1 files changed, 9 insertions, 0 deletions
diff --git a/src/installer/exceptions.py b/src/installer/exceptions.py
new file mode 100644
index 0000000..01f044a
--- /dev/null
+++ b/src/installer/exceptions.py
@@ -0,0 +1,9 @@
+"""Errors raised from this package."""
+
+
+class InstallerError(Exception):
+    """All exceptions raised from this package's code."""
+
+
+class InvalidWheelSource(InstallerError):
+    """When a wheel source violates a contract, or is not supported."""