How to specify large integer literals in a readable way?

Question

I want to specify a sequence of large integers (with many zeros) like:

a = [1e13, 1e14, 1e19, ...]

My intuition is to use scientific notation. But in python, it's a float instead of integer. Is there a easy way in python to write these integer literals without writing all the zeros, because making sure the number of zeros correct is a nightmare.

I believe I can cast the floats back to integer using int, but just wonder if there is a better way?

Answer 1

For future viewers.

Since python 3.6 PEP 515 would be included.

So you can do a = 1_000_000_000_000 for better code's readability.