-hKTSrSSKJr SSKrSSKrSSKJr SSKJr SSKJr SSKJ r \ R"S 5r \ R"S 5r \ R"S 5r "S S \5r"SS\5r"SS\R"5r"SS\5rSSjr0r"SS\5rg)z'Base constructs for connection pools. )dequeN)event)exc)log)utilreset_rollback reset_commit reset_nonecD\rSrSrSrSrSrSrSrSr Sr Sr S r S r g ) _ConnDialectzpartial implementation of :class:`.Dialect` which provides DBAPI connection methods. When a :class:`_pool.Pool` is combined with an :class:`_engine.Engine`, the :class:`_engine.Engine` replaces this with its own :class:`.Dialect`. Fc$UR5 gN)rollbackselfdbapi_connections iC:\Users\ROHAN GUPTA\OneDrive\Desktop\mathbuddy-assessment\venv\Lib\site-packages\sqlalchemy/pool/base.py do_rollback_ConnDialect.do_rollback)s!!#c$UR5 gr)commitrs r do_commit_ConnDialect.do_commit,s!rc$UR5 grclosers r do_terminate_ConnDialect.do_terminate/ rc$UR5 grrrs rdo_close_ConnDialect.do_close2r"rc[S5e)NzJThe ping feature requires that a dialect is passed to the connection pool.NotImplementedErrorrs rdo_ping_ConnDialect.do_ping5s! -  rcU$r)r connections rget_driver_connection"_ConnDialect.get_driver_connection;srr,N)__name__ __module__ __qualname____firstlineno____doc__is_async has_terminaterrr r$r)r.__static_attributes__r,rrr r s1HM$"!! rr c\rSrSrSrSrg)_AsyncConnDialect?Tr,N)r0r1r2r3r5r7r,rrr9r9?sHrr9c\rSrSrSr\"5rSSjr\RS5r \ S5r \ RS5r SrSS jrS rSS jrS rS rSrSrSrSrSrSrg)PoolCz)Abstract base class for connection pools.Nc U(aU=UlUlOSUl[R"XS9 XlX lSUlXl[RRU[SS/[/SQ[S/0SS S 9UlX0lU (aUR R#U S S 9 U(aXplU(a#UHup[&R("X U 5 M gg) aC Construct a Pool. :param creator: a callable function that returns a DB-API connection object. The function will be called with parameters. :param recycle: If set to a value other than -1, number of seconds between connection recycling, which means upon checkout, if this timeout is surpassed the connection will be closed and replaced with a newly opened connection. Defaults to -1. :param logging_name: String identifier which will be used within the "name" field of logging records generated within the "sqlalchemy.pool" logger. Defaults to a hexstring of the object's id. :param echo: if True, the connection pool will log informational output such as when connections are invalidated as well as when connections are recycled to the default log handler, which defaults to ``sys.stdout`` for output.. If set to the string ``"debug"``, the logging will include pool checkouts and checkins. The :paramref:`_pool.Pool.echo` parameter can also be set from the :func:`_sa.create_engine` call by using the :paramref:`_sa.create_engine.echo_pool` parameter. .. seealso:: :ref:`dbengine_logging` - further detail on how to configure logging. :param reset_on_return: Determine steps to take on connections as they are returned to the pool, which were not otherwise handled by a :class:`_engine.Connection`. Available from :func:`_sa.create_engine` via the :paramref:`_sa.create_engine.pool_reset_on_return` parameter. :paramref:`_pool.Pool.reset_on_return` can have any of these values: * ``"rollback"`` - call rollback() on the connection, to release locks and transaction resources. This is the default value. The vast majority of use cases should leave this value set. * ``"commit"`` - call commit() on the connection, to release locks and transaction resources. A commit here may be desirable for databases that cache query plans if a commit is emitted, such as Microsoft SQL Server. However, this value is more dangerous than 'rollback' because any data changes present on the transaction are committed unconditionally. * ``None`` - don't do anything on the connection. This setting may be appropriate if the database / DBAPI works in pure "autocommit" mode at all times, or if a custom reset handler is established using the :meth:`.PoolEvents.reset` event handler. * ``True`` - same as 'rollback', this is here for backwards compatibility. * ``False`` - same as None, this is here for backwards compatibility. For further customization of reset on return, the :meth:`.PoolEvents.reset` event hook may be used which can perform any connection activity desired on reset. (requires version 1.4.43 or greater) .. seealso:: :ref:`pool_reset_on_return` :param events: a list of 2-tuples, each of the form ``(callable, target)`` which will be passed to :func:`.event.listen` upon construction. Provided here so that event listeners can be assigned via :func:`_sa.create_engine` before dialect-level listeners are applied. :param dialect: a :class:`.Dialect` that will handle the job of calling rollback(), close(), or commit() on DBAPI connections. If omitted, a built-in "stub" dialect is used. Applications that make use of :func:`_sa.create_engine` should not use this parameter as it is handled by the engine creation strategy. .. versionadded:: 1.1 - ``dialect`` is now a public parameter to the :class:`_pool.Pool`. :param pre_ping: if True, the pool will emit a "ping" (typically "SELECT 1", but is dialect-specific) on the connection upon checkout, to test if the connection is alive or not. If not, the connection is transparently re-connected and upon success, all other pooled connections established prior to that timestamp are invalidated. Requires that a dialect is passed as well to interpret the disconnection error. .. versionadded:: 1.2 N)echoflagrrT)noneNFrreset_on_returnF)resolve_symbol_names)only_propagate) logging_name_orig_logging_namerinstance_logger_creator_recycle_invalidate_time _pre_pingrsymbolparse_user_argumentr r r _reset_on_returnechodispatch_update_dialectrlisten) rcreatorrecyclerNrDrAeventsdialectpre_ping _dispatchfntargets r__init__ Pool.__init__IsZ :F FD  7&*D # D0  !! $ ? ? T 21xj  !&!@ !   MM ! !)E ! B #M $  T2.% rc.URR$r)rQr5rs r _is_asyncioPool._is_asyncios}}%%%rc URS$NrG)__dict__r^s rrG Pool._creators}}Z((rcLXRS'URU5Ulgrb)rc_should_wrap_creator_invoke_creator)rrSs rrGrds!$+ j!#88Arc^[R"URSS9nUSSL=(a [ US5=(d Sn[ US5U- nUSUS4S/S4:XaT$US :XaT$U4S j$![a U4Sjs$f=f) z\Detect if creator accepts a single argument, or is sent as a legacy style no-arg function. T)no_selfc>T"5$rr,crecrSs r+Pool._should_wrap_creator.. rNrconnection_recordrc>T"5$rr,rks rrmrnror)rget_callable_argspecrG TypeErrorlen)rrSargspec defaulted positionalss ` rrfPool._should_wrap_creators  *// tLGAJd*>s71:C! '!*o 1  AJ #)<(=w'G GN A N* )! *) ) *sA99B  B c^URRSU(aSOSU5 U(aURRU5 gURR U5 g![ a;nURR SUSS9 [U[5(deSnAgSnAff=f)Nz%s connection %rz Hard-closingClosingzException closing connection %rTexc_info) loggerdebugrQr r$ BaseExceptionerror isinstance Exception)rr- terminatees r_close_connectionPool._close_connections  'NY   **:6 &&z2  KK  1:  a++,  s"A' A'' B,11B''B,c[U5$)z6Called by subclasses to create a new ConnectionRecord.)_ConnectionRecordr^s r_create_connectionPool._create_connections!&&rc[USS5nU(aURUR:a[R"5UlU(a%[USS5(aUR U5 ggg)abMark all connections established within the generation of the given connection as invalidated. If this pool's last invalidate time is before when the given connection was created, update the timestamp til now. Otherwise, no action is performed. Connections with a start time prior to this pool's invalidation time will be recycled upon next checkout. _connection_recordNis_validF)getattrrI starttimetime invalidate)rr- exception_checkinrecs r _invalidatePool._invalidates[j"6=d++cmm;$(IIKD !  