Python Coding challenge - Day 475| What is the output of the following Python Code?

 

Code Explanation:

 1. Importing the decimal Module

from decimal import Decimal, getcontext

Decimal is used for high-precision decimal arithmetic, avoiding float inaccuracies.

getcontext() accesses the current decimal arithmetic settings, such as precision.

 2. Setting Precision

getcontext().prec = 4

Sets the precision of decimal operations to 4 significant digits (not decimal places).

This affects how many total digits (before + after decimal) the results can retain.

Important: this doesn't round the final printed value like round() — it controls internal calculation precision.

3. Division with Precision

x = Decimal(1) / Decimal(7)

Performs the division 1 ÷ 7 with Decimal precision of 4 digits.

Result: Decimal('0.1429') (rounded to 4 significant digits)

4. Multiplying and Converting

print(int(x * 1000))

x ≈ 0.1429

Multiply by 1000: 0.1429 * 1000 = 142.9

Convert to int: truncates decimal → 142

 Final Output

142