Temporary workaround for postgrespro/pg_probackup#447

Author: AndrewBille

patches/pg_probackup_py2_compat.patch

@@ -0,0 +1,17 @@
+diff --git a/tests/restore.py b/tests/restore.py
+index 47419e5a..b3d4aef7 100644
+--- a/tests/restore.py
++++ b/tests/restore.py
+@@ -4,7 +4,11 @@ from .helpers.ptrack_helpers import ProbackupTest, ProbackupException
+ import subprocess
+ import sys
+ from time import sleep
+-from datetime import datetime, timedelta, timezone
++from datetime import datetime, timedelta
++try:
++    from datetime import timezone
++except ImportError:  # py2compat
++    from pytz import timezone
+ import hashlib
+ import shutil
+ import json

tests_install/requirements2.txt

@@ -9,3 +9,4 @@ pytest-json==0.4.0
 enum34==1.1.6
 testgres==1.8.2
 pathlib
+pytz

tests_install/test_pgprobackup.py

@@ -194,6 +194,13 @@ def test_pgprobackup_internal(self, request):
                               os.path.join(dir, 'tests', 'helpers',
                                            'ptrack_helpers.py'),
                               shell=True)
+        # https://github.com/postgrespro/pg_probackup/pull/447
+        if sys.version_info < (3, 0):
+            self.pginst.os.install_package('patch')
+            subprocess.check_call(
+                "patch -p1 -i ../patches/pg_probackup_py2_compat.patch",
+                shell=True, cwd=dir
+            )
         self.fix_permissions(dir)
         # PGPRO-4108 wait ptrack2.0 in 10
         cmd = "%s sh -c 'PG_CONFIG=\"%s/pg_config\"" \