Python String isalpha() Method

In Python, the isalpha() method returns true if all the string characters are alphabets. Otherwise, It returns “False.”

The syntax of the method is: str.isalpha()

Key Points :

• There are no isalpha() function parameters.
• Returns true only if all string characters are alphabets (both upper and lower-case).
• One point to remember is that white space is not an alphabet; thus, if the string includes white space, the method returns false for that string.

Return Value from isalpha()

The isalpha() returns:

• True if all string characters are alphabets (can be both lowercase and uppercase).
• Where there is no alphabet in a string, the string would return false if there are unique characters or numerical characters.

Below is the python program to demonstrate the isalpha() function:

str = "OnlineEducation"; # No space & digit in this string
print (str.isalpha())
str = "The Best Learning Resource for Online Education";
print (str.isalpha())

When we run above the program, the outcome is as follows:

True
False

Working of isalpha()

Developer = "DineshThakur"
if Developer.isalpha() == True:
print("All characters are alphabets")
else:
print("All characters are not alphabets.")

When we run above the program, the outcome is as follows:

All characters are alphabets

Below are several other functions that we can use to work with string in Python 3