A keyword is a “reserved word” by the language which convey a special meaning to the interpreter. It may be a command or a parameter. it is a word that cannot be used as a variable name, function names, or any other identifiers in the program .
Python keywords are some words that convey special meaning. Examples of keywords registered by python are as follow:
in python there is an inbuilt module
keyword which handles certain operations related to keywords. there is a function too
iskeyword() which is used to check if a string is keyword or not. Returns true if a string is keyword, else returns false.
let's try to write a code that tell us if our string is a keyword or not.
# we need to import "keyword" for keyword operations import keyword # state the list of all string we want to test str_test = ["in", "while", "loop", "break", "evening", "elif", "assert", "maxwizard", "lambda", "else", "map"] for i in range(len(str_test)): # checking which are keywords if keyword.iskeyword(str_test[i]): print(str_test[i] + " is python keyword") else: # if it is false then write print(str_test[i] + " is not a python keyword")
in is python keyword while is python keyword loop is not a python keyword break is python keyword evening is not a python keyword elif is python keyword assert is python keyword maxwizard is not a python keyword lambda is python keyword else is python keyword map is not a python keyword
But what if you are working how will you make sure you don't use all this keywords as variable? well it might be a difficult task to remember all while assigning variable names. Hence a function
kwlist() is provided in “keyword” module which prints all the 33 python keywords for you here is how to print it below.
#Python code on how iskeyword() works # importing "keyword" for keyword operations import keyword # printing all keywords at once using "kwlist()" print ("The list of keywords is below : ") print (keyword.kwlist)
The list of keywords is : ['False', 'None', 'True', 'and', 'as', 'assert', 'break', 'class', 'continue', 'def', 'del', 'elif', 'else', 'except', 'finally', 'for', 'from', 'global', 'if', 'import', 'in', 'is', 'lambda', 'nonlocal', 'not', 'or', 'pass', 'raise', 'return', 'try', 'while', 'with', 'yield']
kwlist will return the list of all 33 keywords in python.