Sum and multiply

.gitignore

@@ -13,3 +13,4 @@ astroid.egg-info/
 .cache/
 .eggs/
 .pytest_cache/
+.mypy_cache/

.travis.yml

@@ -19,6 +19,8 @@ jobs:
     env: TOXENV=py37
   - python: 3.8
     env: TOXENV=py38
+  - python: 3.9
+    env: TOXENV=py39
 before_install:
 - python --version
 - uname -a

ChangeLog

@@ -2,19 +2,80 @@
 astroid's ChangeLog
 ===================
 
+* The ``context.path`` is now a ``dict`` and the ``context.push`` method
+  returns ``True`` if the node has been visited a certain amount of times.
+
+  Close #669
 
 What's New in astroid 2.5.0?
 ============================
 Release Date: TBA
+* Adds a brain for type object so that it is possible to write `type[int]` in annotation.
+
+  Fixes PyCQA/pylint#4001
+
+* Add ``__class_getitem__`` method to ``subprocess.Popen`` brain under Python 3.9 so that it is seen as subscriptable by pylint.
+
+  Fixes PyCQA/pylint#4034
+
+* Adds `degrees`, `radians`, which are `numpy ufunc` functions, in the `numpy` brain. Adds `random` function in the `numpy.random` brain.
+
+  Fixes PyCQA/pylint#3856
+
+* Fix deprecated importlib methods
+
+  Closes #703
+
+* Fix a crash in inference caused by `Uninferable` container elements
+
+  Close #866
+
+* Add `python 3.9` support.
+
+* The flat attribute of ``numpy.ndarray`` is now inferred as an ``numpy.ndarray`` itself.
+  It should be a ``numpy.flatiter`` instance, but this class is not yet available in the numpy brain.
+
+  Fixes PyCQA/pylint#3640
+
+* Fix a bug for dunder methods inference of function objects
+
+  Fixes #819
+
+* Fixes a bug in the signature of the ``ndarray.__or__`` method,
+  in the ``brain_numpy_ndarray.py`` module.
+
+  Fixes #815
+
+* Fixes a to-list cast bug in ``starred_assigned_stmts`` method,
+  in the ``protocols.py` module.
+
+* Added a brain for ``hypothesis.strategies.composite``
+
+* The transpose of a ``numpy.ndarray`` is also a ``numpy.ndarray``
+
+  Fixes PyCQA/pylint#3387
 
 * Added a brain for ``sqlalchemy.orm.session``
 
+* Separate string and bytes classes patching
+
+  Fixes PyCQA/pylint#3599
+
+* Prevent recursion error for self referential length calls
+
+  Close #777
+
 * Added missing methods to the brain for ``mechanize``, to fix pylint false positives
 
   Close #793
 
 * Added more supported parameters to ``subprocess.check_output``
 
+* Fix recursion errors with pandas
+
+  Fixes PyCQA/pylint#2843
+  Fixes PyCQA/pylint#2811
+
 * Added exception inference for `UnicodeDecodeError`
 
   Close PyCQA/pylint#3639
@@ -23,15 +84,37 @@ Release Date: TBA
 
   Close PyCQA/pylint#3583
 
+* Fixed exception-chaining error messages.
 
-What's New in astroid 2.4.3?
-============================
-Release Date: TBA
+* Fix failure to infer base class type with multiple inheritance and qualified names
+
+  Fixes #843
+
+* Reduce memory usage of astroid's module cache.
+
+* Remove dependency on `imp`.
+
+  Close #594
+  Close #681
+
+* Do not crash when encountering starred assignments in enums.
+
+  Close #835
+
+* Fix a crash in functools.partial inference when the arguments cannot be determined
+
+  Close PyCQA/pylint#3776
 
 * Fix a crash caused by a lookup of a monkey-patched method
 
   Close PyCQA/pylint#3686
 
+* ``is_generator`` correctly considers `Yield` nodes in `AugAssign` nodes
+
+  This fixes a false positive with the `assignment-from-no-return` pylint check.
+
+  Close PyCQA/pylint#3904
+
 
