python►a-basics

Python-a06-Conditions and Boolean

This article shows the examples of Conditions and Boolean in python

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
## basic
    if True:
        print('Conditional was true') # Conditional was true
        
    if False:
        print('Conditional was true') #
       
# Comparisons
    # Equal:            ==
    # Not Equal:        !=
    # Greater Than:     >
    # Less Than:        <
    # Greater or Equal: >=
    # Less or Equal:    <=
    # Object Identity:  is
    
    language = 'Python'
    if language == 'Python':
        print('Conditional was true') # Conditional was true
    else:
        print('No match') 
        
    num = [1,2,3]
    num_two = [1,2,3]
    num_three = num
    print(num is num_two) # False
    print(num is num_three) # True
    print(id(num))
    print(id(num_two))
    
    
# if elif else        
    language = 'Python'
    if language == 'Python':
        print('Conditional was true')
    elif language == 'Java':
        print('Language is Java')    
    else:
        print('No match') 

# booleans operators: and or not
    user = 'Admin'
    logged_in = True
    
    if user == 'Admin' and logged_in:
        print('Admin Page')
    else:
        print('Bad')
            
            
    if user == 'Admin' or logged_in:
        print('Admin Page')
    else:
        print('Bad')      
          
              
    if not logged_in:
        print('Please Log in')
    else:
        print('Welcome')
        
# False Values:
    # False
    # None
    # 0 of any numeric type
    # Any empty sequence, for example: '', (), []
    # Any empty mapping, for example: {}
    
    condition = False
    if condition:
        print('Evaluated to True')
    else:
        print('Evaluated to False')