isidentifier() method in Python
The isidentifier() method returns True if the string is a valid identifier, and False when it only contains. If a string is only made up of alphanumeric letters (a-z), (0-9), or underscores (_), it is considered a valid identifier.
Syntax
string.isidentifier()
No Parameters
The following example shows, the string is identifier or not.
Example
a = "Hello" b = "Hello001" c = "01Hello" d = "Hi Hello" print(a.isidentifier()) print(b.isidentifier()) print(c.isidentifier()) print(d.isidentifier())
Output
True True False False