Edit File: pydoc.cpython-37.pyc
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Or, at the shell command line outside of Python: Run "pydoc <name>" to show documentation on something. <name> may be the name of a function, module, package, or a dotted reference to a class or function within a module or module in a package. If the argument contains a path segment delimiter (e.g. slash on Unix, backslash on Windows) it is treated as the path to a Python source file. Run "pydoc -k <keyword>" to search for a keyword in the synopsis lines of all available modules. Run "pydoc -n <hostname>" to start an HTTP server with the given hostname (default: localhost) on the local machine. Run "pydoc -p <port>" to start an HTTP server on the given port on the local machine. Port number 0 can be used to get an arbitrary unused port. Run "pydoc -b" to start an HTTP server on an arbitrary unused port and open a Web browser to interactively browse documentation. Combine with the -n and -p options to control the hostname and port used. Run "pydoc -w <name>" to write out the HTML documentation for a module to a file named "<name>.html". Module docs for core modules are assumed to be in https://docs.python.org/X.Y/library/ This can be overridden by setting the PYTHONDOCS environment variable to a different URL or to a local directory containing the Library Reference Manual pages. �helpzKa-Ping Yee <ping@lfw.org>z26 February 2001z�Guido van Rossum, for an excellent programming language. Tommy Burnette, the original creator of manpy. Paul Prescod, for all his work on onlinehelp. 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r; r� r r �getattr_staticr, rO rP rs r) r� r r r r� )r> r r( r/ r r rF rE rQ rS �note�skipdocs�imclassr� ZreallinkrW rO rV r" r r r r� � sX zHTMLDoc.docroutinec C sT g }|j }|r|d| � |jd k rB| �t|�| j�}|d| � |d� d�|�S )Nz!<dl><dt><strong>%s</strong></dt> z<dd><tt>%s</tt></dd> z</dl> r )r rV r r r� r! )r> r( rH r/ rf r: r" r r r r> � s zHTMLDoc._docdescriptorc C s | � |||�S )z*Produce html documentation for a property.)r> )r> r r( r/ rE r r r r� � s zHTMLDoc.docpropertyc G s |r d| pd}|| � |� S )z-Produce HTML documentation for a data object.z<strong>%s</strong> = r )r� )r> r r( r/ r0 Zlhsr r r r� � s zHTMLDoc.docotherc C s | � |||�S )z1Produce html documentation for a data descriptor.)r> )r> r r( r/ rE r r r r� � s zHTMLDoc.docdatac C s� g }|dkri }xLt �|g�D ]<\}}}tdd� |D ��r<q |�|d|||kf� d||< q W |�� | �|| j�}| �|dd|�S )z2Generate an HTML index for a directory of modules.Nc s s* | ]"}d t |� ko dkn V qdS )i � i�� N)�ord)ri �chr r r � <genexpr> s z HTMLDoc.index.<locals>.<genexpr>r r z#ffffffz#ee77aa)r, r- �anyr rt r r r� )r> r r r5 r6 r( r7 r� r r r �index� s z HTMLDoc.index)r )r� r Nr� )r| )N)NN)NNN)NN)NNN)N) r% r& rU rV r� �_repr_instancer� r� r� r� r� r� r� r r r r r r r r r r� r� rY r� r> r� r� r� rb r r r r r� � s< + y $: r� c @ s4 e Zd ZdZdd� Zdd� Zdd� ZeZdd � Zd S ) �TextReprzAClass for safely making a text representation of a Python object.c C s, t �| � d | _| _d| _d | _| _d S )Nr� r� r� )r rw r� r� r� r� r� )r> r r r rw s zTextRepr.__init__c C sT t t|�d�r@dd�t|�j�� � }t | |�r@t| |�||�S ttt|��| j �S )Nr% r� r] ) ra r� r! r% r r< r3 r5 r� r� )r> rL r� r� r r r r� s zTextRepr.repr1c C sH t || j�}t|�}d|krDdt|dd�krDd|d | |d S |S )Nr~ z\\r r� r )r3 r� r� r/ )r> rL r� r� r� r r r r� s zTextRepr.repr_stringc C s, yt tt|��| j�S d|jj S d S )Nz <%s instance>)r3 r5 r� r� r� r% )r> rL r� r r r r� ( s zTextRepr.repr_instanceN) r% r& rU rV rw r� r� r� r� r r r r rd s rd c @ s� e Zd ZdZe� ZejZdd� Zd dd�Zdd� Z d d d �Z d d d�Z d dd�Z dd� Z d!dd�Zdd� Zd"dd�Zd#dd�Zd$dd �Zd S )%�TextDocz'Formatter class for text documentation.c C s d� dd� |D ��S )z(Format a string in bold by overstriking.r c s s | ]}|d | V qdS )�Nr )ri r_ r r r r` 8 s z TextDoc.bold.<locals>.<genexpr>)r! )r> r. r r r �bold6 s z TextDoc.bold� c s> |sdS � fdd�|� d�D �}|r4|d �� |d< d�|�S )z6Indent text by prepending a given prefix to each line.r c s g | ] }� | �qS r r )ri r� )�prefixr r r� = s z"TextDoc.indent.<locals>.<listcomp>r r} )r r r! )r> r. ri r# r )ri r �indent: s zTextDoc.indentc C s$ | � |��� }| �|�d | d S )z&Format a section with a given heading.r z )rj r rg )r> r� r� Zclean_contentsr r r r� A s zTextDoc.sectionNr c s� d}x�|D ]�}t |�t d�krt|\}}|| t|� � }|rj||fkrj� fdd�|D �} |dd�| � }|d }q t |�t g �kr || �|� ||d � }q W |S ) zBRender in text a class tree as returned by inspect.getclasstree().r r c 3 s | ]}t |� �V qd S )N)r) )ri r )r' r r r` P s z%TextDoc.formattree.<locals>.<genexpr>z(%s)z, r z )r� r) r! r ) r> r r' r ri r r r r! r" r )r' r r H s zTextDoc.formattreec C sD |j }tt|��\}}| �d||o(d| �}t|dd�}| �|�}|dk r`|| �d|d � }|rt|| �d|� }g } xNt�|tj�D ]<\} } |dk s�t� | �p�||kr�t | ||�r�| � | | f� q�W g } xXt�|tj �D ]F\} } |dk �st� | ��st� | �|kr�t | ||�r�| � | | f� q�W g } x6t�|t�D ]&\} } t | ||��r8| � | | f� �q8W g }t� }t|d��r�xFt�|j�D ]6\}}}|�|� |�r�|� |d � n |� |� �q�W |�� || �d d �|�� }g }xBt�|tj�D ]0\} } | j �|d ��r�| |k�r�|� | � �q�W |�rJ|�� || �d d �|�� }| �r�dd� | D �}| �t�|d�|�g}x&| D ] \} } |� | �| | |�� �qzW || �dd �|�� }| �r�g }x&| D ] \} } |� | �| | |�� �q�W || �dd �|�� }| �rFg }x*| D ]"\} } |� | j | | |dd�� �q W || �dd �|�� }t|d��r�t |j �}|dd� dk�r�|dd� dk�r�|dd� � � }|| �d|� }t|d ��r�|| �d t |j �� }t|d ��r�|| �d t |j!�� }t|d ��r|| �d!t |j"�� }yt�#|�}W n t$k �r. d"}Y nX || �d#|� }|S )$z5Produce text documentation for a given module object.�NAMEz - r& NzMODULE REFERENCEa. 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You are now leaving help and returning to the Python interpreter. 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Executing "help('string')" has the same effect as typing a particular string at the help> prompt. )�_GoInteractiver �intro�interactr� r� )r> �requestr r r �__call__a s zHelper.__call__c C s� | j �d� x�y| �d�}|s P W n ttfk r< P Y nX |�� }t|�dkr�|d |d krndkr�n n |d |dd� kr�|dd� }|�� dkr�P |d kr�| �� q| � |� qW d S ) Nr zhelp> r r r} )r� r r )r� �quitr ) r� r� �getliner� �EOFErrorr r r� r r )r> r r r r r n s" , zHelper.interactc C s8 | j tjkrt |�S | j�|� | j�� | j �� S dS )z.Read one line, using input() when appropriate.N)r r r~ r� r� r� r )r> �promptr r r r � s zHelper.getlinec C s< t |�t d�k�r|�� }|dkr,| �� n�|dkr>| �� n�|dkrP| �� n�|dkrb| �� n�|d d� dkr�| �|�� d � n�|| jkr�| �|� nj|d kr�t t |�d � nR|| j kr�| � |� n<|| j kr�| � |� n&|r�t |d | jd � nt td | jd � n$t|t��r | � nt |d | jd � | j�d � d S ) Nr �keywords�symbols�topicsr� � zmodules r )r� r� r� z Help on %s:)r� r )r� r � listkeywords� listsymbols� listtopics� listmodulesr r � showsymbolr" �evalr � showtopicr r r) r� r� r� r� )r> r r r r r � s6 z Helper.helpc C s$ | j �d�dtjd d� �� d S )Na� Welcome to Python {0}'s help utility! If this is your first time using Python, you should definitely check out the tutorial on the Internet at https://docs.python.org/{0}/tutorial/. Enter the name of any module, keyword, or topic to get help on writing Python programs and using Python modules. To quit this help utility and return to the interpreter, just type "quit". To get a list of available modules, keywords, symbols, or topics, type "modules", "keywords", "symbols", or "topics". Each module also comes with a one-line summary of what it does; to list the modules whose name or summary contain a given string such as "spam", type "modules spam". z%d.%dr )r� r� r� r r� )r> r r r r � s z Helper.intror| �P c C s� t t|��}|| }t|�| d | }x�t|�D ]z}xht|�D ]\}|| | }|t|�k r@| j�|| � ||d k r@| j�dd|d t|| � � q@W | j�d� q2W d S )Nr r� r )r� �sortedr r� r� r� ) r> �items�columnsr� Zcolwr �rowr rj r r r r� � s (z Helper.listc C s | j �d� | �| j�� � d S )NzN Here is a list of the Python keywords. Enter any keyword to get more help. )r� r� r� r rD )r> r r r r � s zHelper.listkeywordsc C s | j �d� | �| j�� � d S )Nzx Here is a list of the punctuation symbols which Python assigns special meaning to. Enter any symbol to get more help. )r� r� r� r rD )r> r r r r! � s zHelper.listsymbolsc C s | j �d� | �| j�� � d S )NzN Here is a list of available topics. Enter any topic name to get more help. )r� r� r� r rD )r> r r r r" � s zHelper.listtopicsc C s, y dd l }W n tk r, | j�d� d S X | j�|| j�|��}|s`| j�dt|� � d S t|�td�kr|| � ||�S |\}}y|jj| }W n( t k r� | j�dt|� � d S X |� � d }|r�|p�dd | }|�r dd l }dd� |�� � d } |�| d �} |d d� | � 7 }t|� d S ) Nr zt Sorry, topic and keyword documentation is not available because the module "pydoc_data.topics" could not be found. z no documentation found for %s r r r� zRelated help topics: z, �H z %s )�pydoc_data.topicsr� r� r� r rm r r� r� r& �KeyErrorr �textwrapr! r Zwraprw ) r> �topic� more_xrefs� pydoc_data�target�label�xrefsr" r/ r. Z wrapped_textr r r r& � s6 zHelper.showtopicc C s� y ddl }W n tk r dS X | j�|| j�|��}|sDtd��t|t�rZ| �||�S |\}}|jj| }|r�|pxdd | }||fS )a* Return unbuffered tuple of (topic, xrefs). If an error occurs here, the exception is caught and displayed by the url handler. This function duplicates the showtopic method but returns its result directly so it can be formatted for display in an html page. r N)zt Sorry, topic and keyword documentation is not available because the module "pydoc_data.topics" could not be found. r zcould not find topicr r� ) r- r� r rm r rP r� r) � _gettopic)r> r0 r1 r2 r3 r4 r5 r" r r r r6 � s zHelper._gettopicc C s* | j | }|�d�\}}}| �||� d S )Nr� )r � partitionr& )r> �symbolr3 r0 r] r5 r r r r$ s zHelper.showsymbolc sv |r | j �d�|�� t|� nR| j �d� i }|fdd�� � fdd�}t� j� |d� | �|�� � | j �d� d S ) Nzy Here is a list of modules whose name or summary contains '{}'. If there are any, enter a module name to get more help. zI Please wait a moment while I gather a list of all available modules... c S s> |r$|dd � dkr$|d d� d }|� d�dk r:d||< d S )Ni����z .__init__z (package)r r r )�find)r r' rq r� r r r �callback# s z$Helper.listmodules.<locals>.callbackc s � d | d � d S )Nr )r' )r: r r �onerror( s z#Helper.listmodules.<locals>.onerror)r; z� Enter any module name to get more help. Or, type "modules spam" to search for modules whose name or summary contain the string "spam". )r� r� r� �apropos� ModuleScanner�runr� rD )r> rG r� r; r )r: r r# s zHelper.listmodules)r� r� r r� )NN)r| r' )r )r )r )!r% r& rU r Z _strprefixesZ_symbols_inverser r) r0 Zsymbols_r8 rm r rw r� r r� r r r r r r r r r� r r! r" r& r6 r$ r# r r r r r� � s6 r� c @ s e Zd ZdZddd�ZdS )r= z7An interruptible scanner that searches module synopses.Nc C s |r |� � }d| _i }xztjD ]p}|dkr d||< |d krH|d |d� q t|�jpTd}|�d�d }|d | }|� � �|�dkr |d ||� q W �xdtj |d�D �]R\} }} | jr�P |d kr�|d |d� q�yt� | |�} W n t k r� w�Y nX | j } t | d ��rny| �|�} W n& tk �r: |�r4||� w�Y nX tt�| ���pNd}t | d ��rh| �|�}nd }n^ytj�| �}W n& tk �r� |�r�||� w�Y nX |j�r�|j�� d nd}t|d d �}|d | }|� � �|�dkr�||||� q�W |�r|� d S ) NF�__main__r r r r z - )r; � get_source� get_filenamer[ )r� r r r� r� rV r r9 r, r� � _get_specr� r� ra r@ r= r� r� �StringIOrA r� r� r� r� r� r< )r> r: rG Z completerr; �seenr' r( rq r6 r7 r� r� �sourcer r� r r r r> 6 s` zModuleScanner.run)NNN)r% r& rU rV r> r r r r r= 3 s r= c C sD dd� }dd� }t �� �" t �d� t� j|| |d� W dQ R X dS )zAPrint all the one-line module summaries that contain a substring.c S s6 |dd � dkr |d d� d }t ||o.d| � d S )Ni����z .__init__z (package)z- )r� )r r' rq r r r r: r s zapropos.<locals>.callbackc S s d S )Nr )r' r r r r; v s zapropos.<locals>.onerror�ignore)r; N)�warnings�catch_warnings�filterwarningsr= r> )rG r: r; r r r r< p s r< c s� ddl �ddl�ddl�ddl�G dd� d�jj�� G �fdd�d�jj��G � ����fdd�d�j�}|| ||�}|�� x|j s�|j s�t � d � q�W |S ) aA Start an HTTP server thread on a specific port. Start an HTML/text server thread, so HTML or text documents can be browsed dynamically and interactively with a Web browser. Example use: >>> import time >>> import pydoc Define a URL handler. To determine what the client is asking for, check the URL and content_type. Then get or generate some text or HTML code and return it. >>> def my_url_handler(url, content_type): ... text = 'the URL sent was: (%s, %s)' % (url, content_type) ... return text Start server thread on port 0. If you use port 0, the server will pick a random port number. You can then use serverthread.port to get the port number. >>> port = 0 >>> serverthread = pydoc._start_server(my_url_handler, port) Check that the server is really started. If it is, open browser and get first page. 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Z http.serverZ email.messagerS rZ r[ ZBaseHTTPRequestHandlerr\ rW r rY rX �timeZsleep)rK �hostnamerR rd Zthreadr )rO rV ra rb rS rZ r � _start_server~ s 8 ' rg � text/htmlc s G �fdd�dt �}|� � � fdd��� fdd��� fdd��� fd d ��� fd d ��� fd d��� fdd��� fdd��� �������fdd�}| �d�r�| dd� } |dkr�tj�tj�t��}tj�|| �}t|��}d�|� � �S Q R X n|dk�r|| �S t d|| f ��dS ) a The pydoc url handler for use with the pydoc server. If the content_type is 'text/css', the _pydoc.css style sheet is read and returned if it exits. 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r )ri r( r r r r� U s z4_url_handler.<locals>.html_index.<locals>.<listcomp>z<p>zBuilt-in Modulesz#ee77aaz|<p align=right><font color="#909090" face="helvetica,arial"><strong>pydoc</strong> by Ka-Ping Yee<ping@lfw.org></font>zIndex of Modulesr ) r� r r� r r� r r rb r! )rl r� �namesr� rD r )r� r r � html_indexL s z _url_handler.<locals>.html_indexc s� g � � fdd�}t �� �* t �d� dd� }t� j|| |d� W dQ R X dd � }g }��d d d �}x"� D ]\}}|�||�| � qhW |��d | d dd�|�� }d|fS )zSearch results page.c s: |dd � dkr |d d� d }� � ||o0d| f� d S )Ni����z .__init__z (package)z- )r )r r' rq )� search_resultr r r: j s z3_url_handler.<locals>.html_search.<locals>.callbackrF c S s d S )Nr )r' r r r r; q s z2_url_handler.<locals>.html_search.<locals>.onerror)r; Nc S s d| | f S )Nz<a href="%s.html">%s</a>r )r( r r r rl v s z4_url_handler.<locals>.html_search.<locals>.bltinlinkz5<big><big><strong>Search Results</strong></big></big>z#ffffffz#7799eezkey = %sz#ee77aaz<br>zSearch Results) rG rH rI r= r> r� r r� r! ) rG r: r; rl rf r� r( rq r� )r� )ro r � html_searche s z!_url_handler.<locals>.html_searchc sL dd� } � � ddd�}ttj�� �}� �|| �}|� �ddd|� }d|fS )z Index of topic texts available.c S s d| | f S )Nz <a href="topic?key=%s">%s</a>r )r( r r r rl � s z4_url_handler.<locals>.html_topics.<locals>.bltinlinkz,<big><big><strong>INDEX</strong></big></big>z#ffffffz#7799eeZTopicsz#ee77aa)r� r( r� r rD r r� )rl r� rm r� )r� r r � html_topics� s z!_url_handler.<locals>.html_topicsc sL � � ddd�} ttj�� �}dd� }� �||�}| � �ddd|� }d|fS )zIndex of keywords.z,<big><big><strong>INDEX</strong></big></big>z#ffffffz#7799eec S s d| | f S )Nz <a href="topic?key=%s">%s</a>r )r( r r r rl � s z6_url_handler.<locals>.html_keywords.<locals>.bltinlinkZKeywordsz#ee77aa)r� r( r� r rD r r� )r� rm rl r� )r� r r � html_keywords� s z#_url_handler.<locals>.html_keywordsc s� t �� }t||�}|�| �\}}| |jkr0d}nd}� �d| dd�}d� �|� }� �| dd|�}|r�t|� � �}dd � }� � ||�}� � d dd|�}d || f d � |||f�fS ) zTopic or keyword help page.ZKEYWORDZTOPICz)<big><big><strong>%s</strong></big></big>z#ffffffz#7799eez <pre>%s</pre>z#ee77aac S s d| | f S )Nz <a href="topic?key=%s">%s</a>r )r( r r r rl � s z7_url_handler.<locals>.html_topicpage.<locals>.bltinlinkzRelated help topics: z%s %sr ) r� rC r� r6 r r� r r� r( r r r� r! )r0 ZbufZhtmlhelpr� r5 r� r� rl )r� r r �html_topicpage� s& z$_url_handler.<locals>.html_topicpagec s@ t | dd�}|d kr$| dkr$td��t|�}� �|| �}||fS )Nr )r� r� zcould not find object)r� rP r� r� )r r9 r� �content)r� r r � html_getobj� s z!