diff -r 51f10e6d66c7 -r e2697acd9381 mercurial/debugcommands.py --- a/mercurial/debugcommands.py Tue Oct 02 12:43:54 2018 -0700 +++ b/mercurial/debugcommands.py Wed Oct 03 10:27:44 2018 -0700 @@ -2197,7 +2197,7 @@ fullsize[2] /= numfull semitotal = semisize[2] snaptotal = {} - if 0 < numsemi: + if numsemi > 0: semisize[2] /= numsemi for depth in snapsizedepth: snaptotal[depth] = snapsizedepth[depth][2]