Precision with Decimal Type

[perfringo]

Some things to consider:

Documentation > 6.Modules > 6.1. More on modules

Note that in general the practice of importing * from a module or package is frowned upon, since it often causes poorly readable code. However, it is okay to use it to save typing in interactive sessions.

decimal — Decimal fixed point and floating point arithmetic

The significance of a new Decimal is determined solely by the number of digits input. Context precision and rounding only come into play during arithmetic operations.