Fix deprecation warnings due to invalid escape sequences. (#3273)

* Fix deprecation warnings due to invalid escape sequences.

* Fix linter error.

moto/apigateway/urls.py

@@ -15,9 +15,9 @@ url_paths = {
     "{0}/restapis/(?P<function_id>[^/]+)/deployments/(?P<deployment_id>[^/]+)/?$": APIGatewayResponse().individual_deployment,
     "{0}/restapis/(?P<function_id>[^/]+)/resources/(?P<resource_id>[^/]+)/?$": APIGatewayResponse().resource_individual,
     "{0}/restapis/(?P<function_id>[^/]+)/resources/(?P<resource_id>[^/]+)/methods/(?P<method_name>[^/]+)/?$": APIGatewayResponse().resource_methods,
-    "{0}/restapis/(?P<function_id>[^/]+)/resources/(?P<resource_id>[^/]+)/methods/(?P<method_name>[^/]+)/responses/(?P<status_code>\d+)$": APIGatewayResponse().resource_method_responses,
+    r"{0}/restapis/(?P<function_id>[^/]+)/resources/(?P<resource_id>[^/]+)/methods/(?P<method_name>[^/]+)/responses/(?P<status_code>\d+)$": APIGatewayResponse().resource_method_responses,
     "{0}/restapis/(?P<function_id>[^/]+)/resources/(?P<resource_id>[^/]+)/methods/(?P<method_name>[^/]+)/integration/?$": APIGatewayResponse().integrations,
-    "{0}/restapis/(?P<function_id>[^/]+)/resources/(?P<resource_id>[^/]+)/methods/(?P<method_name>[^/]+)/integration/responses/(?P<status_code>\d+)/?$": APIGatewayResponse().integration_responses,
+    r"{0}/restapis/(?P<function_id>[^/]+)/resources/(?P<resource_id>[^/]+)/methods/(?P<method_name>[^/]+)/integration/responses/(?P<status_code>\d+)/?$": APIGatewayResponse().integration_responses,
     "{0}/apikeys$": APIGatewayResponse().apikeys,
     "{0}/apikeys/(?P<apikey>[^/]+)": APIGatewayResponse().apikey_individual,
     "{0}/usageplans$": APIGatewayResponse().usage_plans,

moto/ec2instanceconnect/urls.py

@@ -1,6 +1,6 @@
 from __future__ import unicode_literals
 from .responses import Ec2InstanceConnectResponse
 
-url_bases = ["https?://ec2-instance-connect\.(.+)\.amazonaws\.com"]
+url_bases = [r"https?://ec2-instance-connect\.(.+)\.amazonaws\.com"]
 
 url_paths = {"{0}/$": Ec2InstanceConnectResponse.dispatch}

moto/events/responses.py

@@ -183,9 +183,9 @@ class EventsHandler(BaseResponse):
 
         if sched_exp:
             if not (
-                re.match("^cron\(.*\)", sched_exp)
+                re.match(r"^cron\(.*\)", sched_exp)
                 or re.match(
-                    "^rate\(\d*\s(minute|minutes|hour|hours|day|days)\)", sched_exp
+                    r"^rate\(\d*\s(minute|minutes|hour|hours|day|days)\)", sched_exp
                 )
             ):
                 return self.error(

moto/managedblockchain/utils.py

@@ -14,7 +14,7 @@ def region_from_managedblckchain_url(url):
 
 
 def networkid_from_managedblockchain_url(full_url):
-    id_search = re.search("\/n-[A-Z0-9]{26}", full_url, re.IGNORECASE)
+    id_search = re.search(r"\/n-[A-Z0-9]{26}", full_url, re.IGNORECASE)
     return_id = None
     if id_search:
         return_id = id_search.group(0).replace("/", "")
@@ -28,7 +28,7 @@ def get_network_id():
 
 
 def memberid_from_managedblockchain_url(full_url):
-    id_search = re.search("\/m-[A-Z0-9]{26}", full_url, re.IGNORECASE)
+    id_search = re.search(r"\/m-[A-Z0-9]{26}", full_url, re.IGNORECASE)
     return_id = None
     if id_search:
         return_id = id_search.group(0).replace("/", "")
@@ -42,7 +42,7 @@ def get_member_id():
 
