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
|
# __init__.py - general scheme interface
#
# Copyright (C) 2005 Arthur de Jong
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
"""This package groups all the supported schemes.
A scheme module can be requested by the get_schememodule() function.
Each module should export the following function:
fetch(link, acceptedtypes)
Fetch the link. Some basic information about the document is provided
if possible (size, mimetype, mtime, status in case of errors, etc).
Also the contents of the link is fetched and returned if
the content type is mentioned in the acceptedtypes list."""
# a map of schemes to modules
_schememodules={}
def get_schememodule(scheme):
"""Look up the correct module for the specified scheme."""
if not _schememodules.has_key(scheme):
try:
_schememodules[scheme]=__import__('schemes.'+scheme,globals(),locals(),[scheme])
except ImportError:
_schememodules[scheme]=None
return _schememodules[scheme]
|