From 50859dc0b04101165528f9e0c5a1890611ee4cb7 Mon Sep 17 00:00:00 2001
From: Tony Narlock <tony@git-pull.com>
Date: Wed, 17 Aug 2022 06:26:33 +0200
Subject: [PATCH 1/2] chore: Server.new_session: Create session w/o name

---
 libtmux/server.py | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/libtmux/server.py b/libtmux/server.py
index beaa82ae0..e08cc3927 100644
--- a/libtmux/server.py
+++ b/libtmux/server.py
@@ -535,15 +535,17 @@ def new_session(
         ------
         :exc:`exc.BadSessionName`
         """
-        session_check_name(session_name)
-        assert session_name is not None
-
-        if self.has_session(session_name):
-            if kill_session:
-                self.cmd("kill-session", "-t%s" % session_name)
-                logger.info("session %s exists. killed it." % session_name)
-            else:
-                raise exc.TmuxSessionExists("Session named %s exists" % session_name)
+        if session_name is not None:
+            session_check_name(session_name)
+
+            if self.has_session(session_name):
+                if kill_session:
+                    self.cmd("kill-session", "-t%s" % session_name)
+                    logger.info("session %s exists. killed it." % session_name)
+                else:
+                    raise exc.TmuxSessionExists(
+                        "Session named %s exists" % session_name
+                    )
 
         logger.debug("creating session %s" % session_name)
 

From 0dfdc5b878ad9cef12516e9c5470c6bb4c609bf4 Mon Sep 17 00:00:00 2001
From: Tony Narlock <tony@git-pull.com>
Date: Wed, 17 Aug 2022 06:30:28 +0200
Subject: [PATCH 2/2] test: Server.new_session w/ no name

---
 tests/test_server.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tests/test_server.py b/tests/test_server.py
index 446a93849..bd73a171e 100644
--- a/tests/test_server.py
+++ b/tests/test_server.py
@@ -89,6 +89,14 @@ def test_new_session(server: Server) -> None:
     assert server.has_session("test_new_session")
 
 
+def test_new_session_no_name(server: Server) -> None:
+    """Server.new_session works with no name"""
+    mysession = server.new_session()
+    session_name = mysession.get("session_name")
+    assert session_name is not None
+    assert server.has_session(session_name)
+
+
 def test_new_session_shell(server: Server) -> None:
     """Server.new_session creates and returns valid session running with
     specified command"""