Nick Coghlan <ncogh...@gmail.com> added the comment:
So something like:
GEN_CREATED, GEN_ACTIVE, GEN_CLOSED = range(3)
def getgeneratorstate(g):
"""Get current state of a generator-iterator.
Possible states are:
GEN_CREATED: Created, waiting to start execution
GEN_ACTIVE: Currently being executed (or suspended at yield)
GEN_CLOSED: Execution has completed
Use g.gi_running to determine if an active generator is running or
is suspended at a yield expression.
"""
if g.gi_frame is None:
return GEN_CLOSED
if g.gi_frame.f_lasti == -1:
return GEN_CREATED
return GEN_ACTIVE
Having 4 separate states actually makes the documentation a little easier to
write:
def getgeneratorstate(g):
"""Get current state of a generator-iterator.
Possible states are:
GEN_CREATED: Waiting to start execution
GEN_RUNNING: Currently being executed by the interpreter
GEN_SUSPENDED: Currently suspended at a yield expression
GEN_CLOSED: Execution has completed
"""
Checking if the generator is active is then just a matter of checking
"gen_state in (GEN_RUNNING, GEN_SUSPENDED)".
----------
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue10220>
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