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'action' -- one of "error", "ignore", "always", "default", "module", or "once" 'message' -- a regex that the warning message must match 'category' -- a class that the warning must be a subclass of 'module' -- a regex that the module name must match 'lineno' -- an integer line number, 0 matches all warnings 'append' -- if true, append to the list of filters r N�error�ignore�always�default�module�oncezinvalid action: %rzmessage must be a stringzcategory must be a classz#category must be a Warning subclasszmodule must be a stringzlineno must be an int >= 0)zerrorzignorezalwayszdefaultzmodulezonce)�re�AssertionError� isinstance�str�type� issubclass�Warning�int�compile�I�filters�append�insert�_filters_mutated)�actionr r r r r- r" �itemr r r r s c C s� | d k s t d | f � � t | t � r: | d k sF t d � � | d | d | f } | rq t j | � n t j d | � t � d S) a� Insert a simple entry into the list of warnings filters (at the front). A simple filter matches all modules and messages. 'action' -- one of "error", "ignore", "always", "default", "module", or "once" 'category' -- a class that the warning must be a subclass of 'lineno' -- an integer line number, 0 matches all warnings 'append' -- if true, append to the list of filters r r r r r r! zinvalid action: %rr zlineno must be an int >= 0N)zerrorzignorezalwayszdefaultzmodulezonce)r# r$ r) r, r- r. r/ )r0 r r r- r1 r r r r = s c C s g t d d � <t � d S)zAClear the list of warning filters, so that no filters are active.N)r, r/ r r r r r R s c @ s e Z d Z d Z d S)� _OptionErrorz,Exception used by option processing helpers.N)r � __module__� __qualname__�__doc__r r r r r2 W s r2 c C sa xZ | D]R } y t | � Wq t k rX } z t d | d t j �WYd d } ~ Xq Xq Wd S)NzInvalid -W option ignored:r )� _setoptionr2 �printr r )�args�arg�msgr r r �_processoptions\ s r; c C sP d d l } | j d � } t | � d k rC t d | f � � n x# t | � d k rh | j d � qF Wd d � | D� \ } } } } } t | � } | j | � } t | � } | j | � } | r� | d } n | r0y% t | � } | d k r� t � n Wq6t t f k r,t d | f � � Yq6Xn d } t | | | | | � d S) Nr �:� ztoo many fields (max 5): %rr c S s g | ] } | j � � q Sr )r )�.0r r r r � <listcomp>k s z _setoption.<locals>.<listcomp>�$zinvalid lineno %r) r" �split�lenr2 r- � _getaction�escape� _getcategoryr) � ValueError� OverflowErrorr )r9 r" �partsr0 r r r r r r r r6 d s. r6 c C sU | s d S| d k r d Sx! d D] } | j | � r! | Sq! Wt d | f � � d S) Nr �allr r r r! r zinvalid action: %r)zdefaultzalwayszignorezmodulezoncezerror)� startswithr2 )r0 �ar r r rC s rC c C s> d d l } | s t S| j d | � rc y t | � } Wqt k r_ t d | f � � YqXn� | j d � } | d | � } | | d d � } y t | d d | g � } Wn% t k r� t d | f � � Yn Xy t | | � } Wn% t k rt d | f � � Yn Xt | t � s:t d | f � � n | S)Nr z^[a-zA-Z0-9_]+$z unknown warning category: %r�.� zinvalid module name: %rz invalid warning category: %r) r" r( �match�eval� NameErrorr2 �rfind� __import__� ImportError�getattr�AttributeErrorr' )r r" �cat�ir �klass�mr r r rE � s, rE rM c C so t | t � r | j } n | d k r0 t } n t | t � sE t � y t j | � } Wn! t k r{ t j } d } Yn X| j } | j } d | k r� | d } n d } | j d � } | r� | j � } | j d � r=| d d � } q=nJ | d k r.y t j d } Wq.t k r*d } Yq.Xn | s=| } n | j d i � } t | | | | | | | � d S) z:Issue a warning, or maybe ignore it or raise an exception.NrM r z<string>�__file__�.pyc�.pyo�__main__r Z__warningregistry__)r[ r\ ���)r$ r( � __class__� UserWarningr' r# r � _getframerF �__dict__� f_globals�f_lineno�get�lower�endswith�argvrU � setdefaultr ) r r � stacklevelZcaller�globalsr r r Zfnl�registryr r r r � s< c C s� t | � } | d k rV | p! d } | d d � j � d k rV | d d � } qV n | d k rk i } n | j d d � t k r� | j � t | d <n t | t � r� t | � } | j } n | } | | � } | | | f } | j | � r� d Sx� t D]| } | \ } } } } } | d k s2| j | � r� t | | � r� | d k s\| j | � r� | d k st| | k r� Pq� q� Wt } | d k r�d | | <d Sd d l } | j | | � | d k r�| � n | d k rd | | <| | f } t j | � rd Sd t | <n� | d k r nt | d k rcd | | <| | d f } | j | � rVd Sd | | <n/ | d k r|d | | <n t d | | f � � t t � s�t d � � n t | | | | � d S)Nz <unknown>� z.py�versionr r rM r r! r r r z1Unrecognized action (%r) in warnings.filters: %sz:warnings.showwarning() must be set to a function or method���ro )r) rf re �_filters_version�clearr$ r( r% r_ r, rN r' � defaultactionr �getlines� onceregistry� RuntimeError�callabler � TypeError)r r r r r rl �module_globals�text�keyr1 r0 r: rV �mod�lnr ZoncekeyZaltkeyr r r r � sn c @ s: e Z d Z d Z d Z d d d d � Z d d � Z d S)�WarningMessagez0Holds the result of a single showwarning() call.r r r r r r Nc C sM t � } x% | j D] } t | | | | � q W| r@ | j n d | _ d S)N)�locals�_WARNING_DETAILS�setattrr �_category_name) �selfr r r r r r � local_values�attrr r r �__init__ s zWarningMessage.__init__c C s& d | j | j | j | j | j f S)NzD{message : %r, category : %r, filename : %r, lineno : %s, line : %r})r r� r r r )r� r r r �__str__# s zWarningMessage.__str__)zmessagezcategoryzfilenamezlinenozfilezline)r r3 r4 r5 r r� r� r r r r r} s r} c @ sR e Z d Z d Z d d d d d d � Z d d � Z d d � Z d d � Z d S)r a� A context manager that copies and restores the warnings filter upon exiting the context. The 'record' argument specifies whether warnings should be captured by a custom implementation of warnings.showwarning() and be appended to a list returned by the context manager. Otherwise None is returned by the context manager. The objects appended to the list are arguments whose attributes mirror the arguments to showwarning(). The 'module' argument is to specify an alternative module to the module named 'warnings' and imported under that name. This argument is only useful when testing the warnings module itself. �recordFr Nc C s8 | | _ | d k r" t j d n | | _ d | _ d S)z�Specify whether to record warnings and if an alternative module should be used other than sys.modules['warnings']. For compatibility with Python 3.0, please consider all arguments to be keyword-only. N�warningsF)�_recordr �modules�_module�_entered)r� r� r r r r r� : s "zcatch_warnings.__init__c C sr g } | j r | j d � n | j t j d k rL | j d | j � n t | � j } d | d j | � f S)Nz record=Truer� z module=%rz%s(%s)z, )r� r- r� r r� r& r �join)r� r8 �namer r r �__repr__F s zcatch_warnings.__repr__c s� | j r t d | � � n d | _ | j j | _ | j d d � | j _ | j j � | j j | _ | j r� g � � f d d � } | | j _ � Sd Sd S)NzCannot enter %r twiceTc s � j t | | � � d S)N)r- r} )r8 �kwargs)�logr r r Y s z-catch_warnings.__enter__.<locals>.showwarning) r� ru r� r, �_filtersr/ r � _showwarningr� )r� r r )r� r � __enter__O s zcatch_warnings.__enter__c G sK | j s t d | � � n | j | j _ | j j � | j | j _ d S)Nz%Cannot exit %r without entering first)r� ru r� r� r, r/ r� r )r� �exc_infor r r �__exit__` s zcatch_warnings.__exit__)r r3 r4 r5 r� r� r� r� r r r r r ) s )r, �_defaultaction� _onceregistryr r r/ Tr c C s t d 7a d S)NrM )rp r r r r r/ s r/ r r r r- �gettotalrefcountr ),r5 r �__all__r r r( r r r � Exceptionr2 r; r6 rC rE r r �objectr} r Z_warnings_defaults� _warningsr, r� r� r/ rr rt rS rp � warnoptions� ImportWarning�PendingDeprecationWarningZsilencer- �DeprecationWarning�cls�flags� bytes_warningZ bytes_action� BytesWarning�hasattrZresource_action�ResourceWarningr r r r �<module> sb )HG.
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