The isalpha() method of the String class in Python is a built-in method that checks if a specified argument includes only alphabets (A-Z and/or a-z).
string.isalpha()
The isalpha() method takes no parameters.
isalpha() method returns true if all characters in the string are alphabets. Otherwise, it returns false.
The figure below shows the different return types of the isalpha() method for different arguments:
string = 'Maria'
string.isalpha() #returns true
string = 'Maria04'
string.isalpha() #returns false
string = 'Maria Elijah'
string.isalpha() #returns false
The following program shows how to use the isalpha() method.
# using isalpha()# Given stringstring='_Maria'print(string.isalpha())string1 = 'Maria Elijah'count=0# Iterate the string and check for alphabets# Increment the counter if an alphabet is found# Finally print the resultfor x in string1:if (x.isalpha()) == True:count+=1print(f"The string contains {count} alphabet")
The code above first uses the isalpha() method on the string variable. Next, the code iterates over each character in a string, and uses the isalpha() method to check if the current character is an alphabet or not.