What is keyword.iskeyword() in Python?

Overview

Python is a high-level programming language that provides functionalities for several operations. The keyword module comes with various methods to manipulate keywords.

The function keyword.iskeyword() checks if a string is a valid keyword in Python.

Syntax

keyword.iskeyword(x)

Parameters

  • x: This is the specified string that is passed as a parameter to check if it is a valid keyword or not. This parameter is required.

Return value

This function returns the Boolean value True if x is a valid keyword. Otherwise, it returns False.

Example

#import module
import keyword
#intialize test strings
string1 = 'import'
string2 = 'no'
string3 = 'from'
string4 = 'val'
string5= 'as'
#check for valid keywords
print(string1,': ',keyword.iskeyword(string1))
print(string2,': ',keyword.iskeyword(string2))
print(string3,': ',keyword.iskeyword(string3))
print(string4,': ',keyword.iskeyword(string4))
print(string5,': ',keyword.iskeyword(string5))

Explanation

  • Line 2: We import the keyword module.
  • Lines 5 to 9: We initialize test strings. Some are reserved keywords in Python.
  • Lines 12 to 16: We test to see whether the strings are valid keywords or not.

In the output, the test string is first printed. True is printed if it is a valid keyword. Otherwise, False is printed.

Free AI Mock Interviews
Coding Interview
Coding PatternsFree Interview
Gain insights and practical experience with coding patterns through targeted MCQs and coding problems, designed to match and challenge your expertise level.
System Design
You TubeFree Interview
Learn to design a video streaming platform like YouTube by tackling functional and non-functional requirements, core components, and high-level to detailed design challenges.

Free Resources

License: Creative Commons-Attribution-ShareAlike 4.0 (CC-BY-SA 4.0)