Python, while loop is used for performing an indefinite iteration. That means repeatedly executing a section of code until a condition is met or no longer met. Where the number of times the loop will be executed, is not specified explicitly in advance.
While(condition):
{
....
...statement
increment or decrement
} How’s while loop works in Python:-
- First initialise value to the variable
- Then the statements inside the while loop will execute
- Later increment or decrement statement will execute
- This process will continue till the condition gets false.
Example while loop in Python
The while loop in python is used to iterate over a block of code until the condition is true.
# initialize sum and counter
res = 0
i = 1
while i <= 10:
res = res + i
i = i + 1 # update counter
# print the sum
print("The sum is", res)
Output:
Do comment if you have any doubts and suggestions on this Python while loop question.
Note: IDE: PyCharm 2021.3.3 (Community Edition)
Windows 10
Python 3.10.1
All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.