# Error encounterd while reading edf file **URL:** \ **Category:** Support & Discussions\ **Tags:** data-import\ **Created:** [December 2, 2021, 1:37pm UTC](https://mne.discourse.group/t/error-encounterd-while-reading-edf-file/4067 "2021-12-02T13:37:38Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![JaiC96](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/jaic96/32/1036_2.png) [@JaiC96](https://mne.discourse.group/u/JaiC96)\ **Post date:** [December 2, 2021, 1:37pm UTC](https://mne.discourse.group/t/error-encounterd-while-reading-edf-file/4067/1 "2021-12-02T13:37:38Z")
**❓ If you have a question or issue with MNE-Python, please include the following info:** - MNE version: mne-0.24.1 - operating system: Windows 11 Error encountered on google colab, same code is working good on windows Code : ```python for i in x_train: for j in y_train: while i[:5]==j[:5]: raw= mne.io.read_raw_edf(i,stim_channel='auto',preload=True) annot_train = mne.read_annotations(j) raw.set_annotations(annot_train, emit_warning=True) break ``` Error : ```python Extracting EDF parameters from /content/drive/My Drive/Sleep_data/hmc-sleep-staging/1.0.1/recordings/SN072.edf... EDF file detected --------------------------------------------------------------------------- ValueError Traceback (most recent call last) in () 2 for j in y_train: 3 while i[:5]==j[:5]: ----> 4 raw= mne.io.read_raw_edf(i) 5 annot_train = mne.read_annotations(j) 6 raw.set_annotations(annot_train, emit_warning=True) 5 frames /usr/local/lib/python3.7/dist-packages/mne/io/edf/edf.py in read_raw_edf(input_fname, eog, misc, stim_channel, exclude, infer_types, preload, verbose) 1347 return RawEDF(input_fname=input_fname, eog=eog, misc=misc, 1348 stim_channel=stim_channel, exclude=exclude, -> 1349 infer_types=infer_types, preload=preload, verbose=verbose) 1350 1351 in __init__ (self, input_fname, eog, misc, stim_channel, exclude, infer_types, preload, verbose) /usr/local/lib/python3.7/dist-packages/mne/io/edf/edf.py in __init__ (self, input_fname, eog, misc, stim_channel, exclude, infer_types, preload, verbose) 140 info, edf_info, orig_units = _get_info(input_fname, stim_channel, eog, 141 misc, exclude, infer_types, --> 142 preload) 143 logger.info('Creating raw.info structure...') 144 /usr/local/lib/python3.7/dist-packages/mne/io/edf/edf.py in _get_info(fname, stim_channel, eog, misc, exclude, infer_types, preload) 382 misc = misc if misc is not None else [] 383 --> 384 edf_info, orig_units = _read_header(fname, exclude, infer_types) 385 386 # XXX: `tal_ch_names` to pass to `_check_stim_channel` should be computed /usr/local/lib/python3.7/dist-packages/mne/io/edf/edf.py in _read_header(fname, exclude, infer_types) 369 logger.info('%s file detected' % ext.upper()) 370 if ext in ('bdf', 'edf'): --> 371 return _read_edf_header(fname, exclude, infer_types) 372 elif ext == 'gdf': 373 return _read_gdf_header(fname, exclude), None /usr/local/lib/python3.7/dist-packages/mne/io/edf/edf.py in _read_edf_header(fname, exclude, infer_types) 630 else: 631 meas_date = fid.read(8).decode('latin-1') --> 632 day, month, year = [int(x) for x in meas_date.split('.')] 633 year = year + 2000 if year < 85 else year + 1900 634 /usr/local/lib/python3.7/dist-packages/mne/io/edf/edf.py in (.0) 630 else: 631 meas_date = fid.read(8).decode('latin-1') --> 632 day, month, year = [int(x) for x in meas_date.split('.')] 633 year = year + 2000 if year < 85 else year + 1900 634 ValueError: invalid literal for int() with base 10: 'el="styl' ``` ---
**Author:** ![richard](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/richard/32/15_2.png) [@richard](https://mne.discourse.group/u/richard)\ **Post date:** [December 7, 2021, 11:42am UTC](https://mne.discourse.group/t/error-encounterd-while-reading-edf-file/4067/2 "2021-12-07T11:42:31Z")
Hello @JaiC96 and welcome to the forum! Any chance you could share this file with us so we can have a look? Best wishes, Richard