Re: Accumulate , Range and Zeros
oh not a real bug, i thought the effect had to do with generator working rather a simple times 0 Abdur-Rahmaan Janhangeer Mauritius On Sat, 13 Jul 2019, 16:24 Chris Angelico, wrote: > On Sat, Jul 13, 2019 at 10:02 PM Abdur-Rahmaan Janhangeer > wrote: > > > > @Thomas thought was a generator bug since instead of returning the usual > > nums it was returning 0 0 0 ... > > When you find a bug or strange bit of behaviour, first make sure you > can reproduce it. Then create a small, self-contained program, just > enough to demonstrate what's going on. Post that code. Don't make us > guess :) > > ChrisA > -- > https://mail.python.org/mailman/listinfo/python-list > -- https://mail.python.org/mailman/listinfo/python-list
Re: Accumulate , Range and Zeros
On Sat, Jul 13, 2019 at 10:02 PM Abdur-Rahmaan Janhangeer wrote: > > @Thomas thought was a generator bug since instead of returning the usual > nums it was returning 0 0 0 ... When you find a bug or strange bit of behaviour, first make sure you can reproduce it. Then create a small, self-contained program, just enough to demonstrate what's going on. Post that code. Don't make us guess :) ChrisA -- https://mail.python.org/mailman/listinfo/python-list
Re: Accumulate , Range and Zeros
@Thomas thought was a generator bug since instead of returning the usual nums it was returning 0 0 0 ... -- https://mail.python.org/mailman/listinfo/python-list
Re: Accumulate , Range and Zeros
On 13/07/2019 11:54, Abdur-Rahmaan Janhangeer wrote: > Greetings, > > Given this snippet > > from itertools import * > import operator > > > x = [1, 2, 3] # [0, 1, 2, 3, ..., 10] > > y = accumulate(x, operator.mul) > > print(list(y)) > > why does x = list(range(5)) produces only zeros? What would you expect it to produce? -- https://mail.python.org/mailman/listinfo/python-list
Re: Accumulate , Range and Zeros
@Frank So simple. Thanks! Abdur-Rahmaan Janhangeer http://www.pythonmembers.club | https://github.com/Abdur-rahmaanJ Mauritius -- https://mail.python.org/mailman/listinfo/python-list
Re: Accumulate , Range and Zeros
On 7/13/19 5:54 AM, Abdur-Rahmaan Janhangeer wrote: > > Greetings, > > > > Given this snippet > > > > from itertools import * > > import operator > > > > > > x = [1, 2, 3] # [0, 1, 2, 3, ..., 10] > > > > y = accumulate(x, operator.mul) > > > > print(list(y)) > > > > why does x = list(range(5)) produces only zeros? I see two things going on here. (1) Don't type snippets of code and results from memory, or in bits and pieces from an interactive session. Copy and paste exactly the code that ran and the output that it produced. (2) What is range(5)? Okay, what is list(range(5))? What do you (the person) get when you multiply those five integers together? HTH, Dan -- https://mail.python.org/mailman/listinfo/python-list
Re: Accumulate , Range and Zeros
On 2019-07-13 11:54 AM, Abdur-Rahmaan Janhangeer wrote: Greetings, Given this snippet from itertools import * import operator x = [1, 2, 3] # [0, 1, 2, 3, ..., 10] y = accumulate(x, operator.mul) print(list(y)) why does x = list(range(5)) produces only zeros? That is an easy one. By default, range() starts from 0. Anything multiplied by 0 equals 0. So you can multiply as many numbers as you like, if the first one is 0, the rest will also be 0. QED Frank Millman -- https://mail.python.org/mailman/listinfo/python-list
