Make a string a int if it is a specific string?

Question

I have a list of strings and want to loop over the list and make the value in the list 0 if it is a specific string. Below is the code I am attempting but it is not working:

variable1 = ['None', 'One', 'Two', 'Three', 'None']   
variable2 = [0 if v is 'None' else v for v in variable1]

The result should be: [0, 'One', 'Two', 'Three', 0] but it is not changing the None strings.

If you've seen `is` and `None` together and are trying to repeat it, note that `None` is very different from string `'None'`... — Nick T, Sep 07 '17 at 17:13
Any reason you want the `'None'`s to be the integer `0` and not the word Zero or change the rest of the words to be numerics as well? Seems a little odd... — Jon Clements, Sep 07 '17 at 17:14

score 5 · Accepted Answer · answered Sep 07 '17 at 17:11

5

Avoid is, since it requires the strings to be the same object. Use == so two distinct string objects can still compare equal.

variable2 = [0 if v == 'None' else v for v in variable1]

answered Sep 07 '17 at 17:11

John Kugelman

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Make a string a int if it is a specific string?

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