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-rw-r--r--tests/testutils.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/tests/testutils.py b/tests/testutils.py
index 88ca135..2b5bbf9 100644
--- a/tests/testutils.py
+++ b/tests/testutils.py
@@ -38,7 +38,7 @@ from ctypes.util import find_library
import psycopg2
import psycopg2.errors
import psycopg2.extensions
-from psycopg2.compat import PY2, PY3, text_type
+from psycopg2.compat import PY2, PY3, string_types, text_type
from .testconfig import green, dsn, repl_dsn
@@ -454,7 +454,7 @@ def skip_if_crdb(reason, conn=None, version=None):
"== 20.1.3": the test will be skipped only if the version matches.
"""
- if not isinstance(reason, str):
+ if not isinstance(reason, string_types):
raise TypeError("reason should be a string, got %r instead" % reason)
if conn is not None: