Rename first row in a CSV file

[James_S]

I don't know what I have done wrong. I want to rename the first row of the table:

1 2 3 4 5 6 7 8 9

renamed_df = pd.read_csv('my_data.csv')   # Change column names renamed_df.rename(columns={'AA': 'aaa', 'BB': 'bbb', 'CC': 'ccc', 'DD': 'ddd', 'EE': 'eee'}, inplace=True)   # Save the renamed DataFrame to a new CSV file renamed_df.to_csv('renamed_my_data.csv', index=False)   renamed_df.head()

Yoriz write Dec-17-2023, 01:19 AM:
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[James_S]

Input (my_data.csv):

39, AA, BB, CC, DD, EE
40, 111,222,333,444,555
41,666,777,888,999,000
42,121,232,343,454,565
43,244,355,366,377,388

Expected output (renamed_my_data.csv)

39, aaa, bbb, ccc, ddd, eee
40, 111,222,333,444,555
41,666,777,888,999,000
42,121,232,343,454,565
43,244,355,366,377,388

[deanhystad]

Your first column name is " AA", not "AA". You need to tell pandas that there may be extra whitespace

1	df = pd.read_csv('my_data.csv', skipinitialspace=True)

[James_S]

deanhystad,

Thank you. It works.