fixes for python 3.8

.devcontainer/devcontainer.json

@@ -7,7 +7,7 @@
 		"context": "..",
 		"args": {
 			// Update 'VARIANT' to pick a Python version: 3, 3.6, 3.7, 3.8, 3.9
-			"VARIANT": "3.9",
+			"VARIANT": "3.8",
 			// Options
 			"INSTALL_NODE": "false",
 			"NODE_VERSION": "lts/*"

setup.cfg

@@ -34,7 +34,7 @@ package_dir =
     =src
 
 # Require a min/specific Python version (comma-separated conditions)
-python_requires = >=3.7
+python_requires = >=3.8
 
 # Add here dependencies of your project (line-separated), e.g. requests>=2.2,<3.0.
 # Version specifiers like >=2.2,<3.0 avoid problems due to API changes in

src/pysiaalarm/event.py

@@ -6,7 +6,7 @@
 from dataclasses import dataclass, field
 from dataclasses_json import dataclass_json, config, Exclude
 from datetime import datetime, timedelta, timezone
-from typing import Dict, Optional, Union
+from typing import Dict, Optional, Union, List
 
 from Crypto.Cipher import AES
 from Crypto.Cipher._mode_cbc import CbcMode
@@ -57,7 +57,6 @@ class BaseEvent(ABC):
     code: Optional[str] = None
     message: Optional[str] = None
     x_data: Optional[str] = None
-    x_data_list: Optional[list[str]] = None
     timestamp: Optional[datetime] = None
 
     # From ADM-CID
@@ -67,7 +66,7 @@ class BaseEvent(ABC):
 
     # Parsed fields
     calc_crc: Optional[str] = None
-    extended_data: Optional[list[SIAXData]] = None
+    extended_data: Optional[List[SIAXData]] = None
     sia_account: Optional[SIAAccount] = field(
         metadata=config(exclude=Exclude.ALWAYS), default=None  # type: ignore
     )
@@ -408,15 +407,16 @@ def parse_content(self) -> None:
 
     def parse_extended_data(self) -> None:
         """Set extended data."""
-        if self.x_data is not None:  # pragma: no cover
-            self.x_data_list = self.x_data.split("][")
-            self.extended_data = []
-            for xd in self.x_data_list:
-                xdata = _load_xdata().get(xd[0], None)
-                if xdata:
-                    xdata.value = xd[1:]
-                    self.extended_data.append(xdata)
-            self._xdata_parsed = True
+        if self.x_data is None:  # pragma: no cover
+            return
+        x_data_list = self.x_data.split("][")
+        self.extended_data = []
+        for xd in x_data_list:  # pragma: no cover
+            xdata = _load_xdata().get(xd[0], None)
+            if xdata:
+                xdata.value = xd[1:]
+                self.extended_data.append(xdata)
+        self._xdata_parsed = True
 
     def sia_account_from_message(self) -> Optional[SIAAccount]:  # pragma: no cover
         """Return the SIA Account, if there is not account added, create one based on the account in the message."""