UF2 installation port finding fix

CHANGELOG.rst

@@ -5,6 +5,7 @@ Version history
 4.0.2 (2022-12-??)
 ==================
 * Ignore flushing errors in the end of UF2 installation
+* Make port finding in the end of UF2 installation process more robust
 
 4.0.1 (2022-09-11)
 ==================

thonny/plugins/micropython/mp_front.py

@@ -987,6 +987,10 @@ def list_serial_ports():
         os.path.islink = old_islink
 
 
+def list_serial_port_infos():
+    return [f"{p.device} ({p.hwid})" for p in list_serial_ports()]
+
+
 def port_exists(device):
     for port in list_serial_ports():
         if port.device == device:

thonny/plugins/micropython/uf2dialog.py

@@ -13,6 +13,7 @@
 from thonny import get_runner
 from thonny.languages import tr
 from thonny.misc_utils import get_win_volume_name, list_volumes
+from thonny.plugins.micropython.mp_front import list_serial_port_infos
 from thonny.ui_utils import AdvancedLabel, MappingCombobox, set_text_if_different
 from thonny.workdlg import WorkDialog
 
@@ -465,7 +466,8 @@ def _perform_work(
         from thonny.plugins.micropython import list_serial_ports
 
         try:
-            ports_before = list_serial_ports()
+            ports_before = list_serial_port_infos()
+            logger.debug("Ports before: %s", ports_before)
             self._download_to_the_device(download_url, size, target_dir, target_filename)
             if self._state == "working":
                 self.perform_post_installation_steps(ports_before)
@@ -552,18 +554,19 @@ def _wait_for_new_ports(self, old_ports):
         wait_time = 0
         step = 0.2
         while wait_time < 10:
-            new_ports = list_serial_ports()
+            new_ports = list_serial_port_infos()
             added_ports = set(new_ports) - set(old_ports)
             if added_ports:
                 for p in added_ports:
-                    self.append_text("Found %s at %s\n" % ("%04x:%04x" % (p.vid, p.pid), p.device))
+                    self.append_text("Found port %s\n" % p)
                     self.set_action_text("Found port")
                 return
             if self._state == "cancelling":
                 return
             time.sleep(step)
             wait_time += step
         else:
+            logger.debug("Ports after: %s", list_serial_port_infos())
             self.set_action_text("Warning: Could not find port")
             self.append_text("Warning: Could not find port in %s seconds\n" % int(wait_time))
             # leave some time to see the warning