add is_relative_to to pathlib.Path, which is only available from python 3.9 onwards

labc/util/util.py

+import inspect
 import logging
 from pathlib import Path
 import string
+import sys
 import uuid
-import inspect
+
 import appdirs
 
+
 try:
     import coloredlogs
     coloredlogs_available = True
@@ -18,6 +21,19 @@ CORE_SERVICE_PATH = Path(__file__).parent / "services"
 USER_SERVICE_PATH = Path(appdirs.user_data_dir("labc")) / "services"
 
 
+if sys.version_info < (3,9):
+    """
+    Add is_relative_to function to pathlib.Path class, which was only added in python 3.9
+    """
+    def is_relative_to(self, *other):
+        try:
+            self.relative_to(*other)
+            return True
+        except ValueError:
+            return False
+    Path.is_relative_to = is_relative_to
+    del is_relative_to
+
 def quantify_scope(scope: str):
     if scope == "network":
         return 3
@@ -153,6 +169,7 @@ def escape_path(path):
     """
     Return path relative to local path or replaces home with ~
     """
+
     path = Path(path)
     local_path = Path('.').absolute()
     if path.is_relative_to(CORE_SERVICE_PATH):