[PYTHON] It is convenient to use Icecream instead of print when debugging.

I read this article and found it very useful, so I would like to share it.

motivation

Let's assume the following code.

num1 = 30
num2 = 40

print(num1)
print(num2)

The output is

30
40

It will be. Now, by looking at the output above, can you quickly tell whether 30 or 40 corresponds to num1 or num2? As long as there are few output variables, this does not seem to be a problem, but when it comes to 5, it becomes a little troublesome.

For the time being, the solution is as follows.

num1 = 30
num2 = 40

print('num1', num1)
print('num2', num2)

The output is

num1 30
num2 40

Certainly, the correspondence between variable names and variable values ​​is easier to understand than in the original code. However, the problem is that writing the code is cumbersome.

What is Icecream?

The solution to the above problem is the python library Icecream. Installation can be done with pip.

pip install icecream

from icecream import ic

num1 = 30
num2 = 40

ic(num1)
ic(num2)

The output is

ic| num1: 30
ic| num2: 40

Very simple and nice! This is not the only convenience of Icecream. You can use functions and conditional branching. If you are interested, please check here.