diff --git a/frappe/core/doctype/data_export/exporter.py b/frappe/core/doctype/data_export/exporter.py
index bec8cde7ea..5d600cc0db 100644
--- a/frappe/core/doctype/data_export/exporter.py
+++ b/frappe/core/doctype/data_export/exporter.py
@@ -282,7 +282,7 @@ class DataExporter:
 				try:
 					sflags = self.docs_to_export.get("flags", "I,U").upper()
 					flags = 0
-					for a in re.split('\W+',sflags):
+					for a in re.split(r'\W+', sflags):
 						flags = flags | reflags.get(a,0)
 
 					c = re.compile(names, flags)
diff --git a/frappe/patches/v5_0/fix_text_editor_file_urls.py b/frappe/patches/v5_0/fix_text_editor_file_urls.py
index d91aad0234..a6d7d2fb9a 100644
--- a/frappe/patches/v5_0/fix_text_editor_file_urls.py
+++ b/frappe/patches/v5_0/fix_text_editor_file_urls.py
@@ -33,8 +33,7 @@ def execute():
 def scrub_relative_urls(html):
 	"""prepend a slash before a relative url"""
 	try:
-		return re.sub("""src[\s]*=[\s]*['"]files/([^'"]*)['"]""", 'src="/files/\g<1>"', html)
-		# return re.sub("""(src|href)[^\w'"]*['"](?!http|ftp|mailto|/|#|%|{|cid:|\.com/www\.)([^'" >]+)['"]""", '\g<1>="/\g<2>"', html)
+		return re.sub(r'src[\s]*=[\s]*[\'"]files/([^\'"]*)[\'"]', r'src="/files/\g<1>"', html)
 	except:
 		print("Error", html)
 		raise
diff --git a/frappe/utils/formatters.py b/frappe/utils/formatters.py
index 5d1e9bdb19..7913413878 100644
--- a/frappe/utils/formatters.py
+++ b/frappe/utils/formatters.py
@@ -78,7 +78,7 @@ def format_value(value, df=None, doc=None, currency=None, translated=False):
 		return "{}%".format(flt(value, 2))
 
 	elif df.get("fieldtype") in ("Text", "Small Text"):
-		if not re.search("(\<br|\<div|\<p)", value):
+		if not re.search(r"(<br|<div|<p)", value):
 			return frappe.safe_decode(value).replace("\n", "<br>")
 
 	elif df.get("fieldtype") == "Markdown Editor":
diff --git a/frappe/website/doctype/web_page/test_web_page.py b/frappe/website/doctype/web_page/test_web_page.py
index a481337978..7a2ddc6961 100644
--- a/frappe/website/doctype/web_page/test_web_page.py
+++ b/frappe/website/doctype/web_page/test_web_page.py
@@ -39,7 +39,7 @@ class TestWebPage(unittest.TestCase):
 			published = 1,
 			content_type = 'Rich Text',
 			main_section = 'rich text',
-			main_section_md = '# h1\n\markdown content',
+			main_section_md = '# h1\nmarkdown content',
 			main_section_html = '<div>html content</div>'
 		)).insert()