Update supported Python versions; use native ns packages.

.coveragerc

@@ -1,8 +1,25 @@
 [run]
-source = nti.traversal
+source_pkgs = nti.traversal
+relative_files = True
+
 
 [report]
+# Coverage is run on Linux under cPython 2 and 3,
+# exclude branches that are windows, pypy
+# specific
 exclude_lines =
     pragma: no cover
+    def __repr__
+    raise AssertionError
     raise NotImplementedError
     if __name__ == .__main__.:
+    if PYPY:
+    if sys.platform == 'win32':
+    if mswindows:
+    if is_windows:
+fail_under = 99.0
+precision = 2
+
+# Local Variables:
+# mode: conf
+# End:

.github/dependabot.yml

@@ -0,0 +1,13 @@
+# Keep GitHub Actions up to date with GitHub's Dependabot...
+# https://docs.github.com/en/code-security/dependabot/working-with-dependabot/keeping-your-actions-up-to-date-with-dependabot
+# https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file#package-ecosystem
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    groups:
+      github-actions:
+        patterns:
+          - "*"  # Group all Actions updates into a single larger pull request
+    schedule:
+      interval: monthly

.github/workflows/tests.yml

@@ -0,0 +1,62 @@
+name: tests
+
+on: [push, pull_request]
+
+env:
+  PYTHONHASHSEED: 1042466059
+  ZOPE_INTERFACE_STRICT_IRO: 1
+
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        python-version:
+          - "pypy-3.10"
+          - "3.11"
+          - "3.12"
+          - "3.13"
+        extras:
+          - "[test,docs]"
+        # include:
+        #   - python-version: "3.13"
+        #     extras: "[test,docs,gevent,pyramid]"
+
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+        cache: 'pip'
+        cache-dependency-path: 'setup.py'
+    - name: Install dependencies
+      run: |
+        python -m pip install -U pip setuptools wheel
+        python -m pip install -U coverage
+        python -m pip install -v -U -e ".${{ matrix.extras }}"
+    - name: Test
+      run: |
+        python -m coverage run -m zope.testrunner --test-path=src  --auto-color --auto-progress
+        coverage run -a -m sphinx -b doctest -d docs/_build/doctrees docs docs/_build/doctests
+        coverage combine || true
+        coverage report -i || true
+    - name: Lint
+      if: matrix.python-version == '3.12'
+      run: |
+        python -m pip install -U pylint
+        pylint nti.site
+    - name: Submit to Coveralls
+      uses: coverallsapp/github-action@v2
+      with:
+        parallel: true
+
+  coveralls_finish:
+    needs: test
+    runs-on: ubuntu-latest
+    steps:
+    - name: Coveralls Finished
+      uses: coverallsapp/github-action@v2
+      with:
+        parallel-finished: true

.pylintrc

@@ -1,3 +1,72 @@
+[MASTER]
+load-plugins=pylint.extensions.bad_builtin,
+   pylint.extensions.check_elif,
+   pylint.extensions.code_style,
+   pylint.extensions.dict_init_mutate,
+   pylint.extensions.docstyle,
+   pylint.extensions.dunder,
+   pylint.extensions.comparison_placement,
+   pylint.extensions.confusing_elif,
+   pylint.extensions.for_any_all,
+   pylint.extensions.consider_refactoring_into_while_condition,
+   pylint.extensions.mccabe,
+   pylint.extensions.eq_without_hash,
+   pylint.extensions.redefined_variable_type,
+   pylint.extensions.overlapping_exceptions,
+   pylint.extensions.docparams,
+   pylint.extensions.private_import,
+   pylint.extensions.set_membership,
+   pylint.extensions.typing,
+
+# magic_value wants you to not use arbitrary strings and numbers
+# inline in the code. But it's overzealous and has way too many false
+# positives. Trust people to do the most readable thing.
+#   pylint.extensions.magic_value
+
+# Empty comment would be good, except it detects blank lines within
+# a single comment block.
+#
+# Those are often used to separate paragraphs, like here.
+#   pylint.extensions.empty_comment,
+
+# consider_ternary_expression is a nice check, but is also overzealous.
+# Trust the human to do the readable thing.
+#    pylint.extensions.consider_ternary_expression,
+
+# redefined_loop_name tends to catch us with things like
+# for name in (a, b, c): name = name + '_column' ...
+#    pylint.extensions.redefined_loop_name,
+
+# This wants you to turn ``x in (1, 2)`` into ``x in {1, 2}``.
+# They both result in the LOAD_CONST bytecode, one a tuple one a
+# frozenset. In theory a set lookup using hashing is faster than
+# a linear scan of a tuple; but if the tuple is small, it can often
+# actually be faster to scan the tuple.
+#   pylint.extensions.set_membership,
+
+# Fix zope.cachedescriptors.property.Lazy; the property-classes doesn't seem to
+# do anything.
+# https://stackoverflow.com/questions/51160955/pylint-how-to-specify-a-self-defined-property-decorator-with-property-classes
+# For releases prior to 2.14.2, this needs to be a one-line, quoted string. After that,
+# a multi-line string.
+# - Make zope.cachedescriptors.property.Lazy look like a property;
+#   fixes pylint thinking it is a method.
+# - Run in Pure Python mode (ignore C extensions that respect this);
+#   fixes some issues with zope.interface, like IFoo.providedby(ob)
+#   claiming not to have the right number of parameters...except no, it does not.
+init-hook =
+    import astroid.bases
+    astroid.bases.POSSIBLE_PROPERTIES.add('Lazy')
+    astroid.bases.POSSIBLE_PROPERTIES.add('LazyOnClass')
+    astroid.bases.POSSIBLE_PROPERTIES.add('readproperty')
+    astroid.bases.POSSIBLE_PROPERTIES.add('non_overridable')
+    import os
+    os.environ['PURE_PYTHON'] = ("1")
+    # Ending on a quoted string
+    # breaks pylint 2.14.5 (it strips the trailing quote. This is
+    # probably because it tries to handle one-line quoted strings as well as multi-blocks).
+    # The parens around it fix the issue.
+
 
