Release 1.4.1

* Avoid loading timezone at runtime

Pytz will load timezone info from files in
a lazy fashion on first access. This triggers warnings in HA due to it blocking the event loop.

Pre-load the needed timezone info at module import instead, which will run in
executor in HA.

* Update value_types.py

CHANGELOG.rst

@@ -1,30 +1,31 @@
 Change Log
 ----------
 
-**1.4.0** (2024-03-12)
-- Q3D add CURRENT_ELECTRICITY_DELIVERY
- (`PR #149 <https://github.com/ndokter/dsmr_parser/pull/149>`_ by `Aeroid <https://github.com/Aeroid>`_)
-- Copy head_parsers list on construct.
- (`PR #150 <https://github.com/ndokter/dsmr_parser/pull/150>`_ by `dupondje <https://github.com/dupondje>`_)
+**1.4.1** (2024-03-12)
 
+- Avoid loading timezone at runtime (`PR #157 <https://github.com/ndokter/dsmr_parser/pull/157>`_ by `dupondje <https://github.com/elupus>`_)
+
+**1.4.0** (2024-03-12)
+
+- Mbus alt (`PR #142 <https://github.com/ndokter/dsmr_parser/pull/142>`_ by `dupondje <https://github.com/dupondje>`_)
+- Q3D add CURRENT_ELECTRICITY_DELIVERY (`PR #149 <https://github.com/ndokter/dsmr_parser/pull/149>`_ by `Aeroid <https://github.com/Aeroid>`_)
+- Copy head_parsers list on construct. (`PR #150 <https://github.com/ndokter/dsmr_parser/pull/150>`_ by `dupondje <https://github.com/dupondje>`_)
 
 **1.3.2** (2024-01-29)
-- Fix unit test for pyton 3.12
- (`PR #148 <https://github.com/ndokter/dsmr_parser/pull/148>`_ by `ndokter <https://github.com/ndokter>`_)
+
+- Fix unit test for pyton 3.12 (`PR #148 <https://github.com/ndokter/dsmr_parser/pull/148>`_ by `ndokter <https://github.com/ndokter>`_)
 
 **1.3.1** (2023-11-06)
-- Fix parsing peak usage with invalid timestamps
- (`PR #143 <https://github.com/ndokter/dsmr_parser/pull/143>`_ by `dupondje <https://github.com/dupondje>`_)
+
+- Fix parsing peak usage with invalid timestamps (`PR #143 <https://github.com/ndokter/dsmr_parser/pull/143>`_ by `dupondje <https://github.com/dupondje>`_)
 
 **1.3.0** (2023-08-01)
 
-- added E.ON Hungary; refactored DSMR specifications to fix obis reference conflicts
- (`PR #137 <https://github.com/ndokter/dsmr_parser/pull/137>`_ by `balazs92117 <https://github.com/balazs92117>`_)
+- added E.ON Hungary; refactored DSMR specifications to fix obis reference conflicts (`PR #137 <https://github.com/ndokter/dsmr_parser/pull/137>`_ by `balazs92117 <https://github.com/balazs92117>`_)
 
 **1.2.4** (2023-07-11)
 
-- EQUIPMENT IDENTIFIER is wrong for Fluvius meters when other mbus devices are present
- (`PR #133 <https://github.com/ndokter/dsmr_parser/pull/133>`_ by `ejpalacios <https://github.com/ejpalacios>`_)
+- EQUIPMENT IDENTIFIER is wrong for Fluvius meters when other mbus devices are present (`PR #133 <https://github.com/ndokter/dsmr_parser/pull/133>`_ by `ejpalacios <https://github.com/ejpalacios>`_)
 
 
 **1.2.3** (2023-04-18)

dsmr_parser/clients/filereader.py

@@ -73,7 +73,7 @@ class FileReader(object):
                     try:
                         yield self.telegram_parser.parse(telegram)
                     except InvalidChecksumError as e:
-                        logger.warning(str(e))
+                        logger.info(str(e))
                     except ParseError as e:
                         logger.error('Failed to parse telegram: %s', e)
 

dsmr_parser/clients/protocol.py

@@ -158,7 +158,7 @@ class DSMRProtocol(asyncio.Protocol):
         try:
             parsed_telegram = self.telegram_parser.parse(telegram)
         except InvalidChecksumError as e:
-            self.log.warning(str(e))
+            self.log.info(str(e))
         except ParseError:
             self.log.exception("failed to parse telegram")
         else:

dsmr_parser/clients/serial_.py

@@ -37,7 +37,7 @@ class SerialReader(object):
                     try:
                         yield self.telegram_parser.parse(telegram)
                     except InvalidChecksumError as e:
-                        logger.warning(str(e))
+                        logger.info(str(e))
                     except ParseError as e:
                         logger.error('Failed to parse telegram: %s', e)
 

dsmr_parser/clients/socket_.py

@@ -54,7 +54,7 @@ class SocketReader(object):
                     try:
                         yield self.telegram_parser.parse(telegram)
                     except InvalidChecksumError as e:
-                        logger.warning(str(e))
+                        logger.info(str(e))
                     except ParseError as e:
                         logger.error('Failed to parse telegram: %s', e)
 

dsmr_parser/value_types.py

@@ -2,6 +2,10 @@ import datetime
 
 import pytz
 
+# TODO : Use system timezone
+# Preload timezone to avoid loading in event loop later
+local_tz = pytz.timezone('Europe/Amsterdam')
+
 
 def timestamp(value):
     try:
@@ -20,8 +24,6 @@ def timestamp(value):
     else:
         is_dst = False
 
-    # TODO : Use system timezone
-    local_tz = pytz.timezone('Europe/Amsterdam')
     localized_datetime = local_tz.localize(naive_datetime, is_dst=is_dst)
 
     return localized_datetime.astimezone(pytz.utc)

setup.py

@@ -7,7 +7,7 @@ setup(
     author_email='mail@nldr.net',
     license='MIT',
     url='https://github.com/ndokter/dsmr_parser',
-    version='1.4.0',
+    version='1.4.1',
     packages=find_packages(exclude=('test', 'test.*')),
     install_requires=[
         'pyserial>=3,<4',