bpo-37364: Use io.open_code() to read .pth files (GH-14299)



https://bugs.python.org/issue37364
diff --git a/Lib/site.py b/Lib/site.py
index ad11463..e7aafb7 100644
--- a/Lib/site.py
+++ b/Lib/site.py
@@ -73,6 +73,7 @@
 import os
 import builtins
 import _sitebuiltins
+import io
 
 # Prefixes for site-packages; add additional prefixes like /usr/local here
 PREFIXES = [sys.prefix, sys.exec_prefix]
@@ -156,7 +157,7 @@
         reset = False
     fullname = os.path.join(sitedir, name)
     try:
-        f = open(fullname, "r")
+        f = io.TextIOWrapper(io.open_code(fullname))
     except OSError:
         return
     with f: