Oh! Sorry I didn't get that earlier. 😛 On Sat, 18 Apr, 2020, 9:10 pm MRAB, <pyt...@mrabarnett.plus.com> wrote:
> On 2020-04-18 08:59, Souvik Dutta wrote: > > Okay so I was not able to say properly. You are indeed doing the same > thing > > that you were doing i.e. writting the modified data just, that now you > > don't need to close you if file before doing any writting stuff. That is > > there is a one line deduction from the whole code. > > > > Souvik flutter dev > > > No. As Peter said, writing to a _new_ file is better. > > Read from old, write to new, then, when you've finished, replace the old > with the new (or rename the old as a backup and then rename the new as > the old). That way, if anything goes wrong during processing, you'll > still have the original. > > > On Sat, Apr 18, 2020, 1:20 PM Peter Otten <__pete...@web.de> wrote: > > > >> Souvik Dutta wrote: > >> > >> > You can actually read and write in a file simultaneously. Just replace > >> "r" > >> > with "w+" if the file has not been previously made or use "r+" is the > >> file > >> > has already been made. > >> > >> Good advice for those who like to butcher their data ;) > >> > >> Seriously, writing modified data into a new file is the cleaner and > safer > >> method in most cases. > >> > -- > https://mail.python.org/mailman/listinfo/python-list > -- https://mail.python.org/mailman/listinfo/python-list
