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Make tornado.database importable when MySQLdb is not available. 

This fixes the docs build on readthedocs.org.

Closes #485.
This commit is contained in:
Ben Darnell 2012-04-01 14:41:47 -07:00
parent 2ff579a65c
commit 38908bf6b7
1 changed files with 22 additions and 16 deletions
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14
tornado/database.py
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@ -19,13 +19,19 @@
from __future__ import absolute_import, division, with_statement from __future__ import absolute_import, division, with_statement
import copy import copy
import MySQLdb.constants
import MySQLdb.converters
import MySQLdb.cursors
import itertools import itertools
import logging import logging
import time import time
try:
import MySQLdb.constants
import MySQLdb.converters
import MySQLdb.cursors
except ImportError:
# If MySQLdb isn't available this module won't actually be useable,
# but we want it to at least be importable (mainly for readthedocs.org,
# which has limitations on third-party modules)
MySQLdb = None
class Connection(object): class Connection(object):
"""A lightweight wrapper around MySQLdb DB-API connections. """A lightweight wrapper around MySQLdb DB-API connections.
@ -213,7 +219,7 @@ class Row(dict):
except KeyError: except KeyError:
raise AttributeError(name) raise AttributeError(name)
if MySQLdb is not None:
# Fix the access conversions to properly recognize unicode/binary # Fix the access conversions to properly recognize unicode/binary
FIELD_TYPE = MySQLdb.constants.FIELD_TYPE FIELD_TYPE = MySQLdb.constants.FIELD_TYPE
FLAG = MySQLdb.constants.FLAG FLAG = MySQLdb.constants.FLAG