Escaping for f-strings fixed

.flake8

@@ -14,6 +14,7 @@ exclude =
     dist,
     .conda
     .venv
+    venv
 
 # Enable specific plugins or options
 # Example: Enabling flake8-docstrings

src/pyhoff/__init__.py

@@ -45,8 +45,8 @@ class BusTerminal():
     @classmethod
     def select(cls, bus_coupler: 'BusCoupler', terminal_number: int = 0) -> 'BusTerminal':
         terminal_list = [bt for bt in bus_coupler.bus_terminals if isinstance(bt, cls)]
-        assert terminal_list, f'No instance of {cls.__name__} configured at this BusCoupler'
+        assert terminal_list, f"No instance of {cls.__name__} configured at this BusCoupler"
-        assert 0 <= terminal_number < len(terminal_list), f'Out of range, select in range: 0..{len(terminal_list) - 1}'
+        assert 0 <= terminal_number < len(terminal_list), f"Out of range, select in range: 0..{len(terminal_list) - 1}"
         return terminal_list[terminal_number]
 
 
@@ -283,7 +283,7 @@ class BusCoupler():
                 terminal_classes.append(element)
 
         for terminal_class in terminal_classes:
-            assert _is_bus_terminal(terminal_class), f'{terminal_class} is not a bus terminal'
+            assert _is_bus_terminal(terminal_class), f"{terminal_class} is not a bus terminal"
 
             def get_para(key: str) -> int:
                 return terminal_class.parameters.get(key, 0)

src/pyhoff/modbus.py

@@ -451,7 +451,7 @@ class SimpleModbusClient:
                 return bytes()
 
         if self.debug:
-            print(f'<- Received: {' '.join(hex(b) for b in buffer)}')
+            print(f"<- Received: {' '.join(hex(b) for b in buffer)}")
 
         return buffer
 
@@ -471,7 +471,7 @@ class SimpleModbusClient:
                 try:
                     self._socket.sendall(data)
                     if self.debug:
-                        print(f'-> Send:     {' '.join(hex(b) for b in data)}')
+                        print(f"-> Send:     {' '.join(hex(b) for b in data)}")
                     return len(data)
                 except socket.error:
                     self.last_error = 'sending data failed'
@@ -532,7 +532,7 @@ class SimpleModbusClient:
             return self.close()
 
         if data[0] > 0x80:
-            self.last_error = f'return error: {_modbus_exceptions.get(data[1], '')} ({data[1]})'
+            self.last_error = f"return error: {_modbus_exceptions.get(data[1], '')} ({data[1]})"
             if self.debug:
                 print(self.last_error)
             return bytes()

tests/test_beckh_trace.py

@@ -14,7 +14,7 @@ def test_against_old_traces():
 
     # dummy modbus send function
     def debug_send_dummy(data: bytes) -> int:
-        print(f'-> Send:     {' '.join(hex(b) for b in data)}')
+        print(f"-> Send:     {' '.join(hex(b) for b in data)}")
         for b in data:
             debug_data.append(f"{b:02X}")
         return len(data)