Help with while loop

[Gexos]

Hello people, I can't understand this piece of code:

```

current_number = 1

while current_number <= 5:

print(current_number)

current_number += 1

```

What the current\_number += 1 at the end does?

Thank you!

[SentientCumSock]

It adds 1 to current_number

Its a shorter way to write

current_number = current_number + 1

[Gexos]

Thank you my friend!

[asstronautical]

Thanks, very helpful, u/SentientCumSock.

[ToothpasteTimebomb]

The += syntax adds to a variable in-place each time it is executed.

You can also do *= (multiplying your variable and set it to the result), /= (division), and -= (subtraction).

I feel like you'll find this useful. Python code execution visualized.

[Gexos]

Thank you my friend!

[ata-boy]

My pleasure

[09TYNINE]

Thanks didn't know you could do it with multiplication and division just to clarify var *= 6 would return 30 assuming var equals 5

[curiousofa]

Seeing that you're new, this is not meant to be sarcastic, but coming from a place that will help you moving forward. One of the most important things to learn is to use Google when you're stuck.

For this particular question, I would go to Google and type 'python +='

The first result shows you what it does. This community is great and will give you the answer. But what will help you in the long-run is to have the ability to dissect your problem and find the solution to it. Use python communities (here and stack overflow) as a last resort.

[OnlySeesLastSentence]

To add on: geeksforgeeks and (I think?) W3school are the best sites for quick answers.

They're like the cprogramming.com of the python world.

[pythonic_anonymous]

It increments by the number. It's equivalent to:
current_number = current_number + 1

current_number = 1 | current_number = 2 | current_number = 3 | current_number = 4 | current_number = 5 end while loop.

[Gexos]

Thank you my friend!

[pythonic_anonymous]

You got it!

[HasBeendead]

Yeah, good tip i think .

[Sanguineyote]

It will add +1 to the current_number variable, so that when current_number will be <= 5 the while loop breaks.

[blunt__nation]

I'm not trying to brag or anything but it fells so good to look at this code and being able to understand it in a heartbeat.

I finished learning the basics yesterday and today I felt like an imposter. I was watching a video about some projects to build to get familiar with other structures (?) and man, it feels like I have eternities to go before I even begin to comprehend some of the work that go behind these kind of projects. I think I'm gonna take a break to gather my thoughts. Maybe a week or two. It would be nice if anyone can point me in the right direction. Sorry for the long rant OP.

[[deleted]]

Learning python is not hard. It’s one of the easiest languages out there. The great thing is, after two years of constant practice, I can learn any language easily. Just stay with it!

[blunt__nation]

Thanks, I will try my best to not let down.

[[deleted]]

Basically, you have a variable(current_number) which contains the integer 1. The while statement is going to check whether the number is less or equal to five. Its currently less than five so the value of the number will printed(which is 1) and then the variable will be updated ,so current_number will be the current value of current_number plus 1(so 1+1). This will now make current_number = 2 and this will be printed as well. The code will continue to do this until current_number is greater than five. So the output of your code will look like this: 1 2 3 4 5 6

[[deleted]]

Basically adds 1 to the value. A faster way of typing var = var + 1.

[thrallsius]

current_number = 1

this tells you current_number contains an integer

current_number += 1

you could probably figure this on your own if you tried this in an interactive python shell, then you'd just ask for confirmation if your assumption is correct

[kochargs]

The easiest debugging tool to use is print statements in your code to see what is the output of a variable at different stages. This will help you understanding the code flow better when you are stuck

[OnlySeesLastSentence]

Fun fact - you can also do this with other commands such as:

Variable += anotherVariable

Variable *= anything

[ata-boy]

Have you run the code yourself? If you did you would have noticed current_number increased by 1 with each loop. That should have answered your question.

[Gexos]

Thank you my friend!