From feea2f3c44dd653efd106476777add1975fbe3ae Mon Sep 17 00:00:00 2001
From: Gavin D'souza <gavin18d@gmail.com>
Date: Wed, 26 May 2021 16:32:41 +0530
Subject: [PATCH] fix: Use raw string to avoid invalid escape sequence errors

---
 .github/helper/roulette.py |  2 +-
 frappe/utils/__init__.py   | 11 +++++++----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/.github/helper/roulette.py b/.github/helper/roulette.py
index ba775d6794..ea4f07b9f7 100644
--- a/.github/helper/roulette.py
+++ b/.github/helper/roulette.py
@@ -18,7 +18,7 @@ def is_js(file):
     return file.endswith("js")
 
 def is_docs(file):
-    regex = re.compile('\.(md|png|jpg|jpeg)$|^.github|LICENSE')
+    regex = re.compile(r'\.(md|png|jpg|jpeg)$|^.github|LICENSE')
     return bool(regex.search(file))
 
 
diff --git a/frappe/utils/__init__.py b/frappe/utils/__init__.py
index e776d9945a..94eed0b2bb 100644
--- a/frappe/utils/__init__.py
+++ b/frappe/utils/__init__.py
@@ -117,7 +117,10 @@ def validate_email_address(email_str, throw=False):
 
 		else:
 			email_id = extract_email_id(e)
-			match = re.match("[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?", email_id.lower()) if email_id else None
+			match = re.match(
+				r"[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?",
+				email_id.lower()
+			) if email_id else None
 
 			if not match:
 				_valid = False
@@ -287,7 +290,7 @@ def remove_blanks(d):
 
 def strip_html_tags(text):
 	"""Remove html tags from text"""
-	return re.sub("\<[^>]*\>", "", text)
+	return re.sub(r"\<[^>]*\>", "", text)
 
 def get_file_timestamp(fn):
 	"""
@@ -499,7 +502,7 @@ def is_markdown(text):
 	elif "<!-- html -->" in text:
 		return False
 	else:
-		return not re.search("<p[\s]*>|<br[\s]*>", text)
+		return not re.search(r"<p[\s]*>|<br[\s]*>", text)
 
 def get_sites(sites_path=None):
 	if not sites_path:
@@ -609,7 +612,7 @@ def check_format(email_id):
 
 def get_name_from_email_string(email_string, email_id, name):
 	name = email_string.replace(email_id, '')
-	name = re.sub('[^A-Za-z0-9\u00C0-\u024F\/\_\' ]+', '', name).strip()
+	name = re.sub(r'[^A-Za-z0-9\u00C0-\u024F\/\_\' ]+', '', name).strip()
 	if not name:
 		name = email_id
 	return name