[Tutor] strange errors

[Gabriele Brambilla]

an example of errors that I obtain is: I build a matrix (SciPy array) using
the same data.
I search for the maximum and the minimum with the given function and I
insert the two values in a tuple that I print.
sometimes it print to me this: (0.0, 3.1926676650124463e-14)
sometimes it print to me: (nan, nan)

Thanks

Gabriele


2014-02-02 Alan Gauld <alan.gauld at btinternet.com>:

> On 02/02/14 02:11, Gabriele Brambilla wrote:
>
>  sometimes when I try to run a program in Python I obtain some errors.
>>
>
> How are you running the program?
>
> doubly clicking in a file manager/explorer?
> Running from an OS command line?
> Importing from the Python >>> prompt?
> Or using some kind of IDE? (Which?)
>
> The answer to your question depends a lot on the way you
> run the code.
>
> A sample error and your OS and Python version will help too.
>
>
>  How could I avoid this problem? I think that it is because it "remember"
>> some variables that I have used...
>>
>
> Could be. If you import a module then change that module then
> reimporting alone is not enough. But if you run the code from the OS that
> shouldn't be an issue. So how do you run the code?
>
> --
> Alan G
> Author of the Learn to Program web site
> http://www.alan-g.me.uk/
> http://www.flickr.com/photos/alangauldphotos
>
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