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Challenge 51: Phone Number Formatter

curriculum/challenges/english/blocks/daily-coding-challenges-python/68b7cadffed0e75a517da671.md

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--description--

Given a string of eleven digits, return the string as a phone number in this format: "+D (DDD) DDD-DDDD".

--hints--

format_number("05552340182") should return "+0 (555) 234-0182".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(format_number("05552340182"), "+0 (555) 234-0182")`)
}})

format_number("15554354792") should return "+1 (555) 435-4792".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(format_number("15554354792"), "+1 (555) 435-4792")`)
}})

--seed--

--seed-contents--

py
def format_number(number):

    return number

--solutions--

py
def format_number(number):
    country = number[0]
    area = number[1:4]
    prefix = number[4:7]
    line = number[7:]

    return f"+{country} ({area}) {prefix}-{line}"