 [MESSAGES CONTROL]
 
@@ -11,14 +80,15 @@
 # mixing)
 
 
-# invalid-name, ; Most commonly for `logger`, which it wants to be LOGGER
+# invalid-name, ; We get lots of these, especially in scripts. should fix many of them
 # protected-access, ; We have many cases of this; legit ones need to be examinid and commented, then this removed
 # no-self-use, ; common in superclasses with extension points
 # too-few-public-methods, ; Exception and marker classes get tagged with this
 # exec-used, ; should tag individual instances with this, there are some but not too many
 # global-statement,     ; should tag individual instances
 # multiple-statements, ; "from gevent import monkey; monkey.patch_all()"
 # locally-disabled, ; yes, we know we're doing this. don't replace one warning with another
+# cyclic-import, ; most of these are deferred imports
 # too-many-arguments, ; these are almost always because that's what the stdlib does
 # redefined-builtin, ; likewise: these tend to be keyword arguments like len= in the stdlib
 # undefined-all-variable,     ; XXX: This crashes with pylint 1.5.4 on Travis (but not locally on Py2/3
@@ -27,70 +97,123 @@
 #   see https://github.com/PyCQA/pylint/issues/846
 # useless-suppression: the only way to avoid repeating it for specific statements everywhere that we
 #   do Py2/Py3 stuff is to put it here. Sadly this means that we might get better but not realize it.
-# too-many-ancestors: inheriting from Zope objects gets that.
-# assignment-from-no-return: Interfaces do this in Python 3.
-disable=missing-docstring,
+# duplicate-code: Yeah, the compatibility ssl modules are much the same
+# In pylint 1.8.0, inconsistent-return-statements are created for the wrong reasons.
+# This code raises it, even though there is only one return (the implicit ``return None`` is presumably
+# what triggers it):
+#  def foo():
+#    if baz:
+#      return 1
+# In Pylint 2dev1, needed for Python 3.7, we get spurious "useless return" errors:
+# @property
+# def foo(self):
+#   return None # generates useless-return
+# Pylint 2.4 adds import-outside-toplevel. But we do that a lot to defer imports because of patching.
+# Pylint 2.4 adds self-assigning-variable. But we do *that* to avoid unused-import when we
+# "export" the variable and dont have a __all__.
+# Pylint 2.6+ adds some python-3-only things that dont apply: raise-missing-from, super-with-arguments, consider-using-f-string, redundant-u-string-prefix
+# cyclic import is added because it pylint is spuriously detecting that
+# consider-using-assignment-expr wants you to transform things like:
+#   foo = get_foo()
+#   if foo: ...
+#
+# Into ``if (foo := get_foo()):``
+# But there are a *lot* of those. Trust people to do the right, most
+# readable, thing
+#
+# docstring-first-line-empty: That's actually our standard, based on Django.
+# XXX: unclear on the docstring warnings, missing-type-doc, missing-param-doc,
+# differing-param-doc, differing-type-doc (are the last two replacements for the first two?)
+#
+# They should be addressed, in general they are a good thing, but sometimes they are
+# unnecessary.
+disable=wrong-import-position,
+    wrong-import-order,
+    missing-docstring,
+    ungrouped-imports,
     invalid-name,
-    protected-access,
-    no-self-use,
     too-few-public-methods,
-    exec-used,
     global-statement,
-    multiple-statements,
     locally-disabled,
     too-many-arguments,
     useless-suppression,
+    duplicate-code,
     useless-object-inheritance,
-    too-many-ancestors,
-    ungrouped-imports,
-    assignment-from-no-return
-#	undefined-all-variable
-
+    import-outside-toplevel,
+    self-assigning-variable,
+    consider-using-f-string,
+    consider-using-assignment-expr,
+    use-dict-literal,
+    missing-type-doc,
+    missing-param-doc,
+    differing-param-doc,
+    differing-type-doc,
+    compare-to-zero,
+    docstring-first-line-empty,
+
+enable=consider-using-augmented-assign
 
 [FORMAT]
-# duplicated from setup.cfg
-max-line-length=160
+max-line-length=100
+max-module-lines=1100
 
 [MISCELLANEOUS]
 # List of note tags to take in consideration, separated by a comma.
 #notes=FIXME,XXX,TODO
-# Disable that, we don't want them in the report (???)
+# Disable that, we don't want them to fail the lint CI job.
 notes=
 
 [VARIABLES]
 
 dummy-variables-rgx=_.*
+init-import=true
 
 [TYPECHECK]
 
 # List of members which are set dynamically and missed by pylint inference
-# system, and so shouldn't trigger E1101 when accessed. Python regular
+# system, and so shouldnt trigger E1101 when accessed. Python regular
 # expressions are accepted.
-# gevent: this is helpful for py3/py2 code.
-generated-members=exc_clear
+generated-members=REQUEST,acl_users,aq_parent,providedBy
+
+
+# Tells whether missing members accessed in mixin class should be ignored. A
+# mixin class is detected if its name ends with "mixin" (case insensitive).
+# XXX: deprecated in 2.14; replaced with ignored-checks-for-mixins.
+# The defaults for that value seem to be what we want
+#ignore-mixin-members=yes
 
 # List of classes names for which member attributes should not be checked
-# (useful for classes with attributes dynamically set). This supports can work
+# (useful for classes with attributes dynamically set). This can work
 # with qualified names.
-# greenlet, Greenlet, parent, dead: all attempts to fix issues in greenlet.py
-# only seen on the service, e.g., self.parent.loop: class parent has no loop
-# ignored-classes=SSLContext, SSLSocket, greenlet, Greenlet, parent, dead
+#ignored-classes=SSLContext, SSLSocket, greenlet, Greenlet, parent, dead
+
 
 # List of module names for which member attributes should not be checked
 # (useful for modules/projects where namespaces are manipulated during runtime
 # and thus existing member attributes cannot be deduced by static analysis. It
 # supports qualified module names, as well as Unix pattern matching.
-# ignored-modules=gevent._corecffi
+#ignored-modules=gevent._corecffi,gevent.os,os,greenlet,threading,gevent.libev.corecffi,gevent.socket,gevent.core,gevent.testing.support
+ignored-modules=psycopg2.errors
 
 [DESIGN]
 max-attributes=12
+max-parents=10
+# Bump complexity up one.
+max-complexity=11
 
 [BASIC]
-bad-functions=input
 # Prospector turns ot unsafe-load-any-extension by default, but
 # pylint leaves it off. This is the proximal cause of the
 # undefined-all-variable crash.
 unsafe-load-any-extension = yes
+# This does not seem to work, hence the init-hook
+property-classes=zope.cachedescriptors.property.Lazy,zope.cachedescriptors.property.Cached
+
+[CLASSES]
+# List of interface methods to ignore, separated by a comma. This is used for
+# instance to not check methods defines in Zope's Interface base class.
+
+
 
 # Local Variables:
 # mode: conf

CHANGES.rst

@@ -3,10 +3,11 @@
 =========
 
 
-0.0.2 (unreleased)
+1.0.0 (unreleased)
 ==================
 
-- Nothing changed yet.
+- Drop support for Python < 3.10.
+- Use native namespace packages.
 
 
 0.0.1 (2020-01-02)

pyproject.toml

@@ -0,0 +1,5 @@
+[build-system]
+requires = [
+   "wheel",
+   "setuptools",
+]