On 26 August 2013 14:49, Neil Cerutti <ne...@norwich.edu> wrote:
> On 2013-08-25, sahil301...@gmail.com <sahil301...@gmail.com> wrote:
>>
>> eg. my input is ['1', ' ', 'asdasd231231', '1213asasd', '43242']
>> I want it to be interpreted as:
>> [1, [None], [None], [None], 43242]
>>
>> NOTE: NO INBUILT FUNCTION BE USED.
>
> Impossible. I think.
class BoilerplateToStopCheating:
def __init__(self):
"""Factor things out to prevent cheating."""
self.digit_to_number = {"0":0, "1":1, "2":2, "3":3, "4":4,
"5":5, "6":6, "7":7, "8":8, "9":9}
def __call__(self, items):
def fudging():
"""More cheat-fudging."""
for item in items:
try:
as_number = 0
for char in item:
as_number *= 10
as_number += self.digit_to_number[char]
yield as_number
except KeyError:
yield [None]
[*z] = fudging()
return z
converter = BoilerplateToStopCheating()
# Can't use "print"...
# Erm...
converter(['1', ' ', 'asdasd231231', '1213asasd', '43242'])
# Output: [1, [None], [None], [None], 43242]
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