-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 08/12/2012 10:00 AM, Sandro Tosi wrote:
Hello Martin,
On Thu, Aug 2, 2012 at 7:03 AM, Martin <mpc4@gmx.com> wrote:
Hi, sorry to bother, i think i found an unecessary comma at:
http://docs.python.org/py3k/tutorial/datastructures.html#nested-list-compreh...
I think it's just an cosmetic "problem" and probably the extra comma is there for uniformity with the 2 lines above it - given it's a no-op in this case (it generates no error after all) I'm inclined not to change it. Also it might also be a standard for the person that wrote the example to add an extra comma at the end of lists or tuples, because sometimes it might be relevand (f.e. ('A',) is a tuple, and the extra comma is needed there).
Another good reason to keep the trailing commata in enumerations is that if you add another item, only one line of code will change. Having to add a comma in the previous line will generate a spuriously changed line in the diff that makes it harder to review. cheers, Georg -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) iEYEARECAAYFAlAneAUACgkQN9GcIYhpnLB8igCeO9YnnZTCm2Bw/aFR2FRUBtJ2 3d0AoKsc8ruZjRwOUKWE869z1Zp0+9Nt =tTQt -----END PGP SIGNATURE-----