On 29 авг, 20:25, "Günther Dietrich" <gd_use...@spamfence.net> wrote: > Paul McGuire <pt...@austin.rr.com> wrote: > >What exactly are you trying to do? > > I think, he wants to kind of dereference the list element. So that he > can write > > >>> a += 1 > > instead of > > >>> long_name_of_a_list_which_contains_data[mnemonic_pointer_name] += 1 > > Regards, > > Günther
That's right. I thought that int as object will stay the same object after += but with another integer value. My intuition said me that int object which represent integer value should behave this way. But by design python's integer behave differently. I fond that NumPy's 1-d types behaves as objects with mutable values. >>> from numpy import * >>> a=array([1]) >>> id(a) 10912544 >>> a += 1 >>> id(a) 10912544 >>> a array([2]) -- http://mail.python.org/mailman/listinfo/python-list