Someone is emailing you an invoice. You grab the "windows machine" and open up the online banking.
It's time to type the provided IBAN. And to be frank - IBANs are really hard to read.
You get something like that:
BG80BNBG96611020345678
A bunch of numbers and letters that are hard to look at & type elsewhere.
But if you somehow manage to get the IBAN to look like that:
BG80 BNBG 9661 1020 3456 78
It's quite easy to type that elsewhere, because everyting is split in groups of 4 numbers & there's nice whitespace.
Your task is to implement the following Python function:
def iban_formatter(iban):
pass- The function takes a string (an IBAN) and returns the IBAN in the formatted way showed above.
- Keep in mind that the IBAN can be already formatted & the function should take care of that too.
Examples:
iban_formatter("BG80BNBG96611020345678") == "BG80 BNBG 9661 1020 3456 78"
iban_formatter("BG80 BNBG 9661 1020 3456 78") == "BG80 BNBG 9661 1020 3456 78"
iban_formatter("BG14TTBB94005362446381") == "BG14 TTBB 9400 5362 4463 81"
iban_formatter("BG91UNCR70001864961754") == "BG91 UNCR 7000 1864 9617 54"Hints:
- Think of
''.join(xs)- https://docs.python.org/3/library/stdtypes.html#str.join - Think of
string.replace(x, y)- https://docs.python.org/3/library/stdtypes.html#str.replace