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python3.5
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r rM � _tb_loggerr" r@ rD )r r r r rG s z Future.resultc C se | j t k r t � | j t k r0 t d � � d | _ | j d k r^ | j j � d | _ | j S)NzException is not set.F) r= rP r r? r rM rV r" r@ )r r r r rL ) s zFuture.exceptionc C s9 | j t k r% | j j | | � n | j j | � d S)N)r= rO r rS r1 rA )r �fnr r r �add_done_callback; s zFuture.add_done_callbackc sR � f d d � | j D� } t | j � t | � } | rN | | j d d � <| S)Nc s" g | ] } | � k r | � q Sr r )�.0�f)rW r r � <listcomp>N s z/Future.remove_done_callback.<locals>.<listcomp>)r1 r9 )r rW Zfiltered_callbacksZ removed_countr )rW r �remove_done_callbackI s zFuture.remove_done_callbackc C sJ | j t k r* t d j | j | � � � | | _ t | _ | j � d S)Nz{}: {!r})r= rO r r: rD r? rQ )r rG r r r � set_resultV s zFuture.set_resultc C s� | j t k r* t d j | j | � � � t | t � rB | � } t | � t k r` t d � � | | _ t | _ | j � t j r� d | _ n( t | | � | _ | j j | j j � d S)Nz{}: {!r}zPStopIteration interacts badly with generators and cannot be raised into a FutureT)r= rO r r: � isinstance�type� StopIteration� TypeErrorr@ r? rQ r �PY34rM r rV r rS r! )r rL r r r � set_exceptionb s zFuture.set_exceptionc c s$ | j � s d | _ | V| j � S)NT)rU r- rG )r r r r �__iter__z s zFuture.__iter__) r r r rO r= rD r@ r r r- rM rV r rE rI rK r rb r+ rR rQ rT rU rG rL rX r\ r] rc rd ZPY35� __await__r r r r r | s6 c C s! | j � r d S| j | � d S)N)rT r] )ZfutrG r r r � _set_result_unless_cancelled� s rf c C sk | j � r | j � | j � s& d S| j � } | d k rN | j | � n | j � } | j | � d S)N)rT rR � set_running_or_notify_cancelrL rc rG r] )� concurrent�sourcerL rG r r r � _set_concurrent_future_state� s rj c C sn | j � r d S| j � r) | j � nA | j � } | d k rQ | j | � n | j � } | j | � d S)N)rT rR rL rc rG r] )ri �destrL rG r r r �_copy_future_state� s rl c s� t � � r/ t � t j j � r/ t d � � t � � r^ t � t j j � r^ t d � � t � � rs � j n d � t � � r� � j n d � d d � � � � � f d d � } � � � � f d d � } � j | � � j | � d S) Nz(A future is required for source argumentz-A future is required for destination argumentc S s- t | � r t | | � n t | | � d S)N)r rl rj )r �otherr r r � _set_state� s z!_chain_future.<locals>._set_statec sE | j � rA � d k s$ � � k r1 � j � n � j � j � d S)N)rT rR �call_soon_threadsafe)� destination)� dest_loopri � source_loopr r �_call_check_cancel� s z)_chain_future.<locals>._call_check_cancelc s? � d k s � � k r( � � | � n � j � � | � d S)N)ro )ri )rn rq rp rr r r �_call_set_state� s z&_chain_future.<locals>._call_set_state)r r^ rh �futuresr ra r rX )ri rp rs rt r )rn rq rp ri rr r � _chain_future� s rv r c C sE t | � r | S| d k r( t j � } | j � } t | | � | S)N)r r r0 Z create_futurerv )r r Z new_futurer r r r � s ) �__all__�concurrent.futures._baserh �loggingrB r3 r r# r r rO rP r? ru �_base�Errorr r �DEBUGZ STACK_DEBUGr r r r rf rj rl rv r r r r r �<module> s4 P � '
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