Python for loop - Fullstackadda

for loop is used for iterating over a sequences. In python it works in the same way as it works in other programming languages. Python for loop

With the for loop we can execute set of instructions , once for each item in a list, tuple, set etc.

Syntax:

for value in sequence:
    # statement(s)

Example:

sports = ["cricket", "football", "chess"]
for x in sports:
  print(x)

cricket
football
chess

Example 2:

Loop through the letters

for x in "Fullstackadda":
  print(x)

F
u
l
l
s
t
a
c
k
a
d
d
a

Example 3:

marks = [35, 80, 75, 48, 59]
for x in marks:
  print(x)

Python range() function:

range() is a built-in function of Python. It is used when a user needs to perform an action for a specific number of times.

In simple terms, range() allows user to generate a series of numbers within a given range.

range() takes mainly three arguments.

start: integer starting from which the sequence of integers is to be returned
stop: integer before which the sequence of integers is to be returned.
The range of integers end at stop – 1.
step: integer value which determines the increment between each integer in the sequence

Example:

Example using range() function

for i in range(10):
	print(i, end=" ")

0 1 2 3 4 5 6 7 8 9

Example 2:

Example using custom selection range.

for i in range(5, 10):
	print(i, end=" ")

5 6 7 8 9

Note: In the above code start point is 5(start = 0) and the stop point is 10(stop = 10). Indexing starts from “0” so 10 is excluding in the output.

For loop is used for iterating over a sequences.
range() is a built-in function of Python. It is used when a user needs to perform an action for a specific number of times.