Fixed GitHub issue 96&97 bugs

Author: K-Shuffler

pymycobot/error.py

@@ -342,8 +342,9 @@ def calibration_parameters(**kwargs):
             "coords_min": [-272, -272, -36, -180, -180, -180],
             "coords_max": [272, 272, 408.9, 180, 180, 180]
         },
-        "MyArm": {
-            "id": [1, 2, 3, 4, 5, 6, 7, 8],
+        "MyArmM": {
+            "servo_id": [1, 2, 3, 4, 5, 6, 7, 8],
+            "joint_id": [1, 2, 3, 4, 5, 6, 7],
             "angles_min": [-160, -70, -170, -113, -170, -115, -180],
             "angles_max": [160, 115, 170, 75, 170, 115, 180],
             "coords_min": [-310, -310, -140, -180, -180, -180],
@@ -1284,52 +1285,40 @@ def calibration_parameters(**kwargs):
             value = kwargs[parameter]
             value_type = type(value)
             if parameter in ("servo_id", "joint_id") and value not in limit_info[parameter]:
-                raise MyArmDataException(
-                    "The id not right, should be in {0}, but received {1}.".format(limit_info[parameter], value)
-                )
+                raise ValueError(f"The {parameter} not right, should be in {limit_info[parameter]}, but received {value}.")
             elif parameter == 'angle':
                 i = kwargs['joint_id'] - 1
                 min_angle = limit_info["angles_min"][i]
                 max_angle = limit_info["angles_max"][i]
                 if value < min_angle or value > max_angle:
-                    raise MyArmDataException(
-                        f"angle value not right, should be {min_angle} ~ {max_angle}, but received {value}"
-                    )
+                    raise ValueError(f"angle value not right, should be {min_angle} ~ {max_angle}, but received {value}")
             elif parameter == 'angles':
                 for i, v in enumerate(value):
                     min_angle = limit_info["angles_min"][i]
                     max_angle = limit_info["angles_max"][i]
                     if v < min_angle or v > max_angle:
-                        raise MyArmDataException(
-                            f"angle value not right, should be {min_angle} ~ {max_angle}, but received {v}"
-                        )
+                        raise ValueError(f"angle value not right, should be {min_angle} ~ {max_angle}, but received {v}")
             elif parameter == 'encoder':
                 i = kwargs['servo_id'] - 1
                 max_encoder = limit_info["encoders_max"][i]
                 min_encoder = limit_info["encoders_min"][i]
                 if value < min_encoder or value > max_encoder:
-                    raise MyArmDataException(
-                        f"angle value not right, should be {min_encoder} ~ {max_encoder}, but received {value}"
-                    )
+                    raise ValueError(f"angle value not right, should be {min_encoder} ~ {max_encoder}, but received {value}")
             elif parameter == 'encoders':
                 for i, v in enumerate(value):
                     max_encoder = limit_info["encoders_max"][i]
                     min_encoder = limit_info["encoders_min"][i]
                     if v < min_encoder or v > max_encoder:
-                        raise MyArmDataException(
-                            f"encoder value not right, should be {min_encoder} ~ {max_encoder}, but received {v}"
-                        )
+                        raise ValueError(f"encoder value not right, should be {min_encoder} ~ {max_encoder}, but received {v}")
             elif parameter == "speed":
-                check_value_type(parameter, value_type, MyArmDataException, int)
+                check_value_type(parameter, value_type, TypeError, int)
                 if not 1 <= value <= 100:
-                    raise MyArmDataException(f"speed value not right, should be 1 ~ 100, the received speed is {value}")
+                    raise ValueError(f"speed value not right, should be 1 ~ 100, the received speed is {value}")
             elif parameter == "speeds":
                 assert len(value) == 8, "The length of `speeds` must be 8."
                 for i, s in enumerate(value):
                     if not 1 <= s <= 100:
-                        raise MyArmDataException(
-                            f"speed value not right, should be 1 ~ 100, the received speed is {value}"
-                        )
+                        raise ValueError(f"speed value not right, should be 1 ~ 100, the received speed is {value}")
             elif parameter == "servo_addr":
                 if value in (0, 1, 2, 3, 4):
-                    raise MyArmDataException("addr 0-4 cannot be modified")
+                    raise ValueError("addr 0-4 cannot be modified")

pymycobot/myarm_api.py

@@ -67,7 +67,7 @@ def _mesg(self, genre, *args, **kwargs):
             data = self._read(genre, command=command, timeout=timeout, _class=self.__class__.__name__)
             res = self._process_received(data, genre, arm=8)
 
-            if len(res) == 0:
+            if not res:
                 return None
 
             return_single_genres = [

pymycobot/myarmm.py

@@ -108,15 +108,11 @@ def get_robot_power_status(self):
         return self._mesg(ProtocolCode.IS_POWER_ON, has_reply=True)
 
     def set_robot_power_on(self):
-        """Set the robot to power on
-        Returns: (int) 1
-        """
+        """Set the robot to power on"""
         return self._mesg(ProtocolCode.POWER_ON, has_reply=True)
 
     def set_robot_power_off(self):
-        """Set the robot to power off
-        Returns: (int) 1
-        """
+        """Set the robot to power off"""
         return self._mesg(ProtocolCode.POWER_OFF, has_reply=True)
 
     def clear_robot_err(self):