U ��.ei!�@s�ddlmZddlZddlZddlZddlmZddd�Zdd �Z d ddd�Z e �d d�edd�D��dd�Z dd�ZeZGdd�de�ZdS)�)�absolute_importN�)�six�application/octet-streamcCs|rt�|�dp|S|S)z� Guess the "Content-Type" of a file. :param filename: The filename to guess the "Content-Type" of using :mod:`mimetypes`. :param default: If no "Content-Type" can be guessed, default to `default`. r)� mimetypesZ guess_type)�filename�default�r �>/usr/lib/python3.8/site-packages/pip/_vendor/urllib3/fields.py�guess_content_type s rc s�t�tj�r��d��t�fdd�dD��sdd|�f}z|�d�Wnttfk r^YnX|Stjrt��d��t j ��d��d|�f�tjr��d��S)a� Helper function to format and quote a single header parameter using the strategy defined in RFC 2231. Particularly useful for header parameters which might contain non-ASCII values, like file names. 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