From 8ee9b84660c4945018823c4fbce2cd236c7cd135 Mon Sep 17 00:00:00 2001
From: Dan Halbert <halbert@halwitz.org>
Date: Tue, 19 Nov 2019 14:16:39 -0500
Subject: [PATCH] Complain if trying to use with CPy 5.x

---
 adafruit_ble/__init__.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/adafruit_ble/__init__.py b/adafruit_ble/__init__.py
index 2cde100..7e12860 100755
--- a/adafruit_ble/__init__.py
+++ b/adafruit_ble/__init__.py
@@ -43,6 +43,12 @@
   https://github.com/adafruit/circuitpython/releases
 
 """
+#pylint: disable=wrong-import-position
+import sys
+if sys.implementation.name == 'circuitpython' and sys.implementation.version[0] <= 4:
+    raise ImportError(
+        "This release is not compatible with CircuitPython 4.x; use library release 1.x.x")
+#pylint: enable=wrong-import-position
 
 import board
 import _bleio