df rename multiple columns code example

Example 1: rename multiple pandas columns with list

for j in range(len(df.columns)):
    old = df.columns[j]
    new = new_columns[j]
    df = df.rename(columns = {old:new})

Example 2: pandas rename multiple columns

# df is a pandas DataFrame

for col_name in df.columns:
  # you can specify conditions if you need 
  # to change the name of some column only
  df = df.rename(columns = {col_name:new_col_name}