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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 rr � s �z Helper.intror� �P c C s� t t|��}|| }t|�| d | }t|�D ]v}t|�D ]\}|| | }|t|�k r<| j�|| � ||d k r<| j�dd|d t|| � � q<| j�d� q0d S )Nr r� r )r r� r r r r� ) r> �items�columnsr Zcolwr �rowr rr r r r r � s &z Helper.listc C s | j �d� | �| j�� � d S )NzN Here is a list of the Python keywords. 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Or, type "modules spam" to search for modules whose name or summary contain the string "spam". )r r� r �apropos� ModuleScanner�runr rE )r> rH r� r� r r� r r� & s � zHelper.listmodules)r9 r= r% r� )NN)r� r� )r )r )r )!r% r& rW rz Z _strprefixesZ_symbols_inverser{ r� r� Zsymbols_r� rv r| r� rl rm r rp r rq ru rs rw r rr r r~ r r� r� r� r� r� r r r r r � sB �'� � �W r c @ s e Zd ZdZddd�ZdS )r� z7An interruptible scanner that searches module synopses.Nc C s |r |� � }d| _i }tjD ]p}|dkr d||< |d krF|d |d� q t|�jpRd}|�d�d }|d | }|� � �|�dkr |d ||� q tj |d�D �]\\} }} | jr� �q�|d kr�|d |d� q�zt� | |�} W n t k r� Y q�Y nX | j } t | d ��rnz| �|�} W n( tk �r: |�r2||� Y q�Y nX tt�| ���pNd}t | d ��rh| �|�}nd }n`ztj�| �}W n( tk �r� |�r�||� Y q�Y nX |j�r�|j�� d nd}t|d d �}|d | }|� � �|�dkr�||||� q�|�r|� d S ) NF�__main__r r r r r� r� � get_source� get_filenamerS )r� rv r r� r� rX r r� rN r � _get_specr� r� rc r� rc r� r� �StringIOr� r� r� r� r� r� r< )r> r� rH Z completerr� �seenr' r( r� rX rY r� r� �sourcer r� r r r r� G s` zModuleScanner.run)NNN)r% r& rW rX r� r r r r r� D s r� c C sD dd� }dd� }t �� �" t �d� t� j|| |d� W 5 Q 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 �Nr� r� r� z- )r �r r' r� r r r r� � s zapropos.<locals>.callbackc S s d S r� r r� r r r r� � s zapropos.<locals>.onerror�ignorer� N)�warnings�catch_warnings�filterwarningsr� r� )rH r� r� r r r r� � s r� c s� ddl �ddl�ddl�ddl�G dd� d�jj�� G �fdd�d�jj��G � ����fdd�d�j�}|| ||�}|�� |j s�|j s�t � d � q~|S ) aA Start an HTTP server thread on a specific port. 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