fix eeglab export rawarray filenames (#10927)

* fix eeglab export rawarray filenames

* fix flake8 doc style

* append changes to latest.inc names.inc

* fix typo latest.inc

* fix typo 2

* fix reference to public function

* remove try-except use condition

* empty line names.inc

Co-authored-by: RezaNasri <rezanasri@outlook.com>

doc/changes/latest.inc

@@ -111,6 +111,8 @@ Enhancements
 
 Bugs
 ~~~~
+- Fix bug in :func:`mne.export.export_raw` to ignore None value in filenames attribute of :class:`mne.io.RawArray` (:gh:`10927` by :newcontrib:`Reza Nasri`)
+
 - Fix bug in :func:`mne.io.read_raw_edf` to allow reading in all Hypnodyne ZMax EDFs to be read in without issues (:gh:`10754` by :newcontrib:`Frederik Weber`)
 
 - Fix bug in :func:`mne.Epochs.drop_bad` where data was loaded although no rejection had to be performed (:gh:`10718` by :newcontrib:`Lukas Gemein`)

doc/changes/names.inc

@@ -459,3 +459,5 @@
 .. _Frederik Weber: https://github.com/Frederik-D-Weber
 
 .. _Mingjian He: https://github.com/mh105
+
+.. _Reza Nasri: https://github.com/0reza

mne/export/_eeglab.py

@@ -17,7 +17,8 @@ def _export_raw(fname, raw):
 
     # remove extra epoc and STI channels
     drop_chs = ['epoc']
-    if not (raw.filenames[0].endswith('.fif')):
+    # filenames attribute of RawArray is filled with None
+    if raw.filenames[0] and not (raw.filenames[0].endswith('.fif')):
         drop_chs.append('STI 014')
 
     ch_names = [ch for ch in raw.ch_names if ch not in drop_chs]