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comparison roundup/backends/__init__.py @ 3718:0d561b24ceff

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support sqlite3
author Richard Jones <richard@users.sourceforge.net>
date Wed, 04 Oct 2006 01:12:00 +0000
parents bcebddf1351f
children 6a96ad643629
comparison
equal deleted inserted replaced
3717:5770f1802cd0 3718:0d561b24ceff
13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
14 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS" 14 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE, 15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
17 # 17 #
18 # $Id: __init__.py,v 1.36 2006-01-25 03:24:09 richard Exp $ 18 # $Id: __init__.py,v 1.37 2006-10-04 01:12:00 richard Exp $
19 19
20 '''Container for the hyperdb storage backend implementations. 20 '''Container for the hyperdb storage backend implementations.
21 ''' 21 '''
22 __docformat__ = 'restructuredtext' 22 __docformat__ = 'restructuredtext'
23 23
26 # These names are used to suppress import errors. 26 # These names are used to suppress import errors.
27 # If get_backend raises an ImportError with appropriate 27 # If get_backend raises an ImportError with appropriate
28 # module name, have_backend quietly returns False. 28 # module name, have_backend quietly returns False.
29 # Otherwise the error is reraised. 29 # Otherwise the error is reraised.
30 _modules = { 30 _modules = {
31 'mysql': 'MySQLdb', 31 'mysql': ('MySQLdb',),
32 'postgresql': 'psycopg', 32 'postgresql': ('psycopg',),
33 'tsearch2': 'psycopg', 33 'tsearch2': ('psycopg',),
34 'sqlite': ('pysqlite', 'pysqlite2'),
34 } 35 }
35 36
36 def get_backend(name): 37 def get_backend(name):
37 '''Get a specific backend by name.''' 38 '''Get a specific backend by name.'''
38 vars = globals() 39 vars = globals()
63 return 0 64 return 0
64 try: 65 try:
65 get_backend(name) 66 get_backend(name)
66 return 1 67 return 1
67 except ImportError, e: 68 except ImportError, e:
68 global _modules 69 for name in _modules.get(name, (name,)):
69 if not str(e).startswith('No module named %s' 70 if str(e).startswith('No module named %s'%name):
70 % _modules.get(name, name)): 71 return 0
71 raise 72 raise
72 return 0 73 return 0
73 74
74 def list_backends(): 75 def list_backends():
75 '''List all available backend names. 76 '''List all available backend names.
76 77
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