Initial commit

hav_sat/util.py

@@ -0,0 +1,16 @@
+"""Utility methods."""
+
+from collections.abc import Callable
+import uuid
+from typing import Optional
+
+
+def get_mac() -> str:
+    mac = uuid.getnode()
+    mac_str = ":".join(f"{(mac >> i) & 0xff:02x}" for i in range(40, -1, -8))
+    return mac_str
+
+
+def call_all(*callables: Optional[Callable[[], None]]) -> None:
+    for item in filter(None, callables):
+        item()