AmigaOS Manual: Reserved Python Words

Python has 34 keywords that have a predefined meaning and thus they cannot be used as a variable name. The keywords are:

Keyword	Description
and	A logical operator
as	Creates an alias
assert	Used for debugging. Raises an AssertionError exception with a specified error message if the supplied condition is False.
break	Exits loop
class	Defines a class
continue	Terminates the current loop iteration and begins the next one
def	Defines a function
del	Deletes an object
elif	A short for "else if"
else	Defines actions that are executed when if condition is False. See if. When used with exception handler, defines actions that are executed when there there was no error. See try.
except	Defines an error handler for an exception handler. See try.
exec	Executes the supplied Python code
False	A boolean value
finally	Defines actions for exception handler that are executed always. See try.
for	Creates a for loop
from	Imports a part of a module
global	Declares a global variable
if	Defines actions that are executed when if condition is True.
import	Imports a module
in	Checks if a value is present in an array
is	Tests if two values are equal
lambda	Defines an anonymous function
None	Defines a null value
not	A logical operator
or	A logical operator
pass	Does nothing, a null statement
print	Prints a message to the screen
raise	Raises an exception
return	Exits a function and returns a value
True	A boolean value
try	Defines an exception handler (tests a block of code for errors). See except, finally, and else.
while	Creates a while loop
with	Manages external resources
yield	Exits a generator function and returns a value

All the keywords except False, None, and True are in lowercase and they must be written as they are.