cpython/Lib/email/__init__.py

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# Copyright (C) 2001-2006 Python Software Foundation
# Author: Barry Warsaw
# Contact: email-sig@python.org
"""A package for parsing, handling, and generating email messages."""
__version__ = '4.0.3'
__all__ = [
# Old names
'base64MIME',
'Charset',
'Encoders',
'Errors',
'Generator',
'Header',
'Iterators',
'Message',
'MIMEAudio',
'MIMEBase',
'MIMEImage',
'MIMEMessage',
'MIMEMultipart',
'MIMENonMultipart',
'MIMEText',
'Parser',
'quopriMIME',
'Utils',
'message_from_string',
'message_from_file',
# new names
'base64mime',
'charset',
'encoders',
'errors',
'generator',
'header',
'iterators',
'message',
'mime',
'parser',
'quoprimime',
'utils',
]
# Some convenience routines. Don't import Parser and Message as side-effects
# of importing email since those cascadingly import most of the rest of the
# email package.
def message_from_string(s, *args, **kws):
"""Parse a string into a Message object model.
Optional _class and strict are passed to the Parser constructor.
"""
from email.parser import Parser
return Parser(*args, **kws).parsestr(s)
def message_from_file(fp, *args, **kws):
"""Read a file and parse its contents into a Message object model.
Optional _class and strict are passed to the Parser constructor.
"""
from email.parser import Parser
return Parser(*args, **kws).parse(fp)
# Lazy loading to provide name mapping from new-style names (PEP 8 compatible
# email 4.0 module names), to old-style names (email 3.0 module names).
import sys
class LazyImporter(object):
def __init__(self, module_name):
self.__name__ = 'email.' + module_name
def __getattr__(self, name):
__import__(self.__name__)
mod = sys.modules[self.__name__]
self.__dict__.update(mod.__dict__)
return getattr(mod, name)
_LOWERNAMES = [
# email.<old name> -> email.<new name is lowercased old name>
'Charset',
'Encoders',
'Errors',
'FeedParser',
'Generator',
'Header',
'Iterators',
'Message',
'Parser',
'Utils',
'base64MIME',
'quopriMIME',
]
_MIMENAMES = [
# email.MIME<old name> -> email.mime.<new name is lowercased old name>
'Audio',
'Base',
'Image',
'Message',
'Multipart',
'NonMultipart',
'Text',
]
for _name in _LOWERNAMES:
importer = LazyImporter(_name.lower())
sys.modules['email.' + _name] = importer
setattr(sys.modules['email'], _name, importer)
import email.mime
for _name in _MIMENAMES:
importer = LazyImporter('mime.' + _name.lower())
sys.modules['email.MIME' + _name] = importer
setattr(sys.modules['email'], 'MIME' + _name, importer)
setattr(sys.modules['email.mime'], _name, importer)