r1.4.4

Author: man-mt

CHANGELOG.md

@@ -1,6 +1,13 @@
 Release Notes
 #############
 
+1.4.4
+=====
+
+:Release Date: 2026-01-29
+
+* Fixed error when detecting legacy readers using the ‘detect_reader’ method
+
 1.4.3
 =====
 
@@ -193,4 +200,4 @@ Supports following Metratec rfid readers:
 
   * PulsarMX
 
-  * PulsarLR
+  * PulsarLR

README.md

@@ -46,7 +46,7 @@ cd rfid-sdk-python
 Preferably check out a release version (see [Github tags](https://github.com/metratec/rfid-sdk-python/tags)), for example: 
 
 ```
-git checkout r1.4.3
+git checkout r1.4.4
 ```
 
 Install the *metratec_rfid* library: 
@@ -58,7 +58,7 @@ python -m pip install .
 Alternatively, install a specific version from Github directly:
 
 ```
-python -m pip install git+https://github.com/metratec/rfid-sdk-python@r1.4.3
+python -m pip install git+https://github.com/metratec/rfid-sdk-python@r1.4.4
 ```
 
 ## Usage

builds/metratec_rfid-r1.4.3.zip builds/metratec_rfid-r1.4.4.zipbuilds/metratec_rfid-r1.4.3.zip renamed to builds/metratec_rfid-r1.4.4.zip

@@ -3,6 +3,13 @@
 Release Notes
 #############
 
+1.4.4
+=====
+
+:Release Date: 2026-01-29
+
+* Fixed error when detecting legacy readers using the ‘detect_reader’ method
+
 1.4.3
 =====
 

docs/source/changelog.rst

@@ -8,7 +8,7 @@
 # from .connection.serial_connection import SerialConnection
 # from .connection.socket_connection import SocketConnection
 
-__version__ = "1.4.3"
+__version__ = "1.4.4"
 __email__ = "neumann@metratec.com"
 __license__ = "MIT License"
 __author__ = "Matthias Neumann"

metratec_rfid/__init__.py

@@ -539,7 +539,10 @@ async def _config_device(self) -> None:
             self.get_logger().warning(msg)
             self._update_status(self.ERROR, msg)
             # try reconfigure after 5 seconds
-            await asyncio.sleep(5)
+            try:
+                await asyncio.sleep(5)
+            except asyncio.CancelledError:
+                return
             self._task_config = asyncio.ensure_future(self._config_device())
 
     def _send_not_connected(self, data: str) -> None:

metratec_rfid/reader.py

@@ -420,6 +420,22 @@ def _data_received_config(self, data: str, timestamp: float) -> None:
             return
         self._add_data_to_receive_buffer(data)
 
+    # @override
+    # default implementation...
+    def _data_received(self, data: str, timestamp: float):
+        # disable 'Too many return statements' warning - pylint: disable=R0911
+        self.get_logger().debug("data received %s", data.replace(
+            "\r", "<CR>").replace("\n", "<LF>"))
+        data = data[:-1]
+        if data[0] == 'H' and data[2] == 'T':  # HBT
+            return
+        if len(data) >= 10 and data[-6:-3] == 'IVF':
+            self._parse_inventory(data)
+            if self._custom_command:
+                self._add_data_to_receive_buffer(data)
+            return
+        self._add_data_to_receive_buffer(data)
+
     async def _prepare_reader_communication(self) -> None:
         """Override for prepare the reader for the communication"""
         # disable Too many branches warning - pylint: disable=R0912
@@ -486,8 +502,8 @@ async def _send_recv_command(self, command: str, *parameters) -> str:
             try:
                 return await self._recv()
             except TimeoutError as err:
-                raise TimeoutError("no reader response for command " + command + " " +
-                                   " ".join(str(x) for x in parameters)) from err
+                raise RfidReaderException("no reader response for command " + command + " " +
+                                          " ".join(str(x) for x in parameters)) from err
         finally:
             self._communication_lock.release()
 

metratec_rfid/reader_ascii.py

@@ -85,11 +85,12 @@ async def detect_readers(port_re="USB", verbose=False, legacy=False):
             try:
                 await reader.connect(timeout=3.0)
                 info = await reader.get_reader_info()
-                await reader.disconnect()
                 break
             except RfidReaderException as e:
                 # connection failed or unexpected reader info
                 print(e) if verbose else lambda: None
+            finally:
+                await reader.disconnect()
 
         # create reader object from firmware name
         if info is None:

metratec_rfid/utils.py

@@ -16,7 +16,7 @@
 # This call to setup() does all the work
 setup(
     name="metratec_rfid",
-    version="1.4.3",
+    version="1.4.4",
     description="Metratec RFID SDK",
     long_description=long_description,
     long_description_content_type="text/markdown",