Update validate_mod_json.py

Author: GeorgeK1ng

.github/validate_mod_json.py

@@ -3,6 +3,7 @@
 import os
 import sys
 import urllib.request
+from io import StringIO
 
 from ignore_json import ignore
 
@@ -11,8 +12,10 @@
 for filename in glob.glob(os.path.join('.', '*.json')):
     if filename not in ignore:
         print(f"Opening: {filename}")
-        filecontent = open(filename, "r").read()
-        
+
+        with open(filename, "r") as file:
+            filecontent = file.read()
+
         try:
             modlist = jstyleson.loads(filecontent)
         except Exception as err:
@@ -23,6 +26,7 @@
         for mod, data in modlist.items():
             url = data["mod"].replace(" ", "%20")
             print(f"{mod}: {url}")
+
             try:
                 response = urllib.request.urlopen(url)
                 print(f"✅ Download successful")
@@ -31,16 +35,16 @@
                 print(f"❌ Download failed: {err}")
                 continue
 
-            filecontent = response.read()
-
             try:
-                jstyleson.loads(filecontent)
+                 filecontent = response.read().decode("utf-8")
+                jstyleson.load(StringIO(filecontent))
                 print(f"✅ JSON valid")
             except Exception as err:
                 error = True
                 print(f"❌ JSON invalid:")
                 print(str(err))
                 continue
+
 if error:
     sys.exit(os.EX_SOFTWARE)
 else: