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Re: Checking homogeneity of Array using List in Python

References <39cf54bd-3772-448a-a56e-74e0b3cc8017@googlegroups.com> <b814mdF7v9aU1@mid.individual.net>
From Joshua Landau <joshua@landau.ws>
Date 2013-08-26 23:39 +0100
Subject Re: Checking homogeneity of Array using List in Python
Newsgroups comp.lang.python
Message-ID <mailman.248.1377556789.19984.python-list@python.org> (permalink)

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On 26 August 2013 14:49, Neil Cerutti <neilc@norwich.edu> wrote:
> On 2013-08-25, sahil301290@gmail.com <sahil301290@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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Thread

Checking homogeneity of Array using List in Python sahil301290@gmail.com - 2013-08-24 22:50 -0700
  Re: Checking homogeneity of Array using List in Python Chris Angelico <rosuav@gmail.com> - 2013-08-25 16:03 +1000
  Re: Checking homogeneity of Array using List in Python Joel Goldstick <joel.goldstick@gmail.com> - 2013-08-25 11:54 -0400
  Re: Checking homogeneity of Array using List in Python Dave Angel <davea@davea.name> - 2013-08-25 20:49 +0000
  Re: Checking homogeneity of Array using List in Python Neil Cerutti <neilc@norwich.edu> - 2013-08-26 13:49 +0000
    Re: Checking homogeneity of Array using List in Python Joshua Landau <joshua@landau.ws> - 2013-08-26 23:39 +0100
      Re: Checking homogeneity of Array using List in Python Neil Cerutti <neilc@norwich.edu> - 2013-08-27 12:03 +0000

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