Use a type hint syntax compatible with python 3.7

1 files changed, 4 insertions, 1 deletions

diff --git a/hazwaz/unittest.py b/hazwaz/unittest.py
index 2b28cdc..96689d5 100644
--- a/hazwaz/unittest.py
+++ b/hazwaz/unittest.py
@@ -1,11 +1,14 @@
 import contextlib
 import io
 import sys
+import typing
 import unittest
 
 
 class HazwazTestCase(unittest.TestCase):
-    def run_with_argv(self, cmd, argv: list[str]) -> dict[str, io.StringIO]:
+    def run_with_argv(
+            self, cmd, argv: typing.List[str]
+    ) -> typing.Dict[str, io.StringIO]:
         """
         Run a command with a list of command line options.