Python For Loop Enumerate

Опубликовано: 15 Август 2018
на канале: Python Marathon

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^Downloadable code & more! This tutorial will walk through using enumerate with a for loop. Type for index, value in enumerate(): to use this process. For further questions please comment. This is a really helpful python coding tool that has endless applications. It allows you to know the index and value of the object you are iterating through with your for loop.

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ENUMERATE

We open Ipython for this example

First we will create a list with list comprehension. You can find a video on that in the description.

Here is the list printed out. It is pretty long from -20 all the way to positive 20

So let’s create a for loop with enumerate

Enumerate will go through each value and index, so we will type those variable names here.

for index, value in enumerate(List)

and we will just print this out to show you what each is doing

Here they are. We have the index starting with 0 down to 40

And the values of the list -20 to positive 20.

Notice 0 is at index 20.

So there you have it that is how you use enumerate with for loops in python

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