Question: Python has built-in string validation methods for basic data. It can check if a string is composed of alphabetical characters, alphanumeric characters, digits, etc. str.isalnum()
Python has built-in string validation methods for basic data. It can check if a string is composed of alphabetical characters, alphanumeric characters, digits, etc.
str.isalnum() This method checks if all the characters of a string are alphanumeric (a-z, A-Z and 0-9). >>> print 'ab123'.isalnum() True >>> print 'ab123#'.isalnum() False str.isalpha() This method checks if all the characters of a string are alphabetical (a-z and A-Z). >>> print 'abcD'.isalpha() True >>> print 'abcd1'.isalpha() False str.isdigit() This method checks if all the characters of a string are digits (0-9). >>> print '1234'.isdigit() True >>> print '123edsd'.isdigit() False str.islower() This method checks if all the characters of a string are lowercase characters (a-z). >>> print 'abcd123#'.islower() True >>> print 'Abcd123#'.islower() False str.isupper() This method checks if all the characters of a string are uppercase characters (A-Z). >>> print 'ABCD123#'.isupper() True >>> print 'Abcd123#'.isupper() False
Assignment Instructions
1. Write a Python program that performs the following tasks:
2. Read from the console an arbitrary string S of length less than 50 characters.
3. In the first output line, print True if S has any alphanumeric characters. Otherwise, print False.
4. In the second line, print True if S has any alphabetical characters. Otherwise, print False.
5. In the third line, print True if S has any digits. Otherwise, print False.
6. In the fourth line, print True if S has any lowercase characters. Otherwise, print False.
7. In the fifth line, print True if S has any uppercase characters. Otherwise, print False.
8. Develop Python code that implements the program requirements.
Step by Step Solution
There are 3 Steps involved in it
Get step-by-step solutions from verified subject matter experts
