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devel / comp.lang.python / Re: learning python ...

Re: learning python ...

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From: Ron.Lau...@f192.n1.z21.fsxnet (Ron Lauzon)
Newsgroups: comp.lang.python
Subject: Re: learning python ...
Date: Mon, 24 May 2021 08:14:39 +1200
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by: Ron Lauzon - Sun, 23 May 2021 20:14 UTC

-=> hw wrote to All <=-

hw> Traceback (most recent call last):
hw> File "[...]/hworld.py", line 18, in <module>
hw> print(isinstance(int, float))
hw> TypeError: isinstance() arg 2 must be a type or tuple of types

hw> I would understand to get an error message in line 5 but not in 18. Is
hw> this a bug or a feature?

Python is case sensitive. Is that supposed to be "isInstance"?

.... I used to jog, but the ice kept falling out of my glass.
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Re: learning python ...

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From: ml_n...@posteo.de (Manfred Lotz)
Newsgroups: comp.lang.python
Subject: Re: learning python ...
Date: Tue, 25 May 2021 18:49:18 +0200
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by: Manfred Lotz - Tue, 25 May 2021 16:49 UTC

On Mon, 24 May 2021 08:14:39 +1200
Ron.Lauzon@f192.n1.z21.fsxnet (Ron Lauzon) wrote:

> -=> hw wrote to All <=-
>
> hw> Traceback (most recent call last):
> hw> File "[...]/hworld.py", line 18, in <module>
> hw> print(isinstance(int, float))
> hw> TypeError: isinstance() arg 2 must be a type or tuple of types
>
> hw> I would understand to get an error message in line 5 but not in
> hw> 18. Is this a bug or a feature?
>
> Python is case sensitive. Is that supposed to be "isInstance"?
>
>

This is easy to check

$ python3
Python 3.9.5 (default, May 14 2021, 00:00:00)
[GCC 11.1.1 20210428 (Red Hat 11.1.1-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> isinstance
<built-in function isinstance>
>>> isInstance
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'isInstance' is not defined

Subject	Author
Re: learning python ...	Ron Lauzon
Re: learning python ...	Manfred Lotz