1 files changed, 3 insertions, 3 deletions
diff --git a/Tools/scripts/pysource.py b/Tools/scripts/pysource.py
index c7dbe605d4..7348a68f21 100755
--- a/Tools/scripts/pysource.py
+++ b/Tools/scripts/pysource.py
@@ -22,7 +22,7 @@ __all__ = ["has_python_ext", "looks_like_python", "can_be_compiled", "walk_pytho
 
 import os, re
 
-binary_re = re.compile('[\x00-\x08\x0E-\x1F\x7F]')
+binary_re = re.compile(br'[\x00-\x08\x0E-\x1F\x7F]')
 
 debug = False
 
@@ -42,7 +42,7 @@ def _open(fullpath):
         return None
 
     try:
-        return open(fullpath)
+        return open(fullpath, "rb")
     except IOError as err: # Access denied, or a special file - ignore it
         print_debug("%s: access denied: %s" % (fullpath, err))
         return None
@@ -65,7 +65,7 @@ def looks_like_python(fullpath):
 
     if fullpath.endswith(".py") or fullpath.endswith(".pyw"):
         return True
-    elif "python" in line:
+    elif b"python" in line:
         # disguised Python script (e.g. CGI)
         return True