Algorithms For Dummies

TABLE 4-8

Python Membership Operators

Operator

Description

Example

in

Determines whether the value in the left operand 

appears in the sequence found in the right operand

“Hello” in “Hello Goodbye”  

is True

not in

Determines whether the value in the left operand is 

missing from the sequence found in the right operand

“Hello” not in “Hello Goodbye”  

is False

TABLE 4-9

Python Identity Operators

Operator

Description

Example

is

Evaluates to true when the type of the value or 

expression in the right operand points to the same 

type in the left operand

type(2) is int is True

is not

Evaluates to true when the type of the value or 

expression in the right operand points to a different 

type than the value or expression in the left operand

type(2) is not int is False

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