 
 def proposalid_from_managedblockchain_url(full_url):
-    id_search = re.search("\/p-[A-Z0-9]{26}", full_url, re.IGNORECASE)
+    id_search = re.search(r"\/p-[A-Z0-9]{26}", full_url, re.IGNORECASE)
     return_id = None
     if id_search:
         return_id = id_search.group(0).replace("/", "")
@@ -56,7 +56,7 @@ def get_proposal_id():
 
 
 def invitationid_from_managedblockchain_url(full_url):
-    id_search = re.search("\/in-[A-Z0-9]{26}", full_url, re.IGNORECASE)
+    id_search = re.search(r"\/in-[A-Z0-9]{26}", full_url, re.IGNORECASE)
     return_id = None
     if id_search:
         return_id = id_search.group(0).replace("/", "")
@@ -107,7 +107,7 @@ def admin_password_ok(password):
 
 
 def nodeid_from_managedblockchain_url(full_url):
-    id_search = re.search("\/nd-[A-Z0-9]{26}", full_url, re.IGNORECASE)
+    id_search = re.search(r"\/nd-[A-Z0-9]{26}", full_url, re.IGNORECASE)
     return_id = None
     if id_search:
         return_id = id_search.group(0).replace("/", "")

moto/rds/urls.py

@@ -1,6 +1,6 @@
 from __future__ import unicode_literals
 from .responses import RDSResponse
 
-url_bases = ["https?://rds(\..+)?.amazonaws.com"]
+url_bases = [r"https?://rds(\..+)?.amazonaws.com"]
 
 url_paths = {"{0}/$": RDSResponse.dispatch}

moto/route53/urls.py

@@ -13,12 +13,12 @@ def tag_response2(*args, **kwargs):
 
 
 url_paths = {
-    "{0}/(?P<api_version>[\d_-]+)/hostedzone$": Route53().list_or_create_hostzone_response,
-    "{0}/(?P<api_version>[\d_-]+)/hostedzone/(?P<zone_id>[^/]+)$": Route53().get_or_delete_hostzone_response,
-    "{0}/(?P<api_version>[\d_-]+)/hostedzone/(?P<zone_id>[^/]+)/rrset/?$": Route53().rrset_response,
-    "{0}/(?P<api_version>[\d_-]+)/hostedzonesbyname": Route53().list_hosted_zones_by_name_response,
-    "{0}/(?P<api_version>[\d_-]+)/healthcheck": Route53().health_check_response,
-    "{0}/(?P<api_version>[\d_-]+)/tags/healthcheck/(?P<zone_id>[^/]+)$": tag_response1,
-    "{0}/(?P<api_version>[\d_-]+)/tags/hostedzone/(?P<zone_id>[^/]+)$": tag_response2,
-    "{0}/(?P<api_version>[\d_-]+)/trafficpolicyinstances/*": Route53().not_implemented_response,
+    r"{0}/(?P<api_version>[\d_-]+)/hostedzone$": Route53().list_or_create_hostzone_response,
+    r"{0}/(?P<api_version>[\d_-]+)/hostedzone/(?P<zone_id>[^/]+)$": Route53().get_or_delete_hostzone_response,
+    r"{0}/(?P<api_version>[\d_-]+)/hostedzone/(?P<zone_id>[^/]+)/rrset/?$": Route53().rrset_response,
+    r"{0}/(?P<api_version>[\d_-]+)/hostedzonesbyname": Route53().list_hosted_zones_by_name_response,
+    r"{0}/(?P<api_version>[\d_-]+)/healthcheck": Route53().health_check_response,
+    r"{0}/(?P<api_version>[\d_-]+)/tags/healthcheck/(?P<zone_id>[^/]+)$": tag_response1,
+    r"{0}/(?P<api_version>[\d_-]+)/tags/hostedzone/(?P<zone_id>[^/]+)$": tag_response2,
+    r"{0}/(?P<api_version>[\d_-]+)/trafficpolicyinstances/*": Route53().not_implemented_response,
 }

moto/sqs/urls.py

@@ -7,5 +7,5 @@ dispatch = SQSResponse().dispatch
 
 url_paths = {
     "{0}/$": dispatch,
-    "{0}/(?P<account_id>\d+)/(?P<queue_name>[a-zA-Z0-9\-_\.]+)": dispatch,
+    r"{0}/(?P<account_id>\d+)/(?P<queue_name>[a-zA-Z0-9\-_\.]+)": dispatch,
 }