Python Identifiers
A Python identifier
is a name used to identify a variable, function, class, module or other object.
An identifier starts with a letter A to Z or a to z or an underscore (_)
followed by zero or more letters, underscores and digits (0 to 9).
The python does not allow punctuation characters such
as @, $, and % within identifiers. Python is a case
sensitive programming language. Thus, Manpower and manpower are two different identifiers in
Python.
Naming Conventions
for Python Identifiers
Class names start with an uppercase letter. All other
identifiers start with a lowercase letter.
Starting an
identifier with a single leading underscore indicates that the identifier is
private.
Starting an
identifier with two leading underscores indicates a strongly private
identifier.
If the identifier
also ends with two trailing underscores, the identifier
is a language-defined special name.
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