From 8f8bd981641e0988b9ed3276c8f2435645269b3f Mon Sep 17 00:00:00 2001
From: Christian Clauss <cclauss@me.com>
Date: Fri, 10 Mar 2023 06:28:44 +0100
Subject: [PATCH] all: Fix strings with backslash by using raw string literals.

---
 docs/conf.py                   | 2 +-
 ports/cc3200/tools/uniflash.py | 2 +-
 tools/insert-usb-ids.py        | 2 +-
 tools/uf2conv.py               | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/docs/conf.py b/docs/conf.py
index 933e7b34b2..a966b3a025 100755
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -233,7 +233,7 @@ latex_elements = {
 # Additional stuff for the LaTeX preamble.
 #'preamble': '',
 # Include 3 levels of headers in PDF ToC
-'preamble': '\setcounter{tocdepth}{2}',
+'preamble': r'\setcounter{tocdepth}{2}',
 }
 
 # Grouping the document tree into LaTeX files. List of tuples
diff --git a/ports/cc3200/tools/uniflash.py b/ports/cc3200/tools/uniflash.py
index 0ce9d0703a..83445a12d3 100644
--- a/ports/cc3200/tools/uniflash.py
+++ b/ports/cc3200/tools/uniflash.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 
-"""
+r"""
 Flash the WiPy (format, update service pack and program).
 
 Example:
diff --git a/tools/insert-usb-ids.py b/tools/insert-usb-ids.py
index 9b53f3f68a..177a68c4a4 100644
--- a/tools/insert-usb-ids.py
+++ b/tools/insert-usb-ids.py
@@ -16,7 +16,7 @@ def parse_usb_ids(filename):
     rv = dict()
     for line in open(filename).readlines():
         line = line.rstrip("\r\n")
-        match = re.match("^#define\s+(\w+)\s+\(0x([0-9A-Fa-f]+)\)$", line)
+        match = re.match(r"^#define\s+(\w+)\s+\(0x([0-9A-Fa-f]+)\)$", line)
         if match and match.group(1).startswith(config_prefix):
             key = match.group(1).replace(config_prefix, "USB_")
             val = match.group(2)
diff --git a/tools/uf2conv.py b/tools/uf2conv.py
index ef3e481449..b66e52876b 100644
--- a/tools/uf2conv.py
+++ b/tools/uf2conv.py
@@ -271,7 +271,7 @@ def get_drives():
             ]
         )
         for line in to_str(r).split("\n"):
-            words = re.split("\s+", line)
+            words = re.split(r"\s+", line)
             if len(words) >= 3 and words[1] == "2" and words[2] == "FAT":
                 drives.append(words[0])
     else: