Python Tutorial ( PDFDrive )

else:
print "Line 3 - a and b are true"
print "Line 3 - Either a is not true or b is not true"
if ( a or b ):
print "Line 4 - Either a is true or b is true or both are true"
else:
print "Line 4 - Neither a is true nor b is true"
if not( a and b ):
else:
print "Line 5 - Either a is not true or b is not true"
print "Line 5 - a and b are true"
When you execute the above program, it produces the following result:
Line 1 - a and b are true
Line 2 - Either a is true or b is true or both are true
Line 3 - Either a is not true or b is not true
Line 4 - Either a is true or b is true or both are true
Line 5 - Either a is not true or b is not true
Python Membership Operators:
In addition to the operators discussed previously, Python has membership operators, which test for membership
in a sequence, such as strings, lists or tuples. There are two membership operators explained below:
Operator Description
Example
In
not in
Evaluates to true if it finds a variable in the specified sequence and false
otherwise.
Evaluates to true if it does not finds a variable in the specified sequence and
false otherwise.
x in y, here in results
in a 1 if x is a member
of sequence y.
x not in y, here not
in results in a 1 if x is
not a member of
sequence y.
Example:
Try following example to understand all the membership operators available in Python programming language:
#!/usr/bin/python
a = 10
b = 20
list = [1, 2, 3, 4, 5 ];
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