Thanks a lot for this information. On Thu, Jun 14, 2018, 4:28 PM Alan Gauld via Tutor <tutor@python.org> wrote:
> On 14/06/18 08:40, Deepak Dixit wrote: > > You mean that for default args and passed args of mutable type, python > uses > > different object and same reference will be used for further calling of > the > > function. > > Yes, the default argument object is created when the > function is defined (ie before it is even called the > first time) and the same reference to that obje3ct is > always used for the default argument. > > When you provide the argument yourself Python uses > whatever object you pass. > > > Now one more thing I want to ask you that how can I get deep > understanding > > of python like how list, dictionary works internally and other topics , > is > > it only possible after more and more practice. > > - You can observe the behaviour as you have been doing. > - You can use the disassembly module (dis) to look at > the object code generated by the compiler. > - And, the ultimate truth, you can read the C source code > if you know C. > > And of course you can ask questions here. We have several > contributers who understand Python internals quite well. > > -- > Alan G > Author of the Learn to Program web site > http://www.alan-g.me.uk/ > http://www.amazon.com/author/alan_gauld > Follow my photo-blog on Flickr at: > http://www.flickr.com/photos/alangauldphotos > > > _______________________________________________ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > https://mail.python.org/mailman/listinfo/tutor > _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
