Renaming DataFrame Columns Using Dictionaries & Lists

Python

Data Preprocessing

Here we have two examples of how to rename columns in a Pandas DataFrame.

In the 1st example we rename a single column by using the rename function and passing a dictionary as a parameter containing the current column name as the key and new column name as the value.

In the 2nd example we simply use a list to set the names of all columns in the dataframe.

 1|  #Rename Columns with a Dictionary using rename
 2|  df.rename(columns={'Order_Date' :'Date'},inplace=True)
 3|  
 4|  #Rename all columns with a list
 5|  df.columns = ['col_1','col_2','col_3']

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