summaryrefslogtreecommitdiffstats
path: root/Lib/email/__init__.py
blob: 8d230fdeb7d0300d7e331b2c58eb54910fd28837 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
# 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__ = '4.0.1'

__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)