Setting workflow.use_conda = True in Snakefile stopped working

[sebschmi]

Snakemake version
7.32.3

Describe the bug
In version 7.16 or so, I was able to add the line workflow.use_conda = True into my snakefile to not have to bother setting it manually on the command line.

Logs

AttributeError in file /home/sebschmi/git/helsitigs/Snakefile, line 30:
property 'use_conda' of 'Workflow' object has no setter
  File "/home/sebschmi/git/helsitigs/Snakefile", line 30, in <module>

Minimal example
Any valid snakefile with the line workflow.use_conda = True.

Additional context
I searched this repo and stackoverflow, but there was no mention of why using this line is not supported anymore. So I assume it was an accident and hence a bug.
If there is a new way to setup snakemake to use conda by default, without having to specify any extra command line arguments such as --use-conda or --config, I would be happy to know.

[ASLeonard]

Some of those variables (like workflow.singularity_args) was changed recently and now can be set with workflow._singularity_args, with a leading underscore before the variable. I assume this would work for you

workflow._use_conda = True

[sebschmi]

Yes this works. Thanks!

[corneliusroemer]

I really really love snakemake, but this is another one of numerous examples of snakemake introducing breaking changes in non-semantic-versioning-compliant ways. 😞