change one column name in pandas code example
Example 1: change specific column name pandas
df_new = df.rename(columns={'A': 'a'}) #change a from A
Example 2: change name of column pandas
#df.rename() will only return a new df with the new headers
#df = df.rename() will change the heders of the current dataframe
df = df.rename(columns={"old_col1": "new_col1", "old_col2": "new_col2"})
Example 3: rename column pandas
>>> df.rename({1: 2, 2: 4}, axis='index')
A B
0 1 4
2 2 5
4 3 6