Fix style issues.

fmriprep/cli/parser.py

@@ -98,7 +98,7 @@ def _drop_sub(value):
         return value[4:] if value.startswith('sub-') else value
 
     def _drop_ses(value):
-        return value[4:] if value.startswith("ses-") else value
+        return value[4:] if value.startswith('ses-') else value
 
     def _process_value(value):
         import bids
@@ -934,7 +934,7 @@ def parse_args(args=None, namespace=None):
 
 def compute_subworkflows(
     *,
-    layout: 'BIDSLayout',
+    layout: BIDSLayout,
     participant_ids: list,
     session_ids: list | None = None,
 ) -> list:

fmriprep/cli/workflow.py

@@ -35,7 +35,6 @@
 def build_workflow(config_file, retval):
     """Create the Nipype Workflow that supports the whole execution graph."""
 
-    from niworkflows.utils.bids import collect_participants
     from niworkflows.utils.misc import check_valid_fs_license
 
     from fmriprep.reports.core import generate_reports

fmriprep/workflows/base.py

@@ -186,9 +186,9 @@ def init_single_subject_wf(
     from fmriprep.workflows.bold.base import init_bold_wf
 
     name = (
-        f"sub_{subject_id}_ses_{session_id}_wf"
+        f'sub_{subject_id}_ses_{session_id}_wf'
         if session_id
-        else f"sub_{subject_id}_wf"
+        else f'sub_{subject_id}_wf'
     )
 
     workflow = Workflow(name=name)