def start(cls, func, scheduler=None):
"""Invokes the specified function asynchronously on the specified
scheduler, surfacing the result through an observable sequence.
Example:
res = rx.Observable.start(lambda: pprint('hello'))
res = rx.Observable.start(lambda: pprint('hello'), rx.Scheduler.timeout)
Keyword arguments:
func -- {Function} Function to run asynchronously.
scheduler -- {Scheduler} [Optional] Scheduler to run the function on. If
not specified, defaults to Scheduler.timeout.
Returns {Observable} An observable sequence exposing the function's
result value, or an exception.
Remarks:
The function is called immediately, not during the subscription of the
resulting sequence. Multiple subscriptions to the resulting sequence can
observe the function's result."""
return Observable.to_async(func, scheduler)()
def create():
def func(a, b, c, d):
return a + b + c + d
return Observable.to_async(func, scheduler)(1, 2, 3, 4)
def create():
def func(x, y, z):
return x + y + z
return Observable.to_async(func, scheduler)(1, 2, 3)
def create():
def func(x):
return x
return Observable.to_async(func, scheduler)(1)
def create():
context = Context()
return Observable.to_async(context.func, scheduler)(42)
def create():
def func(a, b, c):
raise ex
return Observable.to_async(func, scheduler)(1, 2, 3)