Here,how this program prints the output as 1111.0 ??what about underscore?

Question

a='11_11'
print(float(a))

Even the 'infinity' is printed as inf why?

Answer 1

The underscore is a possibility to group numbers for better readability. It can be used in a string representation or in an int value.

a='11_11'
print(float(a))
print(10_000)

Answer 2

New feature from version 3.6

https://staging.python.org/dev/peps/pep-0515/

Answer 3

Thanks i understood