On Fri, 16 Mar 2018 04:15:11 +1100 Chris Angelico <ros...@gmail.com> wrote: > On Fri, Mar 16, 2018 at 12:38 AM, George Fischhof <geo...@fischhof.hu> wrote: > > > > > > " if new file functions are added, they will go only in pathlib, > > which makes pathlib effectively mandatory;" > > Yes but I think this part of the evolution: slowly everyone will shift to > > pathlib, > > and being mandatory is true for the current status as well: if you need a > > function, you need the module. > > Right now if you wan to execute some file operations, you need os plus > > shutil, because the half of the > > functions are in one of them, the other half is in the other module > > The os module is cheap; pathlib has a definite cost. If every file > operation goes through pathlib, that basically means pathlib becomes > part of the startup cost: > > rosuav@sikorsky:~$ python3 -m timeit -s 'import subprocess, sys, > pathlib' 'subprocess.check_call([sys.executable, "-c", "import os"])' > 50 loops, best of 5: 8.82 msec per loop > rosuav@sikorsky:~$ python3 -m timeit -s 'import subprocess, sys, > pathlib' 'subprocess.check_call([sys.executable, "-c", "import > pathlib"])' > 20 loops, best of 5: 15.9 msec per loop
Which version is this "python3"? Regards Antoine. _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
