LAST UPDATED: JUNE 4, 2020
Python String isaplha()
Python String isaplha()
returns true if a given string consists of alphabets only.
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String isalpha()
is an inbuilt method for string handling.
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It returns true only if all characters of a string are alphabets(both uppercase and lowercase) only.
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One thing to note is whitespace is not considered as an alphabet; thus if there is a whitespace in string then this method returns false for that string.
Python String isalpha()
: Syntax
Below we have a basic syntax of String isalpha()
in Python:
string.isalpha()
Note: In the above syntax string denotes the string variable on which isalpha()
method will be applied.
Python String isalpha()
: Parameters
From the syntax it is clear that this method does not take any parameters; if any parameter will be passed then it will raise an error.
Python String isalpha()
: Returned Values
This method returns true if all characters of a string are Alphabets.
- If a string does not contain any alphabet or if the string contains special characters or numerical characters; then this method will return false.
In the case of whitespace, this method also returns false.
Python String isalpha()
: Basic Example
Below we have an example to show the working of String isalpha()
function:
string = "HelloStudyTonight"
string2 = "Hello StudyTonight"
print("It returns true because string contains alphabets only:")
print("String=", string)
print(string.isalpha())
print("It will return false as it contains alphabets and one space:")
print("String=", string2)
print(string2.isalpha())
The Output will be:
It returns true because string contains alphabets only:
String= HelloStudyTonight
True
It will return false as it contains alphabets and one space:
String= Hello StudyTonight
False
Time For an Example!
Let us see Live Example which is given below where we use isalpha()
method in different ways:
Summary
In this tutorial, we discussed isalpha()
method with its basic syntax, Returned Values, and Live example.