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ZY nX e ZdS )a� Utilities to get a password and/or the current user name.
getpass(prompt[, stream]) - Prompt for a password, with echo turned off.
getuser() - Get the user name from the environment or password database.
GetPassWarning - This UserWarning is issued when getpass() cannot prevent
echoing of the password contents while reading.
On Windows, the msvcrt module will be used.
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�r� |dk �rz� ||k �r�|� � t| |�}Y nX |� d� |W 5 Q R � S Q R X dS )a Prompt for a password, with echo turned off.
Args:
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Returns:
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�liner r r r' � s& r' c C s< dD ] } t j�| �}|r| S qddl}|�t �� �d S )z�Get the username from the environment or password database.
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