Slight improvements

Server/copter_table_models.py

@@ -212,7 +212,7 @@ class ModelFormatter:
 
 @ModelFormatter.col_format(0, ModelFormatter.PLACE_FORMATTER)
 def place_id(value):
-    value = value.stip()
+    value = value.strip()
     # check user hostname spelling http://man7.org/linux/man-pages/man7/hostname.7.html
     # '-' (hyphen) not first; latin letters/numbers/hyphens; length form 1 to 63
     # or matches command pattern
@@ -277,6 +277,7 @@ def place_time_delta(value):
 def view_time_delta(value):
     return "{:.3f}".format(value)  
 
+
 class CopterDataModel(QtCore.QAbstractTableModel):
     selected_ready_signal = QtCore.pyqtSignal(bool)
     selected_takeoff_ready_signal = QtCore.pyqtSignal(bool)
@@ -460,6 +461,7 @@ class CopterDataModel(QtCore.QAbstractTableModel):
         if row is not None:
             self.removeRows(row)
 
+
 def flip_checks(copter_item):
     for col in ModelChecks.takeoff_checklist:
         if col != 4 or col != 7:
@@ -498,7 +500,6 @@ class CopterProxyModel(QtCore.QSortFilterProxyModel):
 
         return self.human_sort_prepare(leftData) < self.human_sort_prepare(rightData)
 
-
 class SignalManager(QtCore.QObject):
     update_data_signal = QtCore.pyqtSignal(int, int, QtCore.QVariant, QtCore.QVariant)
     add_client_signal = QtCore.pyqtSignal(object)

Server/server_qt.py

@@ -74,6 +74,7 @@ class ServerQt(Server):
         table.ModelChecks.time_delta_max = self.config.checks_time_delta_max
 
 
+# noinspection PyCallByClass,PyArgumentList
 class MainWindow(QtWidgets.QMainWindow):
     def __init__(self, server):
         super(MainWindow, self).__init__()
@@ -460,17 +461,19 @@ class MainWindow(QtWidgets.QMainWindow):
     def send_any_command(self):
         text, okPressed = QInputDialog.getText(self, "Enter command to send on copter",
                                                "Command:", QLineEdit.Normal, "")
-        if okPressed and text != '':
+        if okPressed and text:
             self.send_to_selected("execute", {"command": text})
 
     @pyqtSlot()
     def select_music_file(self):
         path = QFileDialog.getOpenFileName(self, "Select music file", filter="Music files (*.mp3 *.wav)")[0]
-        if path:
-            media = QUrl.fromLocalFile(path)
-            content = QtMultimedia.QMediaContent(media)
-            self.player.setMedia(content)
-            self.ui.action_select_music_file.setText(self.ui.action_select_music_file.text() + " (selected)")
+        if not path:
+            return
+
+        media = QUrl.fromLocalFile(path)
+        content = QtMultimedia.QMediaContent(media)
+        self.player.setMedia(content)
+        self.ui.action_select_music_file.setText(self.ui.action_select_music_file.text() + " (selected)")
 
     @pyqtSlot()
     def play_music(self):