From 637b2d27bbb5224fe2dc574a7beb302164c96b5a Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Wed, 1 Sep 2021 03:15:20 -0400
Subject: [PATCH] fix working with newer requests-cache versions

Just inline the simple internal symbols that were being imported
from requests-cache (since it no longer exports them).

Fixes #94.
---
 setup.py    | 2 +-
 tvdb_api.py | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/setup.py b/setup.py
index 4d792d7..606b258 100644
--- a/setup.py
+++ b/setup.py
@@ -23,7 +23,7 @@
     long_description_content_type='text/markdown',
 
     py_modules=['tvdb_api'],
-    install_requires=['requests_cache<0.6.0', 'requests'],
+    install_requires=['requests_cache', 'requests'],
 
     classifiers=[
         "Intended Audience :: Developers",
diff --git a/tvdb_api.py b/tvdb_api.py
index 860fd4f..5d16e32 100644
--- a/tvdb_api.py
+++ b/tvdb_api.py
@@ -31,7 +31,11 @@
 
 import requests
 import requests_cache
-from requests_cache.backends.base import _to_bytes, _DEFAULT_HEADERS
+
+_DEFAULT_HEADERS = requests.utils.default_headers()
+
+def _to_bytes(s, encoding='utf-8'):
+    return s if isinstance(s, bytes) else bytes(s, encoding)
 
 
 IS_PY2 = sys.version_info[0] == 2