A small python script for enter a tmux session effectively.

tmux_selector

#!/usr/bin/env python
import os

output = os.popen("tmux ls -F \\#{session_name}").read()
sessions = output.strip().split("\n")

print("Sessions:")
for index in range(len(sessions)):
    print(f"{index} - {sessions[index]}")

input_value = input("Please select a session <Index or Name>(default):")
if input_value.isdigit():
    sess_name = sessions[int(input_value)]
elif not input_value:
    sess_name = "default"
else:
    sess_name = input_value

if sess_name not in sessions:
    answer = input(f"New a session `{sess_name}`?(Y/N)")
    answer == "Y" and os.system(f"tmux new -s {sess_name}")  # pyright: ignore
else:
    os.system(f"tmux attach -t {sess_name}")