Version-Release number of selected component:
python3-mypy-0.620-1.fc28

Additional info:
reporter:       libreport-2.9.5
cmdline:        /usr/bin/python3 /usr/bin/mypy --show-column-numbers --shadow-file /home/se/documents/rommel/webteam/homepage/rommelhp/wsgi.py /tmp/nvimx3ExN4/12/wsgi.py /home/se/documents/rommel/webteam/homepage/rommelhp/wsgi.py
crash_function: lookup_qualified_stnode
exception_type: AssertionError
executable:     /usr/bin/mypy
interpreter:    python3-3.6.6-1.fc28.x86_64
kernel:         4.17.18-200.fc28.x86_64
runlevel:       N 5
type:           Python3
uid:            1000

Truncated backtrace:
fixup.py:259:lookup_qualified_stnode:AssertionError: Cannot find collections.ChainMap

Traceback (most recent call last):
  File "/usr/bin/mypy", line 11, in <module>
    load_entry_point('mypy==0.620', 'console_scripts', 'mypy')()
  File "/usr/lib/python3.6/site-packages/mypy/__main__.py", line 8, in console_entry
    main(sys.argv[0])
  File "/usr/lib/python3.6/site-packages/mypy/main.py", line 91, in main
    res = type_check_only(sources, bin_dir, options, flush_errors, fscache)  # noqa
  File "/usr/lib/python3.6/site-packages/mypy/main.py", line 148, in type_check_only
    fscache=fscache)
  File "/usr/lib/python3.6/site-packages/mypy/build.py", line 177, in build
    flush_errors, fscache)
  File "/usr/lib/python3.6/site-packages/mypy/build.py", line 350, in _build
    graph = dispatch(sources, manager)
  File "/usr/lib/python3.6/site-packages/mypy/build.py", line 2564, in dispatch
    process_graph(graph, manager)
  File "/usr/lib/python3.6/site-packages/mypy/build.py", line 2850, in process_graph
    process_fresh_modules(graph, prev_scc, manager)
  File "/usr/lib/python3.6/site-packages/mypy/build.py", line 2936, in process_fresh_modules
    graph[id].fix_cross_refs()
  File "/usr/lib/python3.6/site-packages/mypy/build.py", line 1979, in fix_cross_refs
    self.options.use_fine_grained_cache)
  File "/usr/lib/python3.6/site-packages/mypy/fixup.py", line 24, in fixup_module
    node_fixer.visit_symbol_table(tree.names)
  File "/usr/lib/python3.6/site-packages/mypy/fixup.py", line 89, in visit_symbol_table
    value.node.accept(self)
  File "/usr/lib/python3.6/site-packages/mypy/nodes.py", line 2539, in accept
    return visitor.visit_type_alias(self)
  File "/usr/lib/python3.6/site-packages/mypy/fixup.py", line 135, in visit_type_alias
    a.target.accept(self.type_fixer)
  File "/usr/lib/python3.6/site-packages/mypy/types.py", line 511, in accept
    return visitor.visit_instance(self)
  File "/usr/lib/python3.6/site-packages/mypy/fixup.py", line 149, in visit_instance
    inst.type = lookup_qualified_typeinfo(self.modules, type_ref, self.quick_and_dirty)
  File "/usr/lib/python3.6/site-packages/mypy/fixup.py", line 234, in lookup_qualified_typeinfo
    node = lookup_qualified(modules, name, quick_and_dirty)
  File "/usr/lib/python3.6/site-packages/mypy/fixup.py", line 245, in lookup_qualified
    stnode = lookup_qualified_stnode(modules, name, quick_and_dirty)
  File "/usr/lib/python3.6/site-packages/mypy/fixup.py", line 259, in lookup_qualified_stnode
    assert '.' in head, "Cannot find %s" % (name,)
AssertionError: Cannot find collections.ChainMap

Local variables in innermost frame:
mod: None
tail: 'ChainMap'
rest: ['ChainMap']
head: 'collections'
quick_and_dirty: False
name: 'collections.ChainMap'
modules: {'rommelhp.wsgi': <mypy.nodes.MypyFile object at 0x7f092f76e318>, 'rommelhp': <mypy.nodes.MypyFile object at 0x7f092f76e5a0>, '_importlib_modulespec': <mypy.nodes.MypyFile object at 0x7f092f748480>, 'types': <mypy.nodes.MypyFile object at 0x7f092f698678>, 'abc': <mypy.nodes.MypyFile object at 0x7f092f68c1f8>, 'mypy_extensions': <mypy.nodes.MypyFile object at 0x7f092f698558>, 'typing': <mypy.nodes.MypyFile object at 0x7f092f587990>, 'sys': <mypy.nodes.MypyFile object at 0x7f092f5b5438>, 'builtins': <mypy.nodes.MypyFile object at 0x7f092f1c0af8>}