Message 267262 - Python tracker

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In-reply-to
Author	xdegaye
Recipients	georg.brandl, xdegaye
Date	2016年06月04日.16:27:47
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1465057667.55.0.463895492434.issue27218@psf.upfronthosting.co.za>

Content
When a trace function set by sys.settrace() returns None, tracing of the current scope should stop, but this feature is not implemented (issue 11992). Currently f_trace is never set to Py_None. Setting f_trace to Py_None in trace_trampoline() when the trace function returns Py_None provides a way to avoid the costly calls to maybe_call_line_trace() that are made for each line in this scope even though the trace function is not called. This idea was initiated in issue 20041.

Content

When a trace function set by sys.settrace() returns None, tracing of the current scope should stop, but this feature is not implemented (issue 11992).
Currently f_trace is never set to Py_None. Setting f_trace to Py_None in trace_trampoline() when the trace function returns Py_None provides a way to avoid the costly calls to maybe_call_line_trace() that are made for each line in this scope even though the trace function is not called. This idea was initiated in issue 20041.

History
Date	User	Action	Args
2016年06月04日 16:27:47	xdegaye	set	recipients: + xdegaye, georg.brandl
2016年06月04日 16:27:47	xdegaye	set	messageid: <1465057667.55.0.463895492434.issue27218@psf.upfronthosting.co.za>
2016年06月04日 16:27:47	xdegaye	link	issue27218 messages
2016年06月04日 16:27:47	xdegaye	create

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