Python String isidentifier() Method
Python String isidentifier() method is used to check whether a string is a valid identifier or not. The method returns True if the string is a valid identifier else returns False.
Syntax:
string.isidentifier()
Parameters:
The method does not take any parameters
Return Value:
The method can return one of the two values:
- True: When the string is a valid identifier.
- False: When the string is not a valid identifier.
Example: How isidentifier() works
Python3
# Python code to illustrate # the working of isidentifier() # String with spacesstring = "Geeks for Geeks"print(string.isidentifier()) # A Perfect identifierstring = "GeeksforGeeks"print(string.isidentifier()) # Empty stringstring = ""print(string.isidentifier()) # Alphanumerical stringstring = "Geeks0for0Geeks"print(string.isidentifier()) # Beginning with an integerstring = "54Geeks0for0Geeks"print(string.isidentifier()) |
Output:
False True False True False
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