def encode_multipart_formdata(fields, boundary=None):
 body = BytesIO()
 if (boundary is None):
  boundary = choose_boundary()
 for (fieldname, value) in iter_fields(fields):
  body.write(b(('--%s\r\n' % boundary)))
  if isinstance(value, tuple):
   (filename, data) = value
   writer(body).write(('Content-Disposition: form-data; name="%s"; filename="%s"\r\n' % (fieldname, filename)))
   body.write(b(('Content-Type: %s\r\n\r\n' % get_content_type(filename))))
  else:
   data = value
   writer(body).write(('Content-Disposition: form-data; name="%s"\r\n' % fieldname))
   body.write('Content-Type: text/plain\r\n\r\n')
  if isinstance(data, int):
   data = str(data)
  if isinstance(data, six.text_type):
   writer(body).write(data)
  else:
   body.write(data)
  body.write('\r\n')
 body.write(b(('--%s--\r\n' % boundary)))
 content_type = b(('multipart/form-data; boundary=%s' % boundary))
 return (body.getvalue(), content_type)

def encode_multipart_formdata ( fields , boundary = None ) : body = BytesIO ( ) if ( boundary is None ) : boundary = choose_boundary ( ) for ( fieldname , value ) in iter_fields ( fields ) : body . write ( b ( ( '--%s\r\n' % boundary ) ) ) if isinstance ( value , tuple ) : ( filename , data ) = value writer ( body ) . write ( ( 'Content-Disposition: form-data; name="%s"; filename="%s"\r\n' % ( fieldname , filename ) ) ) body . write ( b ( ( 'Content-Type: %s\r\n\r\n' % get_content_type ( filename ) ) ) ) else : data = value writer ( body ) . write ( ( 'Content-Disposition: form-data; name="%s"\r\n' % fieldname ) ) body . write ( 'Content-Type: text/plain\r\n\r\n' ) if isinstance ( data , int ) : data = str ( data ) if isinstance ( data , six . text_type ) : writer ( body ) . write ( data ) else : body . write ( data ) body . write ( '\r\n' ) body . write ( b ( ( '--%s--\r\n' % boundary ) ) ) content_type = b ( ( 'multipart/form-data; boundary=%s' % boundary ) ) return ( body . getvalue ( ) , content_type )
encode a dictionary of fields using the multipart/form-data mime format .