Fix dbic_bids.py compatibility with python 3.x

Author: mvdoc

bin/heudiconv

@@ -1725,7 +1725,6 @@ def _main(args):
     # Load heuristic -- better do it asap to make sure it loads correctly
     #
     heuristic = load_heuristic(os.path.realpath(args.heuristic_file))
-
     # TODO: Move into a function!
     study_sessions = get_study_sessions(
         dicom_dir_template, files_opt,

heuristics/dbic_bids.py

@@ -560,8 +560,7 @@ def infotoids(seqinfos, outdir):
             # e.g. {date}
             session_ = session_.format(**s._asdict())
         ses_markers.append(session_)
-
-    ses_markers = filter(bool, ses_markers)  # only present ones
+    ses_markers = list(filter(bool, ses_markers))  # only present ones
     session = None
     if ses_markers:
         # we have a session or possibly more than one even
@@ -628,7 +627,6 @@ def sanitize_str(value):
 def parse_dbic_protocol_name(protocol_name):
     """Parse protocol name according to our convention with minimal set of fixups
     """
-
     # Since Yarik didn't know better place to put it in, but could migrate outside
     # at some point
     protocol_name = protocol_name.replace("anat_T1w", "anat-T1w")