_url_handler.<locals>.html_getobjc sP � � ddd�}d�� fdd�tt|�|�D ��}|� �| dd|� }d| |fS ) Nz,<big><big><strong>Error</strong></big></big>z#ffffffz#7799eez<br>c 3 s | ]}� � |�V qd S )N)r� )ri r� )r� r r r` � s z3_url_handler.<locals>.html_error.<locals>.<genexpr>z#bb0000z Error - %s)r� r! r r� r� )r r� r� r� )r� r r � html_error� s z _url_handler.<locals>.html_errorc sr | }| � d�r| dd� } �y| dkr2�� \}}n�| dkrF�� \}}n�| dkrZ�� \}}n�d| k�r$| �d�\}}} |dkr��| �\}}n�|d kr�y�| �\}}W n tk r� �| �\}}Y nX n\|d k�r| dkr�� \}}n4y�| �\}}W n" tk �r �| �\}}Y nX ntd ��n �| �\}}W n2 tk �rd } z�||�\}}W dd}~X Y nX � �||�S ) z Generate an HTML page for url.z.htmlN���)r rb r r rX z search?keyz topic?keyzget?keyz bad pydoc url)r` r7 rP r= r� )r Z complete_urlr� rt �opr] r� )r� rv ru rn rr rp rs rq r r � get_html_page� s> z#_url_handler.<locals>.get_html_pager� r Nztext/cssr z text/htmlz"unknown content type %r for url %s) r� r_ r r �dirname�realpathr[ r! r� � readlinesrs )r rL rk ry Z path_hereri �fpr ) r� rv ru rn rr rj rp rs rq r � _url_handler s* ( r~ T� localhost)� open_browserrf c C s� ddl }tt|| �}|jr(t|j� dS |jr�d}|rB|�|j� z�y^td|j� t|� xD|jr�td�}|� � }|dkr~P q\|dkr�|�|j� q\t|� q\W W n t t fk r� t� Y nX W d|jr�|� � td� X dS ) z�Start the enhanced pydoc Web server and open a Web browser. Use port '0' to start the server on an arbitrary port. Set open_browser to False to suppress opening a browser. r Nz"Server commands: [b]rowser, [q]uitzServer ready atzserver> r� r� zServer stopped) � webbrowserrg r~ rY r� rX r� r r r� r� r rc )rR r� rf r� Z serverthreadZserver_help_msgr� r r r �browse s2 r� c C s t | t�o| �tj�dkS )Nr )r� r) r9 r �sep)rL r r r �ispath( s r� c C sv d| ks t j| ks t �� | kr"dS t j�t�}t j�|�}| �� }|| krbt j�||�sb|�|� |� dt �� � |S )z�Ensures current directory is on returned path, and argv0 directory is not Exception: argv0 dir is left alone if it's also pydoc's directory. Returns a new path entry list, or None if no adjustment is needed. r Nr ) r �curdir�getcwdr rz r[ �copy�samefile�remove�insert)Z given_pathZargv0Z stdlib_dirZ script_dir� revised_pathr r r �_get_revised_path+ s r� c C s, t tjtjd �} | dk r(| tjdd�< dS )z�Ensures current directory is on sys.path, and __main__ directory is not. 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If <name> contains a '{sep}', it is used as the path to a Python source file to document. If name is 'keywords', 'topics', or 'modules', a listing of these things is displayed. {cmd} -k <keyword> Search for a keyword in the synopsis lines of all available modules. {cmd} -n <hostname> Start an HTTP server with the given hostname (default: localhost). {cmd} -p <port> Start an HTTP server on the given port on the local machine. Port number 0 can be used to get an arbitrary unused port. {cmd} -b Start an HTTP server on an arbitrary unused port and open a Web browser to interactively browse documentation. This option can be used in combination with -n and/or -p. {cmd} -w <name> ... Write out the HTML documentation for a module to a file in the current directory. 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