UpperCasePandaDF.py

# Import Pandas Library
import pandas as pd

# Custom Exception Added
class AlreadyUpperCase(Exception):
    def __init__(self):
        super().__init__("DataFrame Provided Is Already In Upper Case")
    pass


def upperCaseDF(data):
    # Check if the data provided is Pandas DF 
    if(type(data) != pd.DataFrame):
        raise ValueError("The Data Provided Is Not a Pandas DataFrame")
    for j in data.itertuples(index=False, name=None):
        for x in j:
            # If Data Type is str then only apply Upper Case
            if(type(x) == str):
                if(x != x.upper()):
                    x = x.upper()
                else:
                    raise AlreadyUpperCase

										
# Test Call
upperCaseDF(12)