Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #32603

Re: Negative array indicies and slice()

Show key headers only | View raw

Hi Ian,

I apologize for trying your patience with the badly written code 
example.  All objects were meant to be ThirdParty(), the demo was only 
to show how a slice() filter could have been applied for the reasons 
PEP357 made index() to exist.
eg: because numpy items passed to __getitems__ via slice syntax [::] 
were illegal values.
PEP 357 is the one who specifically mentioned Numpy types -- which is 
the only reason I used the name in the example;  I could have just as 
well used a string.

I am fully aware of what numpy does -- I have used it; modified the 
fortran interfaces underneath, etc.

The index() method, however, affects *all* list objects in Python, not 
just Numpy's -- correct?

I'll write a working piece of code tomorrow to demonstrate the filter 
very clearly rather than a skeleton, and test it before posting.

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Re: Negative array indicies and slice() Andrew Robinson <andrew3@r3dsolutions.com> - 2012-11-01 15:25 -0700
  Re: Negative array indicies and slice() Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-11-02 02:14 +0000
    Re: Negative array indicies and slice() Andrew Robinson <andrew3@r3dsolutions.com> - 2012-11-02 01:57 -0700
    Re: Negative array indicies and slice() Robert Kern <robert.kern@gmail.com> - 2012-11-02 10:48 +0000

csiph-web