references and buffer()
fredrik at pythonware.com
Sun Oct 8 21:22:51 CEST 2006
> ok so can i point a vairiable to an address location just as done in C
> language ?
no. there are no C-style "variables" in Python; just objects and names
bound to objects. Python variables are names, not memory locations.
> >>> y = 'ATGCATGC'
> >>> x = buffer(y)
> >>> del(y)
> >>> x
> <read-only buffer for 0xbf4cf0e0, size -1, offset 0 at 0xbf4cf240>
> >>> print x
> now even when i delete y, why is that x still exists ?
because it's an object.
> thats true even in the case of vairable assignment which states it a a
> reference !
> >>> a = 10
> >>> b = a
> >>> del(a)
> >>> b
> i always thought if u modify the referred variable/buffer object it
> should be reflected in the referenced variables/buffers objects . am i
> wrong ?
reset your brain:
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