  5
54  3  6
6