Incrementing loop step by 2 in Python
In each iteration, forthe loop increases the counter variable by a constant. A loop with the sequence 0, 2, 4, 6 forwill increase the counter variable by 2 each iteration.
This article will show you some forways to increment by 2 in a loop in Python.
Incrementing by 2 using the function
in a Python forlooprange()
In this function, we use range()the function. It has three parameters, namely start, , stopand step. The function startstarts iterating from the value of and increments by every given step, but not including stopthe value of .
The complete example code is as follows.
for x in range(0, 12, 2):
print(x)
If you are using Python 2, you can also use xrange()the function.
Output:
0
2
4
6
8
10
forIncrementing by 2 in a
Python loop using slice method
This method uses the slice operator :to increment the list value by 2. In the code, the first number represents the starting index (default is 0), the second number represents the ending slice index (default is the end of the list), and the third number represents the step size.
The complete example code is as follows.
my_list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
for x in my_list[1::2]:
print(x)
Output:
2
4
6
8
10
Note that this method will copy the original list to a new memory space. If the list is large, it will perform poorly.
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