Handle errors

duplicateCheck.py

@@ -14,6 +14,7 @@ def quickhash(filefullpath):
         return md5.digest()
     except OSError as er:
         print(f"Error hashing {filefullpath}")
+        return None
 
 def direcCrawler():
     global directories, files
@@ -34,6 +35,7 @@ def calchashes():
     filehashes = {}
     for file in files:
         hash = quickhash(file)
+        if hash = None: continue
         ## Inefficient to use a catch on every non-duplicate (most of the files)
         try:  filehashes[hash].append(file)
         except: filehashes[hash] = [file]