(tweak) Update README, fix misc_utils.py

Author: dfgHiatus

BabbleApp/utils/misc_utils.py

@@ -6,12 +6,16 @@
 import platform
 import cv2
 import subprocess
-from pygrabber.dshow_graph import FilterGraph
-
-is_nt = True if sys.platform.startswith('win') else False
-graph = FilterGraph()
 
+# Detect the operating system
+is_nt = os.name == "nt"
+os_type = platform.system()
 
+if is_nt:
+    from pygrabber.dshow_graph import FilterGraph
+    graph = FilterGraph()
+    
+    
 def list_camera_names():
     cam_list = graph.get_input_devices()
     cam_names = []
@@ -20,14 +24,6 @@ def list_camera_names():
     cam_names = cam_names + list_serial_ports()
     return cam_names
 
-# Detect the operating system
-is_nt = True if os.name == "nt" else False
-os_type = platform.system()
-
-if is_nt:
-    from pygrabber.dshow_graph import FilterGraph
-    graph = FilterGraph()
-
 
 def list_cameras_opencv():
     """ Use OpenCV to check available cameras by index (fallback for Linux/macOS) """

README.md

@@ -1,4 +1,3 @@
-
 ![Babble Logo](https://github.com/SummerSigh/ProjectBabble/blob/SummerSigh-patch-4/Babble.png?raw=true)
 
 <h3 align="center">
@@ -32,8 +31,15 @@ Once it's finished installing, you can update and run the Babble app by typing `
 
 *You should also be able to run the Windows executable through Wine!*
 
-#### Note:
-If you recieve a `ModuleNotFoundError: No module named 'tkinter'` error message on run, you'll need to install `tkinter` for your distro.
+#### Notes:
+If you receive a `["Error listing UVC devices on Linux ... No such file or directory"]` when choosing/changing your camera, you'll need to install video4linux (`v4l-utils`) for your distro.
+
+For Ubuntu or other distros with apt:
+```bash
+sudo apt-get install v4l-utils
+```
+
+If you receive a `ModuleNotFoundError: No module named 'tkinter'` error message on run, you'll need to install `tkinter` for your distro.
 
 For Ubuntu or other distros with apt:
 ```bash