Support passing extra connect args to psycopg2 driver.

The patch was written to support sslmode parameter. Also switch to kwargs way
of passing connect parameters (as of psycopg2 v2.7) as this is way more rubust
so passwords with e.g. space character are supported as well.

Finally, clone dburi arguments in database drivers rather than extend them
directly. This made test_connections test fail once postgres was switched to
kwargs.

1 files changed, 1 insertions, 1 deletions

diff --git a/setup.py b/setup.py
index 2e9c66e..1acaa32 100755
--- a/setup.py
+++ b/setup.py
@@ -53,7 +53,7 @@ setup(
     install_requires=install_requires,
     extras_require={
         'mysql': ['PyMySQL'],
-        'postgres': ['psycopg2'],
+        'postgres': ['psycopg2>=2.7'],
         'pyodbc': ['pyodbc']
     },
     tests_require=['mock'],