diff --git a/src/Mod/CAM/Path/Post/scripts/KineticNCBeamicon2_post.py b/src/Mod/CAM/Path/Post/scripts/KineticNCBeamicon2_post.py
index a9f0e083dc..3008d6e032 100644
--- a/src/Mod/CAM/Path/Post/scripts/KineticNCBeamicon2_post.py
+++ b/src/Mod/CAM/Path/Post/scripts/KineticNCBeamicon2_post.py
@@ -56,7 +56,10 @@ KineticNCBeamicon2_post.export(object,"/path/to/file.ncc","")
 
 now = datetime.datetime.now()
 
-parser = argparse.ArgumentParser(prog="linuxcnc", add_help=False)
+parser = argparse.ArgumentParser(
+    prog="linuxcnc",
+    add_help=False,
+)
 parser.add_argument("--no-header", action="store_true", help="suppress header output")
 parser.add_argument("--no-comments", action="store_true", help="suppress comment output")
 parser.add_argument("--line-numbers", action="store_true", help="prefix with line numbers")
@@ -68,11 +71,11 @@ parser.add_argument(
 parser.add_argument("--precision", default="3", help="number of digits of precision, default=3")
 parser.add_argument(
     "--preamble",
-    help='set commands to be issued before the first command, default="%\\nG17 G21 G40 G49 G80 G90\\nM08\\n"',
+    help=r'set commands to be issued before the first command, default="%%\nG17 G21 G40 G49 G80 G90\nM08\n"',
 )
 parser.add_argument(
     "--postamble",
-    help='set commands to be issued after the last command, default="M05 M09\\nG17 G90 G80 G40\\nM30\\n"',
+    help=r'set commands to be issued after the last command, default="M05 M09\nG17 G90 G80 G40\nM30\n"',
 )
 parser.add_argument(
     "--inches", action="store_true", help="Convert output for US imperial mode (G20)"
diff --git a/src/Mod/CAM/Path/Post/scripts/snapmaker_post.py b/src/Mod/CAM/Path/Post/scripts/snapmaker_post.py
index 7606c18276..1b13581edc 100644
--- a/src/Mod/CAM/Path/Post/scripts/snapmaker_post.py
+++ b/src/Mod/CAM/Path/Post/scripts/snapmaker_post.py
@@ -65,7 +65,7 @@ class CoordinatesAction(argparse.Action):
 
     def __call__(self, parser, namespace, values, option_string=None):
         match = re.match(
-            "^\s*(?P<X>-?\d+\.?\d*),?\s*(?P<Y>-?\d+\.?\d*),?\s*(?P<Z>-?\d+\.?\d*)\s*$", values
+            r"^\s*(?P<X>-?\d+\.?\d*),?\s*(?P<Y>-?\d+\.?\d*),?\s*(?P<Z>-?\d+\.?\d*)\s*$", values
         )
         if match:
             # setattr(namespace, self.dest, 'G0 X{0} Y{1} Z{2}'.format(*match.groups()))
@@ -79,7 +79,7 @@ class ExtremaAction(argparse.Action):
     """argparse Action to handle integer extrema (min,max)"""
 
     def __call__(self, parser, namespace, values, option_string=None):
-        if match := re.match("^ *(\d+),? *(\d+) *$", values):
+        if match := re.match(r"^ *(\d+),? *(\d+) *$", values):
             # setattr(namespace, self.dest, 'G0 X{0} Y{1} Z{2}'.format(*match.groups()))
             params = {
                 key: int(value)
@@ -507,7 +507,7 @@ class Snapmaker(Path.Post.Processor.PostProcessor):
         for index, commandline in enumerate(
             gcode
         ):  # .split(self.values["END_OF_LINE_CHARACTERS"]):
-            if match := re.match("(?P<command>M0?[34])\D.*(?P<spindle>S\d+.?\d*)", commandline):
+            if match := re.match(r"(?P<command>M0?[34])\D.*(?P<spindle>S\d+.?\d*)", commandline):
                 percent = (
                     float(match.group("spindle")[1:]) * 100 / self.values["SPINDLE_SPEEDS"]["max"]
                 )
@@ -528,13 +528,13 @@ class Snapmaker(Path.Post.Processor.PostProcessor):
         relative = False
 
         for index, commandline in enumerate(gcode):
-            if re.match("G90(?:\D|$)", commandline):
+            if re.match(r"G90(?:\D|$)", commandline):
                 relative = False
-            elif re.match("G91(?:\D|$)", commandline):
+            elif re.match(r"G91(?:\D|$)", commandline):
                 relative = True
-            elif re.match("G0?[12](?:\D|$)", commandline):
+            elif re.match(r"G0?[12](?:\D|$)", commandline):
                 for axis, value in re.findall(
-                    "(?P<axis>[XYZ])(?P<value>-?\d+\.?\d*)(?:\D|$)", commandline
+                    r"(?P<axis>[XYZ])(?P<value>-?\d+\.?\d*)(?:\D|$)", commandline
                 ):
                     if relative:
                         position[axis] += float(value)