Source code for textract.parsers.eml_parser

from email.parser import Parser


def extract(filename, **kwargs):
    """Extract text from email messages in .eml format. This gets the
    subject and all text from the contents.
    """
    # TODO: could make option here to omit all non-original content
    # (forwarded content, quoted content in reply, signature, etc),
    # perhaps using https://github.com/zapier/email-reply-parser

    # TODO: could also potentially grab text/html content instead of
    # only grabbing text/plain content

    with open(filename) as stream:
        parser = Parser()
        message = parser.parse(stream)

    text_content = []
    for part in message.walk():
        if part.get_content_type().startswith('text/plain'):
            text_content.append(part.get_payload())
    return '\n\n'.join(text_content)