w3resource

Pandas: Check whether only lower case or upper case is present in a given column of a DataFrame

Pandas: String and Regular Expression Exercise-12 with Solution

Write a Pandas program to check whether only lower case or upper case is present in a given column of a DataFrame.

Sample Solution:

Python Code :

import pandas as pd
df = pd.DataFrame({
    'company_code': ['ABCD','EFGF', 'hhhh', 'abcd', 'EAWQaaa'],
    'date_of_sale ': ['12/05/2002','16/02/1999','25/09/1998','12/02/2022','15/09/1997'],
    'sale_amount': [12348.5, 233331.2, 22.5, 2566552.0, 23.0]})

print("Original DataFrame:")
print(df)
print("\nIs lower (company_code)?")
df['company_code_ul_cases'] = list(map(lambda x: x.islower(), df['company_code']))
print(df)
print("\nIs Upper (company_code)?")
df['company_code_ul_cases'] = list(map(lambda x: x.isupper(), df['company_code']))
print(df)

Sample Output:

Original DataFrame:
  company_code date_of_sale   sale_amount
0         ABCD    12/05/2002      12348.5
1         EFGF    16/02/1999     233331.2
2         hhhh    25/09/1998         22.5
3         abcd    12/02/2022    2566552.0
4      EAWQaaa    15/09/1997         23.0

Is lower (company_code)?
  company_code          ...          company_code_ul_cases
0         ABCD          ...                          False
1         EFGF          ...                          False
2         hhhh          ...                           True
3         abcd          ...                           True
4      EAWQaaa          ...                          False

[5 rows x 4 columns]

Is Upper (company_code)?
  company_code          ...          company_code_ul_cases
0         ABCD          ...                           True
1         EFGF          ...                           True
2         hhhh          ...                          False
3         abcd          ...                          False
4      EAWQaaa          ...                          False

[5 rows x 4 columns]

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Pandas program to check whether only numeric values present in a given column of a DataFrame.
Next: Write a Pandas program to check whether only proper case or title case is present in a given column of a DataFrame.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Become a Patron!

Follow us on Facebook and Twitter for latest update.

It will be nice if you may share this link in any developer community or anywhere else, from where other developers may find this content. Thanks.

https://198.211.115.131/python-exercises/pandas/string/python-pandas-string-exercise-12.php