From 04fd8dd6e6c89e134013fcd8c68f36e989e63a03 Mon Sep 17 00:00:00 2001
From: Alec Delaney <89490472+tekktrik@users.noreply.github.com>
Date: Thu, 19 May 2022 17:13:15 -0400
Subject: [PATCH] Fix compatibility for Python 3.7

---
 adafruit_rfm9x.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/adafruit_rfm9x.py b/adafruit_rfm9x.py
index cc9561a..276e4e8 100644
--- a/adafruit_rfm9x.py
+++ b/adafruit_rfm9x.py
@@ -28,11 +28,16 @@
     pass
 
 try:
-    from typing import Optional, Type, Literal
+    from typing import Optional, Type
     from digitalio import DigitalInOut
     from busio import SPI
     from circuitpython_typing import WriteableBuffer, ReadableBuffer
 
+    try:
+        from typing import Literal
+    except ImportError:
+        from typing_extensions import Literal
+
 except ImportError:
     pass