--conda-create-envs-only causes an AttributeError

[jlanga]

Snakemake version
8.0.1

Describe the bug
The --conda-create-envs-only causes an AttributeError

Logs

Traceback (most recent call last):
  File "/home/jlanga/.miniconda3/envs/snake8/lib/python3.12/site-packages/snakemake/cli.py", line 1948, in args_to_api
    dag_api.conda_create_envs()
  File "/home/jlanga/.miniconda3/envs/snake8/lib/python3.12/site-packages/snakemake/api.py", line 636, in conda_create_envs
    self.workflow_api._workflow.conda_create_envs()
  File "/home/jlanga/.miniconda3/envs/snake8/lib/python3.12/site-packages/snakemake/workflow.py", line 981, in conda_create_envs
    ignore_incomplete=self.execution_settings.ignore_incomplete,
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'ignore_incomplete'

Minimal example

snakemake --conda-create-envs-only

Additional context
Happens in Python 3.12 and 3.11. Doesn't happen in Snakemake 7.20.0.
Happens also when using the snakemake/snakemake-github-action.

[mdrago98]

I was able to replicate the same issue calling the --dags flag on snakemake 8.0.1 python version 3.11. Assuming something happened to the self.execution_settings.ignore_incomplete attribute and will affect all flags referencing this attribute

[jlanga]

Fixed for me in 8.1.0

[gdrolet]

I have the same error as OP using 8.1.0.

Reverting back to my old version (7.22), the error is gone. Issue should be reopened.

[johnne]

I have the same error on 8.0.0, and 8.1.2.

[Nicolas-Fernandez]

Hi dear all,
Same in 8.2.1
Thank for your help, have a nice day,
Best,
Nicolas