comparison tests/test-module-imports.t @ 26964:5abba2c92da3

import-checker: allow import of child modules from package root

I got the following error by rewriting hgweb/__init__.py to use
absolute_import, which is obviously wrong:

  Import cycle: mercurial.hgweb.__init__ -> mercurial.hgweb.__init__

"from foo import bar" should not make a cycle if "foo" is a package and
if "bar" is a module or a package. On the other hand, it should be detected
as a cycle if "bar" is a non-module name. Both cases are doc-tested already,
so this patch does not add new doctest.

26963:de5ae97ce9f4

  > from __future__ import absolute_import
  > from . import foo
  > from .. import parent
  > EOF

  $ cat > testpackage/sortedentries.py << EOF
  > from __future__ import absolute_import
  > from . import (
  >     foo,
  >     bar,

26964:5abba2c92da3

  > from __future__ import absolute_import
  > from . import foo
  > from .. import parent
  > EOF

  $ touch testpackage/subpackage/foo.py
  $ cat > testpackage/subpackage/__init__.py << EOF
  > from __future__ import absolute_import
  > from . import levelpriority  # should not cause cycle
  > EOF

  $ cat > testpackage/sortedentries.py << EOF
  > from __future__ import absolute_import
  > from . import (
  >     foo,
  >     bar,