move read_config to helper; ConfigError to errors

this refactors settings.py to make it more modular:
errors.py will contain all exception classes,
read_config is moved to helper to reuse in elsewhere

1 files changed, 4 insertions, 0 deletions

diff --git a/alot/errors.py b/alot/errors.py
new file mode 100644
index 00000000..5409d315
--- /dev/null
+++ b/alot/errors.py
@@ -0,0 +1,4 @@
+
+
+class ConfigError(Exception):
+    pass