J>>  ! !) ,?8rc[5e)zReturn a new :class:`_pool.Pool`, of the same class as this one and configured with identical creation arguments. This method is used in conjunction with :meth:`dispose` to close out an entire :class:`_pool.Pool` and create a new one in its place. r'r^s rrecreate Pool.recreate$s "##rc[5e)zDispose of this pool. This method leaves the possibility of checked-out connections remaining open, as it only affects connections that are idle in the pool. .. seealso:: :meth:`Pool.recreate` r'r^s rdispose Pool.dispose0s "##rc,[RU5$)zReturn a DBAPI connection from the pool. The connection is instrumented such that when its ``close()`` method is called, the connection will be returned to the pool. )_ConnectionFairy _checkoutr^s rconnect Pool.connect?s ))$//rc&URU5 g)zGiven a _ConnectionRecord, return it to the :class:`_pool.Pool`. This method is called when an instrumented DBAPI connection has its ``close()`` method called. N)_do_return_conn)rrecords r _return_connPool._return_connIs V$rc[5e)z7Implementation for :meth:`get`, supplied by subclasses.r'r^s r_do_get Pool._do_getR "##rc[5e)z?Implementation for :meth:`return_conn`, supplied by subclasses.r')rconns rrPool._do_return_connWrrc[5err'r^s rstatus Pool.status\s !##r) rGrQrIrgrErJrHrMrNrD)NNTNNFNF)NT)r0r1r2r3r4r rQr[rhybridpropertyr_propertyrGsetterrfrrrrrrrrrrr7r,rrr<r<Cs3~H  J/X &&))__BB*4$' -" $ $0%$ $ $rr<c4\rSrSrSrSSjrSrSrSrSr \ S5r \ S5r \ RS5r S r\R S 5r\R S 5r\S 5rSS jrSSjr\ S5r\ S5rSrSSjrSrSrSSjrSrSrg)ri`aeInternal object which maintains an individual DBAPI connection referenced by a :class:`_pool.Pool`. The :class:`._ConnectionRecord` object always exists for any particular DBAPI connection whether or not that DBAPI connection has been "checked out". This is in contrast to the :class:`._ConnectionFairy` which is only a public facade to the DBAPI connection while it is checked out. A :class:`._ConnectionRecord` may exist for a span longer than that of a single DBAPI connection. For example, if the :meth:`._ConnectionRecord.invalidate` method is called, the DBAPI connection associated with this :class:`._ConnectionRecord` will be discarded, but the :class:`._ConnectionRecord` may be used again, in which case a new DBAPI connection is produced when the :class:`_pool.Pool` next uses this record. The :class:`._ConnectionRecord` is delivered along with connection pool events, including :meth:`_events.PoolEvents.connect` and :meth:`_events.PoolEvents.checkout`, however :class:`._ConnectionRecord` still remains an internal object whose API and internals may change. .. seealso:: :class:`._ConnectionFairy` c\XlU(aUR5 [5Ulgr)_ConnectionRecord__pool_ConnectionRecord__connectrfinalize_callback)rpoolrs rr[_ConnectionRecord.__init__s  NN !&rFNc|URcgURRRUR5$)aThe connection object as returned by the driver after a connect. For normal sync drivers that support the DBAPI protocol, this object is the same as the one referenced by :attr:`._ConnectionRecord.dbapi_connection`. For adapted drivers, like the Asyncio ones, this is the actual object that was returned by the driver ``connect`` call. As :attr:`._ConnectionRecord.dbapi_connection` it may be ``None`` if this :class:`._ConnectionRecord` has been marked as invalidated. .. versionadded:: 1.4.24 N)rrrQr.r^s rdriver_connection#_ConnectionRecord.driver_connections9$  (;;''==%% rcUR$)zAn alias to :attr:`._ConnectionRecord.dbapi_connection`. This alias is deprecated, please use the new name. .. deprecated:: 1.4.24 rr^s rr-_ConnectionRecord.connection$$$rcXlgrrrvalues rr-r %rrc0$)aThe ``.info`` dictionary associated with the DBAPI connection. This dictionary is shared among the :attr:`._ConnectionFairy.info` and :attr:`_engine.Connection.info` accessors. .. note:: The lifespan of this dictionary is linked to the DBAPI connection itself, meaning that it is **discarded** each time the DBAPI connection is closed and/or invalidated. The :attr:`._ConnectionRecord.record_info` dictionary remains persistent throughout the lifespan of the :class:`._ConnectionRecord` container. r,r^s rinfo_ConnectionRecord.infos " rc0$)a}An "info' dictionary associated with the connection record itself. Unlike the :attr:`._ConnectionRecord.info` dictionary, which is linked to the lifespan of the DBAPI connection, this dictionary is linked to the lifespan of the :class:`._ConnectionRecord` container itself and will remain persistent throughout the life of the :class:`._ConnectionRecord`. .. versionadded:: 1.1 r,r^s r record_info_ConnectionRecord.record_infos  rc^^^TR5mTR5nTR 5m[UTT5n[R"UUUU4Sj5=Tl nT[U'T(aTRRSU5 U$![aEn[R"5 TR USS9 SSS5 e!,(df  e=fSnAff=f)NF_fairy_was_createdc :>[=(a [STTUTSS9$)NFtransaction_was_reset)_finalize_fairy)refrNrrs rrm,_ConnectionRecord.checkout..s$c4d%rz#Connection %r checked out from pool)rget_connectionrr safe_reraise_checkin_failed_should_log_debugrweakrefr fairy_ref_strong_ref_connection_recordsrr)clsrrerrfairyrrNrs ` @@rcheckout_ConnectionRecord.checkoutslln "113 %%' !13=%kk     /2&s+  KK  57G  - ""$##CE#B%  %$   s/B C#C3C  C C CC#c@URUS9 URUS9 g)Nrr)rcheckin)rrrs rr!_ConnectionRecord._checkin_faileds$ # 1  rcURc!U(a[R"SU-5 gSUlURnURnUR (a5UR R 5nU"U5 UR (aM5URR(aURRX 5 URU5 g)NzDouble checkin attempted on %s) rrwarnrrrpoprOrr)rrr-r finalizers rr_ConnectionRecord.checkins >> !&8 II6= > ** {{$$..224I j !$$$ == MM ! !* 3 $rcURSL$r)rr^s rin_use_ConnectionRecord.in_use$s~~T))rcUR$r)rr^s rlast_connect_time#_ConnectionRecord.last_connect_time(s ~~rc@URbUR5 ggr)r_ConnectionRecord__closer^s rr_ConnectionRecord.close,s  , LLN -rc|URcgU(a1URRRURX5 O0URRR URX5 UbQURR R SU(aSOSURURRU5 O:URR R SU(aSOSUR5 U(a[R"5Ul gURSS9 SUlg)aPInvalidate the DBAPI connection held by this :class:`._ConnectionRecord`. This method is called for all connection invalidations, including when the :meth:`._ConnectionFairy.invalidate` or :meth:`_engine.Connection.invalidate` methods are called, as well as when any so-called "automatic invalidation" condition occurs. :param e: an exception object indicating a reason for the invalidation. :param soft: if True, the connection isn't closed; instead, this connection will be recycled on next checkout. .. versionadded:: 1.0.3 .. seealso:: :ref:`pool_connection_invalidation` Nz*%sInvalidate connection %r (reason: %s:%s)zSoft z%sInvalidate connection %rTr) rrrOsoft_invalidaterrr __class__r0r_soft_invalidate_timerrrsofts rr_ConnectionRecord.invalidate0s0  (   KK 0 0%%t  KK + +D,A,A4 K = KK   # #<R%% $$   KK   # #,R%%  )-D & LL4L ($(D !rcdSnURc,URR5 UR5 GO*URR S:am[ R "5UR- URR :a3URRRSUR5 SnOURRUR:a3URRRSUR5 SnOLURUR:a2URRRSUR5 SnU(a9URSS9 URR5 UR5 UR$)NFrz)Connection %r exceeded timeout; recyclingTz=Connection %r invalidated due to pool invalidation; recyclingzCConnection %r invalidated due to local soft invalidation; recyclingr) rrclearrrrHrrrrIrr)rrTs rr _ConnectionRecord.get_connectionesB  ( IIOO  NN  KK 2 % dnn,t{{/C/CC KK   # #;%% G [[ ) )DNN : KK   # #%%  G  ' '$.. 8 KK   # #%%  G  LL4L ( IIOO  NN $$$rcURSL=(dC URRUR:=(d URUR:$r)rrrIrrr^s r_is_hard_or_soft_invalidated._ConnectionRecord._is_hard_or_soft_invalidatedsG  ! !T ) ={{++dnn< =**T^^; rc8URR5 URRR(a0URRR UR U5 URR UR US9 SUlg)Nr)rrrrOrrr)rrs r__close_ConnectionRecord.