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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__> s zHelper.__call__c C s� | j jd� x�y| jd�}|s P W n ttfk r< P Y nX |j� }t|�dkr�|d |d kold kn r�|d |dd � kr�|dd� }|j� dkr�P |d kr�| j� q| j |� qW d S )Nr zhelp> r r r r� r r� �quitr r� )r� r r� r� )r� r� ) r� r� �getliner� �EOFErrorr r r� r� r )r> r� r r r r� K s" , zHelper.interactc C s8 | j tjkrt |�S | jj|� | jj� | j j� S d S )N)r� r r� r� r� r� r� )r> �promptr r r r� ` s zHelper.getlinec C s< t |�t d�k�r|j� }|dkr,| j� n�|dkr>| j� n�|dkrP| j� n�|dkrb| j� n�|d d� dkr�| j|j� d � n�|| jkr�| j|� nj|dkr�t t |�d � nR|| j kr�| j |� n<|| j kr�| j |� n&|r�t |d | jd � nt td | jd � n$t|t��r | � nt |d | jd � | jjd� d S )Nr �keywords�symbols�topicsr� � zmodules r r� r� r� z Help on %s:)r� r )r� r� r� )r� r � listkeywords� listsymbols� listtopics� listmodulesr r� � showsymbolr" �evalr� � showtopicr� r� r6 r� r� r� r� )r> r� r r r r i s6 z Helper.helpc C s$ | j jdjdtjd 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@| jj|| � ||d k r@| jjdd|d t|| � � q@W | jjd� q2W d S )Nr r� r )r �sortedr r r� r� ) r> �items�columnsr Zcolwr �rowr rl r r r r � s (z Helper.listc C s | j jd� | j| jj� � 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 jd� | j| jj� � 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 jd� | j| jj� � 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, | jjd� d S X | jj|| jj|��}|s`| jjdt|� � d S t|�td�kr|| j ||�S |\}}y|jj| }W n( t k r� | jjdt|� � d S X |j � d }|r�|p�dd | }|�r dd l }ddj |j� � d } |j| d �} |d dj | � 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� ro r� r� r� r� �KeyErrorr �textwrapr! r Zwrapr� ) r> �topic� more_xrefs� pydoc_data�target�label�xrefsr" r� r. Z wrapped_textr r r r� � s6 zHelper.showtopicc C s� y dd l }W n tk r dS X | jj|| jj|��}|sDtd��t|t�rZ| j||�S |\}}|jj| }|r�|pxdd | }||fS )Nr �t 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� r� ro r� rd r� r6 � _gettopic)r> r� r� r� r� r� r� r" r r r r� � s zHelper._gettopicc C s* | j | }|jd�\}}}| j||� d S )Nr� )r� � partitionr� )r> �symbolr� r� r_ r� r r r r� � s zHelper.showsymbolc sv |r | j jdj|�� t|� nR| j jd� i }|fdd�� � fdd�}t� j� |d� | j|j� � | j jd� d S ) Nzy Here is a list of modules whose name or summary contains '{}'. 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