Answers for "python reverse for"

2

inverted for python

for i in reversed(range(5)):
    print(i)
Posted by: Guest on September-13-2020
12

python range reverse

When you call range() with three arguments, you can choose not only 
where the series of numbers will start and stop but also how big the 
difference will be between one number and the next.

range(start, stop, step)

If your 'step' is negative and 'start' is bigger than 'stop', then 
you move through a series of decreasing numbers.

for i in range(10,0,-1):
    print(i, end=' ')
# Output: 10 9 8 7 6 5 4 3 2 1
Posted by: Guest on April-24-2020
4

reverse for loop python

# 1.
for i in reversed(range(3)): # output: 	0
    print(i)				 #			1
    						 # 			2
# works with arrays as well , reversed(arr)

# 2.
# another alternative is
arr = [1,2,3]
# note: arr[start : end : step]
for i in arr[::-1]:			 # output:	0
  print(i)					 # 			1
  							 #			2

# 3.
# last alternative i don't recommened!
# note: range(start, end, step)
for i in range(len(arr) - 1, -1 , -1): 	# output: 	0
  print(i)								# 			1
  										# 			2
# read more on range() to understand even better how it works has the same rules as the arrays
Posted by: Guest on June-08-2020
2

python iterate backwards through list

>>> a = ["foo", "bar", "baz"]
>>> for i in reversed(a):
...     print(i)
... 

or

>>> for i, e in reversed(list(enumerate(a))):
...     print(i, e)
Posted by: Guest on December-03-2019
3

reverse function python

# The Reverse operation - Python 3:
Some_List = [1, 2, 3, 4, 1, 2, 6]  
Some_List.reverse()  
print(Some_List)
# Result: [6, 2, 1, 4, 3, 2, 1]
Posted by: Guest on November-18-2020
-1

reverse() in python

# Operating System List
systems = ['Windows', 'macOS', 'Linux']
print('Original List:', systems)

# List Reverse
systems.reverse()

# updated list
print('Updated List:', systems)
Posted by: Guest on May-06-2021

Python Answers by Framework

Browse Popular Code Answers by Language