From 3d48451dd773c2d3dd715f2d04f925a978e2096e Mon Sep 17 00:00:00 2001
From: David Ames <david.ames@canonical.com>
Date: Fri, 19 Apr 2019 08:32:52 -0700
Subject: [PATCH] Remove old .pyc files

Avoid Byte code errors: bad magic number in 'ceph': b'\x03\xf3\r\n'

Change-Id: I156803991b2b3783ef633837a3945f50a86ef0dc
Closes-Bug: #1825392
---
 hooks/upgrade-charm | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/hooks/upgrade-charm b/hooks/upgrade-charm
index 14948004..71a85b0a 100755
--- a/hooks/upgrade-charm
+++ b/hooks/upgrade-charm
@@ -1,4 +1,9 @@
 #!/bin/bash -e
-# Re-install dependencies to deal with py2->py3 switch for charm
 
+# Wrapper to ensure that old python bytecode isn't hanging around
+# after we upgrade the charm with newer libraries
+find . -iname '*.pyc' -delete
+find . -name '__pycache__' -prune -exec rm -rf "{}" \;
+
+# Re-install dependencies to deal with py2->py3 switch for charm
 ./hooks/install_deps