diff --git a/src/pl/plpython/expected/plpython_import.out b/src/pl/plpython/expected/plpython_import.out
index b91ecc6961930b4421d2f6d39bcbbcb3c1e4f193..1d981eacf127e258631f128ecf5a435740c8edb7 100644
--- a/src/pl/plpython/expected/plpython_import.out
+++ b/src/pl/plpython/expected/plpython_import.out
@@ -3,8 +3,7 @@ CREATE FUNCTION import_fail() returns text
     AS
 'try:
 	import foosocket
-except Exception, ex:
-	plpy.notice("import socket failed -- %s" % str(ex))
+except ImportError:
 	return "failed as expected"
 return "succeeded, that wasn''t supposed to happen"'
     LANGUAGE plpythonu;
@@ -51,8 +50,6 @@ return "sha hash of " + plain + " is " + digest.hexdigest()'
 -- import python modules
 --
 SELECT import_fail();
-NOTICE:  import socket failed -- No module named foosocket
-CONTEXT:  PL/Python function "import_fail"
     import_fail     
 --------------------
  failed as expected
diff --git a/src/pl/plpython/expected/plpython_params.out b/src/pl/plpython/expected/plpython_params.out
index 3ec3396dc686518d3428fa9604467ba45c1b3f09..8dc3802513030950a64b63c6d2efd1e8a09bd59d 100644
--- a/src/pl/plpython/expected/plpython_params.out
+++ b/src/pl/plpython/expected/plpython_params.out
@@ -11,7 +11,14 @@ return True
 $$ LANGUAGE plpythonu;
 CREATE FUNCTION test_param_names2(u users) RETURNS text AS $$
 assert u == args[0]
-return str(u)
+if isinstance(u, dict):
+    # stringify dict the hard way because otherwise the order is implementation-dependent
+    u_keys = list(u.keys())
+    u_keys.sort()
+    s = '{' + ', '.join([repr(k) + ': ' + repr(u[k]) for k in u_keys]) + '}'
+else:
+    s = str(u)
+return s
 $$ LANGUAGE plpythonu;
 -- use deliberately wrong parameter names
 CREATE FUNCTION test_param_names3(a0 integer) RETURNS boolean AS $$
@@ -37,10 +44,10 @@ SELECT test_param_names1(1,'text');
 SELECT test_param_names2(users) from users;
                            test_param_names2                           
 -----------------------------------------------------------------------
- {'lname': 'doe', 'username': 'j_doe', 'userid': 1, 'fname': 'jane'}
- {'lname': 'doe', 'username': 'johnd', 'userid': 2, 'fname': 'john'}
- {'lname': 'doe', 'username': 'w_doe', 'userid': 3, 'fname': 'willem'}
- {'lname': 'smith', 'username': 'slash', 'userid': 4, 'fname': 'rick'}
+ {'fname': 'jane', 'lname': 'doe', 'userid': 1, 'username': 'j_doe'}
+ {'fname': 'john', 'lname': 'doe', 'userid': 2, 'username': 'johnd'}
+ {'fname': 'willem', 'lname': 'doe', 'userid': 3, 'username': 'w_doe'}
+ {'fname': 'rick', 'lname': 'smith', 'userid': 4, 'username': 'slash'}
 (4 rows)
 
 SELECT test_param_names2(NULL);
diff --git a/src/pl/plpython/expected/plpython_trigger.out b/src/pl/plpython/expected/plpython_trigger.out
index 58aa24b62cb6ae675258dba604ddcef6dd2c266a..4c46b2b8f21971b21500af62c92c211c3b90b4da 100644
--- a/src/pl/plpython/expected/plpython_trigger.out
+++ b/src/pl/plpython/expected/plpython_trigger.out
@@ -75,8 +75,14 @@ if 'relid' in TD:
 skeys = list(TD.keys())
 skeys.sort()
 for key in skeys:
-	val = TD[key]
-	plpy.notice("TD[" + key + "] => " + str(val))
+    val = TD[key]
+    if not isinstance(val, dict):
+        plpy.notice("TD[" + key + "] => " + str(val))
+    else:
+        # print dicts the hard way because otherwise the order is implementation-dependent
+        valkeys = list(val.keys())
+        valkeys.sort()
+        plpy.notice("TD[" + key + "] => " + '{' + ', '.join([repr(k) + ': ' + repr(val[k]) for k in valkeys]) + '}')
 
 return None
 
diff --git a/src/pl/plpython/sql/plpython_import.sql b/src/pl/plpython/sql/plpython_import.sql
index 477af328d18e5d1059945a5aa23c4faa2bde8ea8..d4a4a24af4f6f6e40d9c4c68aada3388592e5b0b 100644
--- a/src/pl/plpython/sql/plpython_import.sql
+++ b/src/pl/plpython/sql/plpython_import.sql
@@ -4,8 +4,7 @@ CREATE FUNCTION import_fail() returns text
     AS
 'try:
 	import foosocket
-except Exception, ex:
-	plpy.notice("import socket failed -- %s" % str(ex))
+except ImportError:
 	return "failed as expected"
 return "succeeded, that wasn''t supposed to happen"'
     LANGUAGE plpythonu;
diff --git a/src/pl/plpython/sql/plpython_params.sql b/src/pl/plpython/sql/plpython_params.sql
index d97e0b85490a5983a163ffc26b87e1cc3162142f..f580abe53d036ddc94a0af8b107a6f4a7b7b7161 100644
--- a/src/pl/plpython/sql/plpython_params.sql
+++ b/src/pl/plpython/sql/plpython_params.sql
@@ -14,7 +14,14 @@ $$ LANGUAGE plpythonu;
 
 CREATE FUNCTION test_param_names2(u users) RETURNS text AS $$
 assert u == args[0]
-return str(u)
+if isinstance(u, dict):
+    # stringify dict the hard way because otherwise the order is implementation-dependent
+    u_keys = list(u.keys())
+    u_keys.sort()
+    s = '{' + ', '.join([repr(k) + ': ' + repr(u[k]) for k in u_keys]) + '}'
+else:
+    s = str(u)
+return s
 $$ LANGUAGE plpythonu;
 
 -- use deliberately wrong parameter names
diff --git a/src/pl/plpython/sql/plpython_trigger.sql b/src/pl/plpython/sql/plpython_trigger.sql
index f60565cde6bdaaf72b7fb74dea92acec9807e332..2a4859f2aa232b05234c17564d945286090ea33f 100644
--- a/src/pl/plpython/sql/plpython_trigger.sql
+++ b/src/pl/plpython/sql/plpython_trigger.sql
@@ -75,8 +75,14 @@ if 'relid' in TD:
 skeys = list(TD.keys())
 skeys.sort()
 for key in skeys:
-	val = TD[key]
-	plpy.notice("TD[" + key + "] => " + str(val))
+    val = TD[key]
+    if not isinstance(val, dict):
+        plpy.notice("TD[" + key + "] => " + str(val))
+    else:
+        # print dicts the hard way because otherwise the order is implementation-dependent
+        valkeys = list(val.keys())
+        valkeys.sort()
+        plpy.notice("TD[" + key + "] => " + '{' + ', '.join([repr(k) + ': ' + repr(val[k]) for k in valkeys]) + '}')
 
 return None