Fix deprecation warning from datetime (#847)

consideRatio · web-flow · commit da9f52a7e312 · 2025-01-20T23:59:09.000+01:00
diff --git a/dask-gateway-server/dask_gateway_server/tls.py b/dask-gateway-server/dask_gateway_server/tls.py
@@ -1,4 +1,4 @@
-from datetime import datetime, timedelta
+from datetime import datetime, timedelta, timezone
 
 from cryptography import x509
 from cryptography.hazmat.backends import default_backend
@@ -40,7 +40,7 @@ def new_keypair(sni):
             x509.DNSName("skein-internal"),
         ]
     )
-    now = datetime.utcnow()
+    now = datetime.now(timezone.utc)
     cert = (
         x509.CertificateBuilder()
         .subject_name(dask_internal)

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-from datetime import datetime, timedelta`
	`1`	`+from datetime import datetime, timedelta, timezone`
`2`	`2`
`3`	`3`	`from cryptography import x509`
`4`	`4`	`from cryptography.hazmat.backends import default_backend`
`@@ -40,7 +40,7 @@ def new_keypair(sni):`
`40`	`40`	`x509.DNSName("skein-internal"),`
`41`	`41`	`]`
`42`	`42`	`)`
`43`		`- now = datetime.utcnow()`
	`43`	`+ now = datetime.now(timezone.utc)`
`44`	`44`	`cert = (`
`45`	`45`	`x509.CertificateBuilder()`
`46`	`46`	`.subject_name(dask_internal)`