mf4 file index error

[pr0ximo]

Python version

3.7.4 (default, Aug 9 2019, 18:34:13) [MSC v.1915 64 bit (AMD64)]

Platform information

Anaconda

Numpy version

version 1.16.5

mdfreader version

version 3.3

Description

import mdfreader a = mdfreader.Mdf('myfile.mf4')

output:

IndexError Traceback (most recent call last)

in ----> 1 a = mdfreader.Mdf('myfile.mf4', metadata=2) C:\ProgramData\Anaconda3\lib\site-packages\mdfreader\mdf.py in __init__(self, file_name, channel_list, convert_after_read, filter_channel_names, no_data_loading, compression, convert_tables, metadata) 158 no_data_loading=no_data_loading, 159 compression=compression, --> 160 metadata=metadata) 161 162 def add_channel(self, channel_name, data, master_channel, master_type=1, unit='', description='', conversion=None, C:\ProgramData\Anaconda3\lib\site-packages\mdfreader\mdfreader.py in read(self, file_name, multi_processed, channel_list, convert_after_read, filter_channel_names, no_data_loading, compression, metadata) 411 if not no_data_loading: 412 self.read4(self.fileName, None, multi_processed, channel_list, --> 413 convert_after_read, compression, metadata) 414 else: # populate minimum mdf structure 415 self._noDataLoading = True C:\ProgramData\Anaconda3\lib\site-packages\mdfreader\mdf4reader.py in read4(self, file_name, info, multi_processed, channel_list, convert_after_read, compression, metadata) 1239 if info is None: 1240 if self.info is None: -> 1241 info = Info4(self.fileName, None, minimal=minimal) 1242 else: 1243 info = self.info C:\ProgramData\Anaconda3\lib\site-packages\mdfreader\mdfinfo4.py in __init__(self, file_name, fid, minimal) 1558 (self.fid, self.fileName, self.zipfile) = _open_mdf(self.fileName) 1559 if self.fileName is not None and fid is None: -> 1560 self.read_info(self.fid, minimal) 1561 # Close the file 1562 self.fid.close() C:\ProgramData\Anaconda3\lib\site-packages\mdfreader\mdfinfo4.py in read_info(self, fid, minimal) 1581 1582 # reads Header HDBlock -> 1583 self['HD'].update(HDBlock(fid)) 1584 1585 # reads File History blocks, always exists C:\ProgramData\Anaconda3\lib\site-packages\mdfreader\mdfinfo4.py in __init__(self, fid) 228 def __init__(self, fid=None): 229 if fid is not None: --> 230 self.read(fid) 231 232 def read(self, fid=None): C:\ProgramData\Anaconda3\lib\site-packages\mdfreader\mdfinfo4.py in read(self, fid) 254 self['Comment'] = {} 255 comment = CommentBlock() --> 256 comment.read_cm_hd(fid=fid, pointer=self['hd_md_comment']) 257 self['Comment'].update(comment) 258 C:\ProgramData\Anaconda3\lib\site-packages\mdfreader\mdfinfo4.py in read_cm_hd(self, fid, pointer) 435 tmp = xml_tree.common_properties 436 for t in range(tmp.countchildren()): --> 437 self[tmp.e[t].attrib.values()[0]] = tmp.e[t].text 438 except AttributeError: 439 pass # optional src/lxml/objectify.pyx in lxml.objectify.ObjectifiedElement.__getitem__() IndexError: 8

[ratal]

Hi Temporarily, you could add IndexError to the following exception to understand what is wrong or be able to read the file. Using MDFValidator (free from Vector), can you have a look and send the content of HD Block comment ? I guess it is not following the standard schema or is empty.

[ratal]

You coulf also try to replace by this more modern script:

for t in tmp.e:
      self[t.attrib.values()[0]] = t.text