Explain the meaning of ' i ' in the following code [closed]

Question

import random

for i in range(5):
 
    print(random.randint(1, 10))

Is it the number of integers that we want to print? But we didn't specify that it's the number of integers in the code, so how does python understand?

Answer 1

for i in range(5):
  do this action

Is (the Python way of saying

"for each element in range(5)
do this action".

range(5) can be replaced by any iterable collection.
In this example the variable i is not used. We might write

for i in range(5):
  print(i)

which would print out all the values from the expression range(5).

Answer 2

The Python for construct requires a variable name between for and in. Conventional practice is to use _ (underscore) as the variable in cases where a variable is required but not actually used/relevant. Note that _ is a valid variable name.

Answer 3

As you guessed, i in that code will be the number of random integers to be printed. That is because, in python, the range constructor will generate a sequence of integers when specified in the way you are showing.

If only one argument is specified, python will assume that you want to begin by the number zero, incrementing by one unit until it reaches the number one unit below the specified argument.