Python float to Decimal conversion

Question

Python Decimal doesn\'t support being constructed from float; it expects that you have to convert float to a string first.

This is very inconvenient since standard

Answer 1

Python does support Decimal creation from a float. You just cast it as a string first. But the precision loss doesn't occur with string conversion. The float you are converting doesn't have that kind of precision in the first place. (Otherwise you wouldn't need Decimal)

I think the confusion here is that we can create float literals in decimal format, but as soon as the interpreter consumes that literal the inner representation becomes a floating point number.