__closess $$& ;;   % % KK & &t'<'%$$$ ?s6AD E;"E67E!E6! E3 +E63E66E;)__poolrrrrr r)TNFr) r0r1r2r3r4r[r rrrrrr-rrrmemoized_propertyrr classmethodrrrrrrrrrrrr7r,rrrr`s >) EII 0%%&& $   8  ,**3)j/%b %ErrcU(a[RUS5 O1U(a*[R[R"U5S5 Ub!URULagUbeUR nUR R=(a UR R(+nU(aU(+=(d UnU(+n O U(+nSn UGbU(a#U(aURRSU5 U=(d [UUU5nUR ULdeU (aURX%5 U(aU(aX&l UR5 U (aHURR (aURR!U5 UR#U5 O6SU-n URR%U 5 [&R("U 5 U(aURbUR35 ggg![*aPn URR%SSS9 U(aUR-U S9 [/U [05(deSn A N|Sn A ff=f)aKCleanup for a :class:`._ConnectionFairy` whether or not it's already been garbage collected. When using an async dialect no IO can happen here (without using a dedicated thread), since this is called outside the greenlet context and with an already running loop. In this case function will only log a message and raise a warning. NTz$Connection %r being returned to pooladThe garbage collector is trying to clean up connection %r. This feature is unsupported on unsupported on asyncio dbapis that lack a "terminate" feature, since no IO can be performed at this stage to reset the connection. Please close out all connections when they are no longer used, calling ``close()`` or using a context manager to manage their lifetime.z!Exception during reset or similarr}r)rrrrrrrQr5r6rrr_reset_pooldetachrOclose_detachedrrrrrrrrr) rrqrrrNrrdont_restore_gcedrcan_manipulate_connectionmessagers rrrs$ &**35 &**7;;u+=tD   & &c 1 ''',== Bt}}'B'B#B&&-#(+G!&&$(!#  KK  6   * - !E ))-== ==( T9$"&KLLN,}}33 445EF**+;<1) )GKK%%g.IIg&.88D!!#E  KK  3d  !!,,q,1a++,  s B1H56H I,AI''I,c \rSrSrSrSrSrSr\S5r \S5r \ RS5r \ SSj5r S rSS jr\rSS jr\S 5r\S 5r\R*S5r\S5rSSjrSrSrSrSrSSjrSrg)ri*a2Proxies a DBAPI connection and provides return-on-dereference support. This is an internal object used by the :class:`_pool.Pool` implementation to provide context management to a DBAPI connection delivered by that :class:`_pool.Pool`. The name "fairy" is inspired by the fact that the :class:`._ConnectionFairy` object's lifespan is transitory, as it lasts only for the length of a specific DBAPI connection being checked out from the pool, and additionally that as a transparent proxy, it is mostly invisible. .. seealso:: :class:`._ConnectionRecord` c(XlX lX0lgr)rr_echo)rrrqrNs rr[_ConnectionFairy.__init__?s 0"3 rNc.URR$)zThe connection object as returned by the driver after a connect. .. versionadded:: 1.4.24 .. seealso:: :attr:`._ConnectionFairy.dbapi_connection` :attr:`._ConnectionRecord.driver_connection` :ref:`faq_dbapi_connection` )rrr^s rr"_ConnectionFairy.driver_connection[s&&888rcUR$)zAn alias to :attr:`._ConnectionFairy.dbapi_connection`. This alias is deprecated, please use the new name. .. deprecated:: 1.4.24 rr^s rr-_ConnectionFairy.connectionlrrcXlgrrrs rr-r$wrrc$U(d@[RU5nXlSUlUb[R "U5UlURc[R"S5eU=RS- slURR(dUR(aURS:waU$SnUS:GaZWRRnSURl UR(aU(dUR(a&URR!SUR5 UR"R%UR5nU(dLUR(a&URR!SUR5 [R&"5eO7UR(a&URR!SUR5 URRURURU5 U$URR-S5 WR/5 [R"S5e![R(Ga0nUR*(aHURR-S U5 URR/U5 UR1X7SS 9 OBURR-S URU5 URR/U5 URR35UlOe![4aXn[6R8"5 URR;US S 9 ASSS5 SnAO!,(df  SnAO =fSnAff=fUS-nSnAOeSnAf[4aUn [6R8"5 URn U bU R;U S S 9 ASSS5 e!,(df  e=fSn A ff=fUS:aGMIGN)NrzThis connection is closedrrrFzPool pre-ping on connection %sz;Pool pre-ping on connection %s failed, will invalidate poolz)Connection %s is fresh, skipping pre-pingzoDisconnection detected on checkout, invalidating all pooled connections prior to current timestamp (reason: %r))rzVDisconnection detected on checkout, invalidating individual connection %s (reason: %r)Trz+Reconnection attempts exhausted on checkout)rrr_counterrrcurrentrrInvalidRequestErrorrOrJrr rrrrQr)InvalidatePoolErrorDisconnectionErrorinvalidate_poolrrrrrrrr) rr threadconnsrattemptsconnection_is_freshresultrrbe_outerrs rr_ConnectionFairy._checkout{sR%..t4EKEN&&-kk%&8 #  ! ! )))*EF F ! &&t~~ ^^q Ll"'":":"@"@ -2E $ $ *N >>. ;; KK-- @ % 6 6"&!6!6u7M7M!N%${{ $ 1 1%;$)$:$:!" #&"9"9";; & ))G!22  &&**E,D,De l FG %%&ABBo))$ $$KK$$9  ,,77:$$U$>KK$$M..  ,,77:"00??A*% "**,00@@/3A"-,,, "A   &&(22C++$/3,))( Glls/D1I""P7BN"L32N"3 N=NM;.N6N"; N NN" NNN"" P/O?!O.% O?. O< 8O??Pc>[RURUS9$)N)r)rrrr^s r_checkout_existing#_ConnectionFairy._checkout_existings))$**D)AArc [URURURSURUUS9 SUlSUlg)N)rr)rrrrr)rrs rr_ConnectionFairy._checkinsE  ! !  # # JJ  JJ"7 !%"&rcURR(a%URRXR5 UR[LaU(a9UR (a'UR RSUR5 ggUR (a&UR RSUR5 URRU5 gUR[LaSUR (a&UR RSUR5 URRU5 gg)Nz.Connection %s reset, transaction already resetz Connection %s rollback-on-returnzConnection %s commit-on-return) rOresetrrMr rrrrrQrr r)rrrs rr_ConnectionFairy._resets ==   MM  &=&= >  N 2$::KK%%H-- ::KK%%:-- ))$/  " "l 2zz !!4)) MM # #D ) 3rc.URR$r)rrr^s r_logger_ConnectionFairy._loggerszz   rcURSL$)zZReturn True if this :class:`._ConnectionFairy` still refers to an active DBAPI connection.Nrr^s rr_ConnectionFairy.is_valids $$D00rc.URR$)aBInfo dictionary associated with the underlying DBAPI connection referred to by this :class:`.ConnectionFairy`, allowing user-defined data to be associated with the connection. The data here will follow along with the DBAPI connection including after it is returned to the connection pool and used again in subsequent instances of :class:`._ConnectionFairy`. It is shared with the :attr:`._ConnectionRecord.info` and :attr:`_engine.Connection.info` accessors. The dictionary associated with a particular DBAPI connection is discarded when the connection itself is discarded. )rrr^s rr_ConnectionFairy.info"s"&&+++rcRUR(aURR$g)agInfo dictionary associated with the :class:`._ConnectionRecord container referred to by this :class:`.ConnectionFairy`. Unlike the :attr:`._ConnectionFairy.info` dictionary, the lifespan of this dictionary is persistent across connections that are disconnected and/or invalidated within the lifespan of a :class:`._ConnectionRecord`. .. versionadded:: 1.1 N)rrr^s rr_ConnectionFairy.record_info5s"  " "**66 6rcURc[R"S5 gUR(aURR XS9 U(dSUlUR 5 gg)auMark this connection as invalidated. This method can be called directly, and is also called as a result of the :meth:`_engine.Connection.invalidate` method. When invoked, the DBAPI connection is immediately closed and discarded from further use by the pool. The invalidation mechanism proceeds via the :meth:`._ConnectionRecord.invalidate` internal method. :param e: an exception object indicating a reason for the invalidation. :param soft: if True, the connection isn't closed; instead, this connection will be recycled on next checkout. .. versionadded:: 1.0.3 .. seealso:: :ref:`pool_connection_invalidation` Nz.Can't invalidate an already-closed connection.)rr)rrrrrrrs rr_ConnectionFairy.invalidateGsY,  ( IIF G   " "  # # . . . >$(D ! MMOrc:URR"U0UD6$)zReturn a new DBAPI cursor for the underlying connection. This method is a proxy for the ``connection.cursor()`` DBAPI method. )rcursor)rargskwargss rrG_ConnectionFairy.cursorfs $$++T'> ? (DI&*D #zz"")) ##**4+@+@#F* /rcpU=RS-slURS:XaUR5 gg)Nrrrr'rr^s rr_ConnectionFairy.closes*  ==A  MMO rcnU=RS-slURS:XaURUS9 gg)NrrrrrS)rtransaction_resets r_close_special_ConnectionFairy._close_specials0  ==A  MM0AM B r)rrrr)NNrr)r0r1r2r3r4r[rrrrr-rrrr4r_closerr<rrrrrrrGrMrrrWr7r,rrrr*s&  99 %%&&nCnC`B 'F*2!!11  ,,$">=3G2 Crr)FN)r4 collectionsrrrrrrrrrKr r r objectr r9 Identifiedr<rrrrr,rrr]s -.{{>* [[ &  6 F Z$3>>Z$z`E`ER  ]$H"$iCviCr