Version-Release number of selected component:
dnf-1.1.10-5.fc25

Additional info:
reporter:       libreport-2.8.0
cmdline:        /usr/libexec/system-python /bin/dnf update -y
executable:     /bin/dnf
kernel:         4.9.3-200.fc25.x86_64
pkg_fingerprint: 4089 D8F2 FDB1 9C98
pkg_vendor:     Fedora Project
runlevel:       N 5
type:           Python3
uid:            0

Truncated backtrace:
repo.py:406:_progress_cb:SystemError: PyEval_EvalFrameEx returned a result with an error set

OSError: [Errno 5] Input/output error

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/bin/dnf", line 58, in <module>
    main.user_main(sys.argv[1:], exit_code=True)
  File "/usr/lib/python3.5/site-packages/dnf/cli/main.py", line 174, in user_main
    errcode = main(args)
  File "/usr/lib/python3.5/site-packages/dnf/cli/main.py", line 60, in main
    return _main(base, args)
  File "/usr/lib/python3.5/site-packages/dnf/cli/main.py", line 112, in _main
    cli.run()
  File "/usr/lib/python3.5/site-packages/dnf/cli/cli.py", line 1098, in run
    self._process_demands()
  File "/usr/lib/python3.5/site-packages/dnf/cli/cli.py", line 813, in _process_demands
    load_available_repos=lar)
  File "/usr/lib/python3.5/site-packages/dnf/base.py", line 239, in fill_sack
    self._add_repo_to_sack(r)
  File "/usr/lib/python3.5/site-packages/dnf/base.py", line 111, in _add_repo_to_sack
    repo.load()
  File "/usr/lib/python3.5/site-packages/dnf/repo.py", line 836, in load
    self._handle_load(handle)
  File "/usr/lib/python3.5/site-packages/dnf/repo.py", line 591, in _handle_load
    return self._handle_load_core(handle)
  File "/usr/lib/python3.5/site-packages/dnf/repo.py", line 604, in _handle_load_core
    result = handle.perform()
  File "/usr/lib/python3.5/site-packages/dnf/repo.py", line 226, in perform
    return super(_Handle, self).perform(result)
  File "/usr/lib64/python3.5/site-packages/librepo/__init__.py", line 1506, in perform
    _librepo.Handle.perform(self, result)
  File "/usr/lib/python3.5/site-packages/dnf/repo.py", line 406, in _progress_cb
    self.progress.progress(self, done)
SystemError: PyEval_EvalFrameEx returned a result with an error set

Local variables in innermost frame:
self: <dnf.repo.MDPayload object at 0x7f568d2ede10>
done: 0.0
cbdata: None
total: 0.0