 What's New in astroid 2.4.2?
 ============================

appveyor.yml

@@ -13,6 +13,9 @@ environment:
     - PYTHON: "C:\\Python37"
       TOXENV: "py37"
 
+    - PYTHON: "C:\\Python38"
+      TOXENV: "py38"
+
 init:
   - ps: echo $env:TOXENV
   - ps: ls C:\Python*

astroid/__init__.py

@@ -1,7 +1,7 @@
 # Copyright (c) 2006-2013, 2015 LOGILAB S.A. (Paris, FRANCE) <[email protected]>
 # Copyright (c) 2014 Google, Inc.
 # Copyright (c) 2014 Eevee (Alex Munroe) <[email protected]>
-# Copyright (c) 2015-2016, 2018 Claudiu Popa <[email protected]>
+# Copyright (c) 2015-2016, 2018, 2020 Claudiu Popa <[email protected]>
 # Copyright (c) 2015-2016 Ceridwen <[email protected]>
 # Copyright (c) 2016 Derek Gustafson <[email protected]>
 # Copyright (c) 2016 Moises Lopez <[email protected]>

astroid/__pkginfo__.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 # Copyright (c) 2006-2014 LOGILAB S.A. (Paris, FRANCE) <[email protected]>
-# Copyright (c) 2014-2019 Claudiu Popa <[email protected]>
+# Copyright (c) 2014-2020 Claudiu Popa <[email protected]>
 # Copyright (c) 2014 Google, Inc.
 # Copyright (c) 2015-2017 Ceridwen <[email protected]>
 # Copyright (c) 2015 Florian Bruhin <[email protected]>
@@ -14,6 +14,8 @@
 # Copyright (c) 2018 Bryce Guinta <[email protected]>
 # Copyright (c) 2019 Uilian Ries <[email protected]>
 # Copyright (c) 2019 Thomas Hisch <[email protected]>
+# Copyright (c) 2020 Konrad Weihmann <[email protected]>
+# Copyright (c) 2020 Felix Mölder <[email protected]>
 # Copyright (c) 2020 Michael <[email protected]>
 
 # Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
@@ -26,9 +28,9 @@
 
 extras_require = {}
 install_requires = [
-    "lazy_object_proxy==1.4.*",
+    "lazy_object_proxy>=1.4.0",
     "six~=1.12",
-    "wrapt~=1.11",
+    "wrapt>=1.11,<1.13",
     'typed-ast>=1.4.0,<1.5;implementation_name== "cpython" and python_version<"3.8"',
 ]
 
@@ -51,6 +53,7 @@
     "Programming Language :: Python :: 3.6",
     "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
 ]

astroid/arguments.py

@@ -3,6 +3,7 @@
 # Copyright (c) 2018 Bryce Guinta <[email protected]>
 # Copyright (c) 2018 Nick Drozd <[email protected]>
 # Copyright (c) 2018 Anthony Sottile <[email protected]>
+# Copyright (c) 2020 hippo91 <[email protected]>
 
 # Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
 # For details: https://github.com/PyCQA/astroid/blob/master/COPYING.LESSER
@@ -173,7 +174,7 @@ def infer_argument(self, funcnode, name, context):
 
         # Too many arguments given and no variable arguments.
         if len(self.positional_arguments) > len(funcnode.args.args):
-            if not funcnode.args.vararg:
+            if not funcnode.args.vararg and not funcnode.args.posonlyargs:
                 raise exceptions.InferenceError(
                     "Too many positional arguments "
                     "passed to {func!r} that does "
@@ -292,7 +293,7 @@ def infer_argument(self, funcnode, name, context):
         except exceptions.NoDefault:
             pass
         raise exceptions.InferenceError(
-            "No value found for argument {name} to " "{func!r}",
+            "No value found for argument {arg} to {func!r}",
             call_site=self,
             func=funcnode,
             arg=name,