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For Loop statement


Executes a sequence(list ,triple or string) of statements multiple time .


Example For loop statement

#first example
Food  = ['Vegetables ', 'Fruit',  'Lean meats']
for  Food in Foods:        # Second Example
   print 'Current food :', food

print "Good meal!"


Result
Current food:Vegetables 
Current food:Fruit
Current food:Lean meats
Good meal!



Range() functions

Example

for x in range(3):
  print(x)

Note:0 to 3 is not visible but 0 to 2 is visible .

Else statement with loop

lower = 20
upper = 50
# uncomment the following lines to take input from the user
#lower = int(input("Enter lower range: "))
#upper = int(input("Enter upper range: "))
print("Prime numbers between",lower,"and",upper,"are:")
for num in range(lower,upper + 1):
   for i in range(2,num):
      if (num % i) == 0:
         break
      else:
         print '%d is a prime number \n' %(num),

Result:
Executing the program....
$python2.7 main.py

('Prime numbers between', 20, 'and', 50, 'are:')
21 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
23 is a prime number 
25 is a prime number 
25 is a prime number 
25 is a prime number 
27 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
29 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
31 is a prime number 
33 is a prime number 
35 is a prime number 
35 is a prime number 
35 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
37 is a prime number 
39 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
41 is a prime number 
43 is a prime number 
43 is a prime number 
43 is a prime number 
43 is a prime number 
43 is a prime number 
43 is a prime number 
43 is a prime number 
43 is a prime number 
43 is a prime number 
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43 is a prime number 
43 is a prime number 
43 is a prime number 
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43 is a prime number 
43 is a prime number 
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43 is a prime number 
43 is a prime number 
43 is a prime number 
43 is a prime number 
43 is a prime number 
43 is a prime number 
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43 is a prime number 
43 is a prime number 
43 is a prime number 
45 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
47 is a prime number 
49 is a prime number 
49 is a prime number 
49 is a prime number 
49 is a prime number 
49 is a prime number