Mypy crashes with from .. import * import #4111
Description
In my example at #4110 , if I change the import in backends/Bla.py to from .. import * and remove references to blamodule., like so:
I have the following directory structure:
blamodule
|-- __init__.py
|-- backends
| |-- Bla.py
| `-- __init__.py
`-- call_command.py
With the following contents:
blamodule/__init__.py
from . import call_command
from . import backends
blamodule/backends/__init__.py
from .Bla import Bla
blamodule/backends/Bla.py
from .. import *
from typing import Iterable
class Bla:
def __init__(self, path: str) -> None:
self.path = path
def method(self, options: Iterable[str]) -> str:
return call_command.call(["BLA"])
blamodule/call_command.py
import io
def call() -> str:
output_buffer = io.StringIO()
return output_buffer.getvalue()
I crash mypy with the following backtrace:
Traceback (most recent call last):
File "/path/py3env/bin/mypy", line 11, in <module>
sys.exit(console_entry())
File "/path/py3env/lib/python3.5/site-packages/mypy/__main__.py", line 7, in console_entry
main(None)
File "/path/py3env/lib/python3.5/site-packages/mypy/main.py", line 50, in main
res = type_check_only(sources, bin_dir, options)
File "/path/py3env/lib/python3.5/site-packages/mypy/main.py", line 103, in type_check_only
options=options)
File "/path/py3env/lib/python3.5/site-packages/mypy/build.py", line 198, in build
graph = dispatch(sources, manager)
File "/path/py3env/lib/python3.5/site-packages/mypy/build.py", line 1833, in dispatch
graph = load_graph(sources, manager)
File "/path/py3env/lib/python3.5/site-packages/mypy/build.py", line 1946, in load_graph
caller_state=st, caller_line=st.dep_line_map.get(dep, 1))
File "/path/py3env/lib/python3.5/site-packages/mypy/build.py", line 1466, in __init__
self.parse_file()
File "/path/py3env/lib/python3.5/site-packages/mypy/build.py", line 1663, in parse_file
self.ignore_all or self.options.ignore_errors)
File "/usr/lib/python3.5/contextlib.py", line 77, in __exit__
self.gen.throw(type, value, traceback)
File "/path/py3env/lib/python3.5/site-packages/mypy/build.py", line 1554, in wrap_context
yield
File "/path/py3env/lib/python3.5/site-packages/mypy/build.py", line 1663, in parse_file
self.ignore_all or self.options.ignore_errors)
File "/path/py3env/lib/python3.5/site-packages/mypy/build.py", line 589, in parse_file
tree = parse(source, path, self.errors, options=self.options)
File "/path/py3env/lib/python3.5/site-packages/mypy/parse.py", line 25, in parse
options=options)
File "/path/py3env/lib/python3.5/site-packages/mypy/fastparse.py", line 96, in parse
).visit(ast)
File "/path/py3env/lib/python3.5/site-packages/mypy/fastparse.py", line 169, in visit
return super().visit(node)
File "/path/py3env/lib/python3.5/site-packages/typed_ast/ast3.py", line 275, in visit
return visitor(node)
File "/path/py3env/lib/python3.5/site-packages/mypy/fastparse.py", line 289, in visit_Module
body = self.fix_function_overloads(self.translate_stmt_list(mod.body))
File "/path/py3env/lib/python3.5/site-packages/mypy/fastparse.py", line 182, in translate_stmt_list
stmt = self.visit(e)
File "/path/py3env/lib/python3.5/site-packages/mypy/fastparse.py", line 169, in visit
return super().visit(node)
File "/path/py3env/lib/python3.5/site-packages/typed_ast/ast3.py", line 275, in visit
return visitor(node)
File "/path/py3env/lib/python3.5/site-packages/mypy/fastparse.py", line 126, in wrapper
node = f(self, ast)
File "/path/py3env/lib/python3.5/site-packages/mypy/fastparse.py", line 654, in visit_ImportFrom
assert n.module is not None
AssertionError: