floating point - What is the smallest number which can be represented in python?

Question

What is the smallest number which can be represented in python?

I have seen as small as 2.05623357236e-296 but can there be any smaller?

Answer 1

Check out sys.float_info

>>> import sys
>>> sys.float_info 
sys.float_info(max=1.7976931348623157e+308, max_exp=1024, max_10_exp=308, min=2.2250738585072014e-308, min_exp=-1021, min_10_exp=-307, dig=15, mant_dig=53, epsilon=2.220446049250313e-16, radix=2, rounds=1)

From the docs

min       DBL_MIN      minimum positive normalized float 
min_exp   DBL_MIN_EXP  minimum integer e such that radix**(e-1) is a normalized float

On my system it is mentioned as min=2.2250738585072014e-308