Replacing literal value with a more accurate one (Codacy), and removing unused imports

Author: jonoomph

src/timeline/js/controllers.js

@@ -270,7 +270,7 @@ App.controller("TimelineCtrl", function ($scope) {
     }
 
     // Compare to previous scale (and ignore tiny differences)
-    if (Math.abs(parseFloat(scaleVal) - $scope.project.scale) < 0.00001) {
+    if (Math.abs(parseFloat(scaleVal) - $scope.project.scale) < 1.0e-5) {
       // Do not change scale if the value is this tiny
       // This can cause the Ruler $watch to fail, and will leave the Ruler blank
       return;

src/windows/main_window.py

@@ -29,7 +29,6 @@
 
 import os
 import shutil
-import sys
 import webbrowser
 from copy import deepcopy
 from time import sleep
@@ -46,12 +45,11 @@
     QMessageBox, QDialog, QFileDialog, QInputDialog,
     QAction, QActionGroup, QSizePolicy,
     QStatusBar, QToolBar, QToolButton,
-    QLineEdit, QSlider, QLabel, QComboBox, QTextEdit
+    QLineEdit, QComboBox, QTextEdit
 )
 
 from classes import exceptions, info, settings, qt_types, ui_util, updates
 from classes.app import get_app
-from classes.conversion import zoomToSeconds, secondsToZoom
 from classes.exporters.edl import export_edl
 from classes.exporters.final_cut_pro import export_xml
 from classes.importers.edl import import_edl

src/windows/views/zoom_slider.py

@@ -31,7 +31,7 @@
 from PyQt5.QtGui import (
     QPainter, QPixmap, QColor, QPen, QBrush, QCursor, QPainterPath
 )
-from PyQt5.QtWidgets import QSizePolicy, QWidget, QPushButton
+from PyQt5.QtWidgets import QSizePolicy, QWidget
 
 import openshot  # Python module for libopenshot (required video editing module installed separately)