(self, outfp, mangle_from_=None, maxheaderlen=None, *,
                 policy=None)
Create the generator for message flattening.

        outfp is the output file-like object for writing the message to.  It
        must have a write() method.

        Optional mangle_from_ is a flag that, when True (the default if policy
        is not set), escapes From_ lines in the body of the message by putting
        a `>' in front of them.

        Optional maxheaderlen specifies the longest length for a non-continued
        header.  When a header line is longer (in characters, with tabs
        expanded to 8 spaces) than maxheaderlen, the header will split as
        defined in the Header class.  Set maxheaderlen to zero to disable
        header wrapping.  The default is 78, as recommended (but not required)
        by RFC 2822.

        The policy keyword specifies a policy object that controls a number of
        aspects of the generator's operation.  If no policy is specified,
        the policy associated with the Message object passed to the
        flatten method is used.
Create the generator for message flattening.
Create the generator for message flattening .
def __init__(self, outfp, mangle_from_=None, maxheaderlen=None, *,
                 policy=None):
        """Create the generator for message flattening.

        outfp is the output file-like object for writing the message to.  It
        must have a write() method.

        Optional mangle_from_ is a flag that, when True (the default if policy
        is not set), escapes From_ lines in the body of the message by putting
        a `>' in front of them.

        Optional maxheaderlen specifies the longest length for a non-continued
        header.  When a header line is longer (in characters, with tabs
        expanded to 8 spaces) than maxheaderlen, the header will split as
        defined in the Header class.  Set maxheaderlen to zero to disable
        header wrapping.  The default is 78, as recommended (but not required)
        by RFC 2822.

        The policy keyword specifies a policy object that controls a number of
        aspects of the generator's operation.  If no policy is specified,
        the policy associated with the Message object passed to the
        flatten method is used.

        """

        if mangle_from_ is None:
            mangle_from_ = True if policy is None else policy.mangle_from_
        self._fp = outfp
        self._mangle_from_ = mangle_from_
        self.maxheaderlen = maxheaderlen
        self.policy = policy
def __init__ ( self , outfp , mangle_from_ = None , maxheaderlen = None , * , policy = None ) : if mangle_from_ is None : mangle_from_ = True if policy is None else policy . mangle_from_ self . _fp = outfp self . _mangle_from_ = mangle_from_ self . maxheaderlen = maxheaderlen self . policy = policy