Question: Attribute error when running some tools after updating to galaxy 17.05
gravatar for david.roquis
8 months ago by
david.roquis20 wrote:

Dear Galaxy Community,

I recently update my cluster-oriented local instance of Galaxy from version 17.01 to 17.05. Since then, I have faced an issue with some of my tools (such as bismark methylation extractor, which I got from the toolshed). Galaxy is unable to finish any of the jobs with this tool and display the following error message

Traceback (most recent call last):
  File "/mnt/extStorage/galaxy-app/lib/galaxy/jobs/runners/", line 630, in finish_job
    job_state.job_wrapper.finish( stdout, stderr, exit_code )
  File "/mnt/extStorage/galaxy-app/lib/galaxy/jobs/", line 1301, in finish
  File "/mnt/extStorage/galaxy-app/lib/galaxy/model/", line 2031, in set_peek
    return self.datatype.set_peek( self, is_multi_byte=is_multi_byte )
  File "/mnt/extStorage/galaxy-app/lib/galaxy/datatypes/", line 782, in set_peek
    dataset.peek = get_file_peek( dataset.file_name, is_multi_byte=is_multi_byte, WIDTH=WIDTH, skipchars=skipchars, line_wrap=line_wrap )
  File "/mnt/extStorage/galaxy-app/lib/galaxy/datatypes/", line 1007, in get_file_peek
    temp = compression_utils.get_fileobj( file_name, "U" )
  File "/mnt/extStorage/galaxy-app/lib/galaxy/util/", line 32, in get_fileobj
    return zipfile.os_zipfile(filename, cmode)
AttributeError: 'module' object has no attribute 'os_zipfile'

The tool was working without any issues prior to upgrading galaxy, and now all jobs fail this way. The tool generate three reports (in the form of a text file) and a gzipped file containing several more (large) text files). Would anyone has a clue about what's going on?



ADD COMMENTlink modified 8 months ago by Daniel Blankenberg ♦♦ 1.7k • written 8 months ago by david.roquis20
gravatar for Daniel Blankenberg
8 months ago by
Daniel Blankenberg ♦♦ 1.7k
United States
Daniel Blankenberg ♦♦ 1.7k wrote:

Hi David,

Is it possible that you have a ZIP file instead of a gzip'd file? A potential fix has been submitted here:

If you like, you can try to apply the patch before it is committed and let us know if it helps (

Thanks for using Galaxy,


ADD COMMENTlink modified 8 months ago • written 8 months ago by Daniel Blankenberg ♦♦ 1.7k

Hi Dan,

Thanks for this very quick answer. I have applied the fix, and it now works flawlessly!



ADD REPLYlink written 8 months ago by david.roquis20
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