upper() function in pandas python - Convert the column to uppercase

In this tutorial we will be using upper() function in pandas, to convert the character column of the python pandas dataframe to uppercase.

If the input string is in any case (upper, lower or title) , upper() function in pandas converts the string to upper case.

Lets look it with an Example

Create dataframe:

## create dataframe

import pandas as pd
d = {'Quarters' : ['quarter1','quarter2','quarter3','quarter4'],
     'Description' : ['First Quarter of the year', 'second quarter of the year', 'Third  Quarter of the year', 'FOURTH QUARTER OF THE YEAR']}
df=pd.DataFrame(d)
print df

resultant dataframe will be

# upper function in python to convert the character column to uppercase 

df['upper_desc'] = map(lambda x: x.upper(), df['Description'])
print df

upper() function in pandas converts any case to the uppercase and stores it in the upper_desc column of the dataframe, so the output will be

upper() function in pandas python – Convert the column to uppercase

Create dataframe: