decimal module in Python.

Question

There is no proper description about decimal module and Decimal() ion internet.
import decimal
x='3.3'
y=3.3
a=decimal.Decimal(x)
b=decimal.Decimal(a)
c=decimal.Decimal(y)
print(x,type(x))
print(y,type(y))
print(a,type(a))
print(b,type(b))
print(c,type(c))

Why a=3.3 and b=3.29999......... ? How does Decimal() function works >

Answer 1

Try

import decimal

help(decimal)

And here's a link to the non-existing proper description: https://docs.python.org/3/library/decimal.html 🤓

Answer 2

Also, you wrote it wrong. a and b are both 3.3. c is 3.299..., because it's been converted from a float (y), so the internal value of that float is taken. This is also explained in proper detail in the docs Anna linked.

Answer 3

Anna I have already seen it but it is not proper. Also it is the only document which has some detail about decimal. Other websites shows functions in decimal module only.