max() arg is an empty sequence error on listing empty tasks table

[eugenetriguba]

If I have a pyproject.toml file with an empty [tool.taskipy.tasks] table, taskipy.help.HelpFormatter.print errors out on the call to max with "max() arg is an empty sequence". I'd expect that there should instead be an empty table printed or something like "No tasks."

$ ls
pyproject.toml
$ cat pyproject.toml
[tool.taskipy.tasks]
$ task -l
max() arg is an empty sequence
$ echo $?
1

$ echo 'test_task = "echo 'test'"' >> pyproject.toml
$ cat pyproject.toml
[tool.taskipy.tasks]
test_task = "echo test"
$ task -l
test_task echo test

Environment:

$ pip list
Package    Version
---------- -------
colorama   0.4.5
pip        22.0.4
psutil     5.9.1
setuptools 58.1.0
taskipy    1.10.2
tomli      2.0.1

[illBeRoy]

Hey! Thanks for the bug report!
I fixed the bug and opened a PR here: #52
Please review when you have some free time and I'll merge it once approved :)

[illBeRoy]

Fix released as taskipy 1.10.13