smriprep.utils.misc module

Self-contained utilities to be used within Function nodes.

smriprep.utils.misc.apply_lut(in_dseg, lut, newpath=None)[source]: Map the input discrete segmentation to a new label set (lookup table, LUT).

smriprep.utils.misc.fs_isRunning(subjects_dir, subject_id, mtime_tol=86400, logger=None)[source]

Checks FreeSurfer subjects dir for presence of recon-all blocking IsRunning files, and optionally removes any based on the modification time.

Parameters:

subjects_dir (os.PathLike or None) – Existing FreeSurfer subjects directory
subject_id (str) – Subject label
mtime_tol (int) – Tolerance time (in seconds) between current time and last modification of recon-all.log

Returns:

subjects_dir

Return type:

os.PathLike or None

smriprep.utils.misc.stringify_sessions(lst: list[str], max_length: int = 10, digest_size: int = 2) → str[source]

Convert a list of session into a string identifier.

If the list has only one element, it returns that element. If the list has more than one element, it concatenates them with ‘+’. If the concatenated string exceeds max_length, it returns a string starting with ‘multi+’ followed by a BLAKE2b hash of the concatenated string.

Example

>>> stringify_sessions(['a'])
'a'
>>> stringify_sessions(['a', 'b', 'c'])
'a-b-c'
>>> stringify_sessions(['a', 'b', 'toolong'])
'multi-32b3'
>>> stringify_sessions(['a', 'b', 'toolong'], max_length=12)
'a-b-toolong'
>>> stringify_sessions(['a', 'b', 'toolong'], digest_size=4)
'multi-f1edd4fd'