Learn Powerful Python one-liners

Today, we are going to learn about useful Python one-liners. When I first saw a single-line code fragment in Python I was like, “Is this possible?” one-liners reduce the time to write a lot of code and make it cleaner but it may be difficult to understand for those who just started their journey in Python.

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Powerful Python one-liners

We are going to see the example of Python one-liners with for loop, if, else statements, built-in function (map() and filter()) and anonymous Lambda function.

One-liner

1. One-liner for loop

Normal Program

num_list=[]
for num in range(0, 11):
   num_list.append(num)
print(num_list)


## >>> [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

One-liner

num_list=[num for num in range(0, 10+1)]
## '10+1' as the upper limit is excluded.

print(num_list)

## >>> [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

Let us start with a simple Python one-liner program where we create a list that contains…