--- gutenprint-5.2.12/src/cups/cups-genppdupdate.in.python36syntax	
+++ gutenprint-5.2.12/src/cups/cups-genppdupdate.in	
@@ -287,7 +287,7 @@ def update_ppd (ppd_source_filename):
     for line in orig.readlines ():
         line.rstrip ()
         if line.find ("*StpLocale:") != -1:
-            match = re.search ("\*StpLocale:\s*\"(.*)\"$", line)
+            match = re.search (r'\*StpLocale:\s*"(.*)"$', line)
             if match:
                 groups = match.groups ()
                 if len (groups) >= 1:
@@ -295,26 +295,26 @@ def update_ppd (ppd_source_filename):
                     orig_locale = locale
                     valid = 1
         elif line.startswith ("*LanguageVersion"):
-            match = re.search ("^\*LanguageVersion:\s*(.*)$", line)
+            match = re.search (r'^\*LanguageVersion:\s*(.*)$', line)
             if match:
                 groups = match.groups ()
                 if len (groups) >= 1:
                     lingo = groups[0]
         elif line.startswith ("*StpDriverName:"):
-            match = re.search ("^\*StpDriverName:\s*\"(.*)\"$", line)
+            match = re.search (r'^\*StpDriverName:\s*"(.*)"$', line)
             if match:
                 groups = match.groups ()
                 if len (groups) >= 1:
                     driver = groups[0]
                     valid = 1
         elif line.find ("*%End of ") != -1 and driver == "":
-            match = re.search ("^\*%End of\s*(.*).ppd$", line)
+            match = re.search (r'^\*%End of\s*(.*).ppd$', line)
             if match:
                 groups = match.groups ()
                 if len (groups) >= 1:
                     driver = groups[0]
         elif line.startswith ("*StpPPDLocation:"):
-            match = re.search ("^\*StpPPDLocation:\s*\"(.*)\"$", line)
+            match = re.search (r'^\*StpPPDLocation:\s*"(.*)"$', line)
             if match:
                 groups = match.groups ()
                 if len (groups) >= 1:
@@ -436,7 +436,7 @@ def update_ppd (ppd_source_filename):
         lines = source_data.rstrip ().split ("\n")
         source_data = ""
         for line in lines:
-            m = re.search ("(\*StpLocale:\s*\")(.*)(\")", line)
+            m = re.search (r'(\*StpLocale:\s*")(.*)(")', line)
             if m:
                 groups = m.groups ()
                 line = groups[0] + orig_locale + groups[2]
@@ -689,7 +689,7 @@ def get_ppd_data (fh, types, opts, resolutions, defaults, data):
             line = line.strip ()
 
             if (types or opts) and line.startswith ("*OpenUI"):
-                m = re.search ("^\*OpenUI\s\*(\w+).*:\s(\w+)",
+                m = re.search (r'^\*OpenUI\s\*(\w+).*:\s(\w+)',
                                line)
                 if m:
                     groups = m.groups ()
@@ -704,7 +704,7 @@ def get_ppd_data (fh, types, opts, resolutions, defaults, data):
 
                 optionlist = []
             elif opts and line.startswith ("*%s" % cur_opt):
-                m = re.search ("^\*%s\s*(\w+)[\/:]" % cur_opt, line)
+                m = re.search (r'^\*%s\s*(\w+)[\/:]' % cur_opt, line)
                 if m:
                     groups = m.groups()
                     if len (groups) >= 1:
@@ -717,7 +717,7 @@ def get_ppd_data (fh, types, opts, resolutions, defaults, data):
                     old = s[2]
                     resolution_map[old] = new
             elif defaults and line.startswith ("*Default"):
-                m = re.search ("^\*(\w+):\s*(\w+)", line)
+                m = re.search (r'^\*(\w+):\s*(\w+)', line)
                 if m:
                     groups = m.groups ()
                     key = groups[0]
@@ -844,13 +844,13 @@ def find_ppd (gutenprintfilename, drivername, lang, region):
     global debug
 
     key = '^\\*FileVersion:[ 	]*' + file_version
-    match = re.search (".*/([^/]+\.[0-9]+\.[0-9]+)(\.sim)?(\.ppd)?(\.gz)?$",
+    match = re.search (r'.*/([^/]+\.[0-9]+\.[0-9]+)(\.sim)?(\.ppd)?(\.gz)?$',
                        gutenprintfilename)
     if not match:
         return None
 
     stored_name = match.groups ()[0]
-    if re.search (".*/([^/]*)(\.sim)(\.ppd)?(\.gz)?$", gutenprintfilename):
+    if re.search (r'.*/([^/]*)(\.sim)(\.ppd)?(\.gz)?$', gutenprintfilename):
         simplified = ".sim"
     else:
         simplified = ""