Handle errors

duplicateCheck.py

@@ -5,12 +5,16 @@ directories = os.listdir('.') ## Get the files in the current directory
 files = []
 
 def quickhash(filefullpath):
-    with open(filefullpath, "rb" ) as f:
-        md5 = hashlib.md5()
-        block_size=1024*100
-        data = f.read(block_size)
-        md5.update(data)
-    return md5.digest()
+    try:
+        with open(filefullpath, "rb" ) as f:
+            md5 = hashlib.md5()
+            block_size=1024*100
+            data = f.read(block_size)
+            md5.update(data)
+        return md5.digest()
+    except OSError as er:
+        print(f"Error hashing {filefullpath}")
+        return None
 
 def direcCrawler():
     global directories, files
@@ -31,6 +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]