food-chain: implement exercise

[ilya-khadykin]

There are exercises that are not yet implemented in Python track (the full list of them - #417 (comment)).
You can help us change this situation by implementing this one. Ref #417

The guide "Implement an exercise from specification" will help you succeed.

If you still have questions, I encourage you to ask them before starting working on the issue.

I also suggest claiming the issue by creating an empty PR as stated here

Please note that there are some special 'closing issue' keywords that you can put in description of your PR and Github will take care of closing the corresponding issue automatically after merge.
This simple thing helps us a lot, and makes our life a bit easier

[luanjpb]

Can i?

[ilya-khadykin]

@LU4XLII sure, have fun
I suggest creating an empty [WIP] PR - https://github.com/exercism/docs/blob/master/you-can-help/implement-an-exercise-from-specification.md#avoiding-duplicate-work to claim it

[Rajdeep400]

can i ?

[ilya-khadykin]

@Rajdeep400 I'd say yes since @LU4XLII the closed claiming PR

@LU4XLII, are you still working on this?

[luanjpb]

@m-a-ge I have made a second pull request with the complete exercise.

[ilya-khadykin]

@LU4XLII could you reference this issue in your PR description to indicate that you're working on it?

It's generally not a good idea to close existing PR and creating a new one because it's harder for maintainers to track progress etc. If you are not sure how to update already opened PR, feel free to ask

[luanjpb]

@m-a-ge I have updated the original pull request and closed the second, is this ok now?

[ilya-khadykin]

@LU4XLII give me some time to review it