diff --git a/frappe/core/doctype/doctype/doctype.py b/frappe/core/doctype/doctype/doctype.py
index 3588cc553a..abbb4bd191 100644
--- a/frappe/core/doctype/doctype/doctype.py
+++ b/frappe/core/doctype/doctype/doctype.py
@@ -915,7 +915,7 @@ def validate_fields(meta):
 		for field in depends_on_fields:
 			depends_on = docfield.get(field, None)
 			if depends_on and ("=" in depends_on) and \
-				re.match("""[\w\.:_]+\s*={1}\s*[\w\.@'"]+""", depends_on):
+				re.match(r'[\w\.:_]+\s*={1}\s*[\w\.@\'"]+', depends_on):
 				frappe.throw(_("Invalid {0} condition").format(frappe.unscrub(field)), frappe.ValidationError)
 
 	def check_table_multiselect_option(docfield):
diff --git a/frappe/core/doctype/doctype/test_doctype.py b/frappe/core/doctype/doctype/test_doctype.py
index bfa9d0ec8a..9c492d2c36 100644
--- a/frappe/core/doctype/doctype/test_doctype.py
+++ b/frappe/core/doctype/doctype/test_doctype.py
@@ -92,7 +92,7 @@ class TestDocType(unittest.TestCase):
 			fields=["parent", "depends_on", "collapsible_depends_on", "mandatory_depends_on",\
 				"read_only_depends_on", "fieldname", "fieldtype"])
 
-		pattern = """[\w\.:_]+\s*={1}\s*[\w\.@'"]+"""
+		pattern = r'[\w\.:_]+\s*={1}\s*[\w\.@\'"]+'
 		for field in docfields:
 			for depends_on in ["depends_on", "collapsible_depends_on", "mandatory_depends_on", "read_only_depends_on"]:
 				condition = field.get(depends_on)
@@ -517,4 +517,4 @@ def new_doctype(name, unique=0, depends_on='', fields=None):
 		for f in fields:
 			doc.append('fields', f)
 
-	return doc
\ No newline at end of file
+	return doc
diff --git a/frappe/printing/doctype/print_format/test_print_format.py b/frappe/printing/doctype/print_format/test_print_format.py
index 7e30bda23e..121916ae5f 100644
--- a/frappe/printing/doctype/print_format/test_print_format.py
+++ b/frappe/printing/doctype/print_format/test_print_format.py
@@ -12,13 +12,13 @@ class TestPrintFormat(unittest.TestCase):
 	def test_print_user(self, style=None):
 		print_html = frappe.get_print("User", "Administrator", style=style)
 		self.assertTrue("<label>First Name: </label>" in print_html)
-		self.assertTrue(re.findall('<div class="col-xs-[^"]*">[\s]*administrator[\s]*</div>', print_html))
+		self.assertTrue(re.findall(r'<div class="col-xs-[^"]*">[\s]*administrator[\s]*</div>', print_html))
 		return print_html
 
 	def test_print_user_standard(self):
 		print_html = self.test_print_user("Standard")
-		self.assertTrue(re.findall('\.print-format {[\s]*font-size: 9pt;', print_html))
-		self.assertFalse(re.findall('th {[\s]*background-color: #eee;[\s]*}', print_html))
+		self.assertTrue(re.findall(r'\.print-format {[\s]*font-size: 9pt;', print_html))
+		self.assertFalse(re.findall(r'th {[\s]*background-color: #eee;[\s]*}', print_html))
 		self.assertFalse("font-family: serif;" in print_html)
 
 	def test_print_user_modern(self):
diff --git a/frappe/utils/global_search.py b/frappe/utils/global_search.py
index 1c067d0146..c20f3b29d4 100644
--- a/frappe/utils/global_search.py
+++ b/frappe/utils/global_search.py
@@ -348,7 +348,7 @@ def get_formatted_value(value, field):
 
 	if getattr(field, 'fieldtype', None) in ["Text", "Text Editor"]:
 		value = unescape_html(frappe.safe_decode(value))
-		value = (re.subn(r'<[\s]*(script|style).*?</\1>(?s)', '', text_type(value))[0])
+		value = (re.subn(r'(?s)<[\s]*(script|style).*?</\1>', '', text_type(value))[0])
 		value = ' '.join(value.split())
 	return field.label + " : " + strip_html_tags(text_type(value))