diff --git a/aulavirtuale-dl.py b/aulavirtuale-dl.py
index aabf60a..ae1d5d4 100644
--- a/aulavirtuale-dl.py
+++ b/aulavirtuale-dl.py
@@ -2,19 +2,18 @@ import os
 from bs4 import BeautifulSoup
 import urllib
 
-
-#Base link to the lessons page
+# Base link to the lessons page
 edunovaLink = "https://davy04.edunova.it/presentation/"
-#Relative path to the slides video
+# Relative path to the slides video
 videoSuffix = "/deskshare/deskshare.webm"
-#Relative path to the presentation audio
+# Relative path to the presentation audio
 audioSuffix = "/video/webcams.mp4"
-#slides = "https://davy04.edunova.it/presentation/17d59e4eb742c498e605406fd441c1a2d7eb4bf0-1601024050226/shapes.svg"
+# slides = "https://davy04.edunova.it/presentation/17d59e4eb742c498e605406fd441c1a2d7eb4bf0-1601024050226/shapes.svg"
 
 os.makedirs("VideoLezioni", exist_ok=True)
 os.chdir("VideoLezioni")
 
-#Dictionary containing the id of the saved lessons
+# Dictionary containing the id of the saved lessons
 meetingsID = {
     '021020': '17d59e4eb742c498e605406fd441c1a2d7eb4bf0-1601628738707',
     '290920': '17d59e4eb742c498e605406fd441c1a2d7eb4bf0-1601380547311',
@@ -23,14 +22,12 @@ meetingsID = {
     '091020': '17d59e4eb742c498e605406fd441c1a2d7eb4bf0-1602232967548',
 }
 
-
-
 for (date, meetId) in meetingsID.items():
-    if(os.path.exists(f"Gestione{date}joinedWithSlide.mp4")):
+    if os.path.exists(f"Gestione{date}joinedWithSlide.mp4"):
         print("Il video e' gia' stato scaricato")
         continue
 
-    #Assemblo il comando ffmpeg con i riferimenti web a video e audio della presentazione con id {meetId}
+    # Assemblo il comando ffmpeg con i riferimenti web a video e audio della presentazione con id {meetId}
     downloadAndJoin = f"ffmpeg -i {edunovaLink}{meetId}{videoSuffix} -i {edunovaLink}{meetId}{audioSuffix} -map 0:v -map 1:a -c:v copy -shortest Gestione{date}joined.mp4"
     os.system(downloadAndJoin)
     svgSlide = urllib.request.urlopen(f"{edunovaLink}{meetId}/shapes.svg").read()
@@ -38,16 +35,16 @@ for (date, meetId) in meetingsID.items():
     soup = BeautifulSoup(svgSlide, 'html.parser')
     usefulImg = []
     for img in soup.find_all('image'):
-        
+
         start = img.get('in')
         end = img.get('out')
         imgLink = img.get('xlink:href')
-        if(not imgLink.endswith("deskshare.png")):
+        if not imgLink.endswith("deskshare.png"):
             usefulImg.append([float(start), float(end), imgLink])
 
     imgSorted = sorted(usefulImg)
     print(imgSorted)
-    if(len(imgSorted)==0):
+    if len(imgSorted) == 0:
         os.rename(f"Gestione{date}joined.mp4", f"Gestione{date}joinedWithSlide.mp4")
         continue
 
@@ -59,25 +56,25 @@ for (date, meetId) in meetingsID.items():
         imgLinkList += f"-i \"{slideBase}{l[2]}\" "
 
     for i in range(len(imgSorted)):
-        imgScaleList += f"[{i+1}:v] scale=1280:720 [ol{i}]; "
+        imgScaleList += f"[{i + 1}:v] scale=1280:720 [ol{i}]; "
 
     imgOverlayList = f"[0:v] [ol0] overlay=0:0:enable='between(t,{int(imgSorted[0][0])},{int(imgSorted[0][1])})' [olo0]; "
 
-    for i in range(1, len(imgSorted)-1):
-        imgOverlayList += f"[olo{i-1}] [ol{i}] overlay=0:0:enable='between(t,{int(imgSorted[i][0])},{int(imgSorted[i][1])})' [olo{i}]; "
+    for i in range(1, len(imgSorted) - 1):
+        imgOverlayList += f"[olo{i - 1}] [ol{i}] overlay=0:0:enable='between(t,{int(imgSorted[i][0])},{int(imgSorted[i][1])})' [olo{i}]; "
 
-    imgOverlayList += f"[olo{len(imgSorted)-1-1}] [ol{len(imgSorted)-1}] overlay=0:0:enable='between(t,{int(imgSorted[len(imgSorted)-1][0])},{int(imgSorted[len(imgSorted)-1][1])})'"
-    
-    #Informazioni di debug sulle immagini e sui momenti nei quali inserirle nel video
+    imgOverlayList += f"[olo{len(imgSorted) - 1 - 1}] [ol{len(imgSorted) - 1}] overlay=0:0:enable='between(t,{int(imgSorted[len(imgSorted) - 1][0])},{int(imgSorted[len(imgSorted) - 1][1])})'"
+
+    # Informazioni di debug sulle immagini e sui momenti nei quali inserirle nel video
     print(imgLinkList)
     print(imgScaleList)
     print(imgOverlayList)
 
-    #Comando di esempio di utilizzo di ffmpeg per incollare diverse immagini in diversi momenti su un video
-    #ffmpeg -i Untitled.mp4 -i slide-1.png -i slide-2.png -filter_complex "[1:v] scale=640:480 [ol]; [2:v] scale=640:480 [ol2]; [0:v] [ol] overlay=0:0:enable='between(t,0,20)' [ol1]; [ol1] [ol2] overlay=0:0:enable='between(t, 30,40)'" -codec:a copy example_marked.mp4
+    # Comando di esempio di utilizzo di ffmpeg per incollare diverse immagini in diversi momenti su un video
+    # ffmpeg -i Untitled.mp4 -i slide-1.png -i slide-2.png -filter_complex "[1:v] scale=640:480 [ol]; [2:v] scale=640:480 [ol2]; [0:v] [ol] overlay=0:0:enable='between(t,0,20)' [ol1]; [ol1] [ol2] overlay=0:0:enable='between(t, 30,40)'" -codec:a copy example_marked.mp4
 
     ffmpegCommand = f'ffmpeg -i Gestione{date}joined.mp4 {imgLinkList} -filter_complex "{imgScaleList}{imgOverlayList}" -codec:a copy Gestione{date}joinedWithSlide.mp4'
 
     os.system(ffmpegCommand)
-    #Rimuovo il file intermedio senza slide
+    # Rimuovo il file intermedio senza slide
     os.remove(f"Gestione{date}joined.mp4")