bisect: new command to extend the bisect range (issue2690)
When bisect ends in a merge point, and one of the parent wasn't checked,
this usually means the culprit is in a branch that wasn't scanned.
For this case we provide a new command which extends the range of the bisect
search to the common ancestor of the parents of the merge.
try:
import coverage
if hasattr(coverage, 'process_startup'):
coverage.process_startup()
except ImportError:
pass