s/multiuser/jupyterhub

jupyterhub/utils.py

@@ -0,0 +1,30 @@
+"""Miscellaneous utilities"""
+
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+import socket
+import time
+
+from IPython.html.utils import url_path_join
+
+def random_port():
+    """get a single random port"""
+    sock = socket.socket()
+    sock.bind(('', 0))
+    port = sock.getsockname()[1]
+    sock.close()
+    return port
+
+
+def wait_for_server(ip, port, timeout=10):
+    """wait for a server to show up at ip:port"""
+    tic = time.time()
+    while time.time() - tic < timeout:
+        try:
+            socket.create_connection((ip, port))
+        except socket.error:
+            time.sleep(0.1)
+        else:
+            break
+