How to test characters of a string

Barry barry at barrys-emacs.org
Tue Jun 7 17:22:50 EDT 2022



> On 7 Jun 2022, at 22:04, Dave <dave at looktowindward.com> wrote:
> 
> It depends on the language I’m using, in Objective C, I’d use isNumeric, just wanted to know what the equivalent is in Python.
> 
> If you know the answer why don’t you just tell me and if you don’t, don’t post!

People ask home work questions here and we try to teach a student with hints not finished answers.
Your post was confused with a home work question.

Barry

> 
> 
>> On 7 Jun 2022, at 22:08, 2QdxY4RzWzUUiLuE at potatochowder.com wrote:
>> 
>>> On 2022-06-07 at 21:35:43 +0200,
>>> Dave <dave at looktowindward.com> wrote:
>>> 
>>> I’m new to Python and have a simple problem that I can’t seem to find
>>> the answer.
>> 
>>> I want to test the first two characters of a string to check if the
>>> are numeric (00 to 99) and if so remove the fist three chars from the
>>> string.
>> 
>>> Example: if “05 Trinket” I want “Trinket”, but “Trinket” I still want
>>> “Trinket”. I can’t for the life of work out how to do it in Python?
>> 
>> How would you do it without Python?
>> 
>> Given that if the string is called x, then x[y] is the y'th character
>> (where what you would call "the first character," Python calls "the
>> zeroth character"), describe the steps you would take *as a person* (or
>> in some other programming language, if you know one) to carry out this
>> task.
>> 
>> Translating that algorithm to Python is the next step.  Perhaps
>> https://docs.python.org/3/library/string.html can help.
>> -- 
>> https://mail.python.org/mailman/listinfo/python-list
> 
> -- 
> https://mail.python.org/mailman/listinfo/python-list



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