Consolidate all of the import voodoo for MySQLdb into a new module.

svn path=/buildtools/make-python-executable.py; revision=3946

1 files changed, 61 insertions, 0 deletions

diff --git a/rpkid/rpki/mysql_import.py b/rpkid/rpki/mysql_import.py
new file mode 100644
index 00000000..ac2b580d
--- /dev/null
+++ b/rpkid/rpki/mysql_import.py
@@ -0,0 +1,61 @@
+"""
+Import wrapper for MySQLdb.
+
+MySQLdb is an independent package, not part of Python, and has some
+minor version skew issues with respect to Python itself, which we want
+to suppress so that they don't annoy the user.  None of this is
+particularly hard, but the maze of whacky incantations required to do
+this in multiple version of Python on multiple platforms is somewhat
+tedious, and turns out to cause other problems when combined with the
+way we construct executable Python scripts containing a standard
+header indicating the location of our config file.
+
+So it turns out to be easier just to put all of the import voodoo
+here, and have other modules that need MySQLdb import the MySQL module
+object from this module.  Looks kind of strange, but seems to work.
+
+$Id$
+
+Copyright (C) 2011  Internet Systems Consortium ("ISC")
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+Portions copyright (C) 2007--2008  American Registry for Internet Numbers ("ARIN")
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND ARIN DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS.  IN NO EVENT SHALL ARIN BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+"""
+
+from __future__ import with_statement
+
+import warnings
+
+if hasattr(warnings, "catch_warnings"):
+  with warnings.catch_warnings():
+    warnings.simplefilter("ignore", DeprecationWarning)
+    import MySQLdb
+else:
+  import MySQLdb
+
+import _mysql_exceptions
+
+warnings.simplefilter("error", _mysql_exceptions.Warning)