Merge branch 'master' of github.com:zopefoundation/Btrees

Conflicts:
	CHANGES.rst
	setup.py

.travis.yml

@@ -10,25 +10,40 @@ matrix:
           python: 3.4
         - os: linux
           python: 3.5
+        - os: linux
+          python: 3.6
         - os: linux
           python: pypy
         - os: linux
-          python: pypy3
+          python: pypy3.3-5.2-alpha1
+        # It's important to use 'macpython' builds to get the least
+        # restrictive wheel tag. It's also important to avoid
+        # 'homebrew 3' because it floats instead of being a specific version.
         - os: osx
           language: generic
-          env: TERRYFY_PYTHON='homebrew 2'
+          env: TERRYFY_PYTHON='macpython 2.7'
         - os: osx
           language: generic
           env: TERRYFY_PYTHON='macpython 3.4'
         - os: osx
           language: generic
-          env: TERRYFY_PYTHON='homebrew 3'
+          env: TERRYFY_PYTHON='macpython 3.5'
+        - os: osx
+          language: generic
+          env: TERRYFY_PYTHON='macpython 3.6.0'
 before_install:
     - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then git clone https://github.com/MacPython/terryfy; fi
     - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then source terryfy/travis_tools.sh; fi
     - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then get_python_environment $TERRYFY_PYTHON venv; fi
     - if [[ "$TERRYFY_PYTHON" == "homebrew 3" ]]; then alias pip=`which pip3` ; fi
 install:
+    - pip install -U pip setuptools
+    # persistent is a setup_requires, which gets downloaded by
+    # setuptools, not pip. But macpython 3.6.0 setuptools has trouble with SSL on
+    # Travis CI
+    # (https://travis-ci.org/zopefoundation/BTrees/jobs/192340692) so
+    # we install with pip manually.
+    - pip install -U persistent
     - pip install -e .[ZODB]
 script:
     - python setup.py -q test -q
@@ -48,3 +63,5 @@ after_success:
 env:
     global:
         secure: "Oh5gRJ+Fo8ZNmCkdrffpx201EPyTr9iUXmv6VqJMTebrzQpFdSWUVcANRmAzyfdyk3Wo0IjifVfWsKc+hvtbFmXZiLRFyEgoCUmzeWVumjebg2xxm0PbFHcRQgl4daBXxB0iqWkP8wXZ3daytuL74sYcbHizMYyhc7AxFbANsZc="
+
+cache: pip

BTrees/BTreeModuleTemplate.c

@@ -558,8 +558,18 @@ module_init(void)
     cPersistenceCAPI = (cPersistenceCAPIstruct *)PyCObject_Import(
                 "persistent.cPersistence", "CAPI");
 #endif
-    if (cPersistenceCAPI == NULL)
+    if (cPersistenceCAPI == NULL) {
+       /* The Capsule API attempts to import 'persistent' and then
+        * walk down to the specified attribute using getattr. If the C
+        * extensions aren't available, this can result in an
+        * AttributeError being raised. Let that percolate up as an
+        * ImportError so it can be caught in the expected way.
+        */
+       if (PyErr_Occurred() && !PyErr_ExceptionMatches(PyExc_ImportError)) {
+           PyErr_SetString(PyExc_ImportError, "persistent C extension unavailable");
+       }
         return NULL;
+   }
 
 #ifdef PY3K
 #define _SET_TYPE(typ) ((PyObject*)(&typ))->ob_type = &PyType_Type

CHANGES.rst

 ``BTrees`` Changelog
 ====================
 
+4.4.2 (unreleased)
+------------------
+
+- Add support for Python 3.6.
+- Raise an ``ImportError`` consistently on Python 3 if the C extension for
+  BTrees is used but the ``persistent`` C extension is not available.
+  Previously this could result in an odd ``AttributeError``. See
+  https://github.com/zopefoundation/BTrees/pull/55
+
 4.4.1 (2017-01-24)
 ------------------
 

appveyor.yml

 environment:
-  password:
-    secure: CZWv3s2DBRU90N7aCoOKtw==
+  global:
+    TWINE_USERNAME: zope.wheelbuilder
+    TWINE_PASSWORD:
+      secure: UcdTh6W78cRLVGfKRFoa5A==
 
   matrix:
-    - python : 27
-    - python : 27-x64
-    - python : 33
-    - python : 33-x64
-    - python : 34
-    - python : 34-x64
-    - python : 35	
-    - python : 35-x64
+    - python: 27
+    - python: 27-x64
+    - python: 33
+    - python: 33-x64
+    - python: 34
+    - python: 34-x64
+    - python: 35
+    - python: 35-x64
+    - python: 36
+    - python: 36-x64
 
 install:
   - "SET PATH=C:\\Python%PYTHON%;c:\\Python%PYTHON%\\scripts;%PATH%"
   - echo "C:\Program Files\Microsoft SDKs\Windows\v7.1\Bin\SetEnv.cmd" /x64 > "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\amd64\vcvars64.bat"
-  - pip install -e .[ZODB] 
+  - pip install -e .[ZODB]
 
-build: false
+build_script:
+  - pip install wheel
+  - python -W ignore setup.py -q bdist_wheel
 
 test_script:
   - python setup.py -q test -q
 
-on_success:
-  - echo Build succesful!
+artifacts:
+  - path: 'dist\*.whl'
+    name: wheel
 
 deploy_script:
-  - echo [distutils]                                  > %USERPROFILE%\\.pypirc
-  - echo index-servers =                             >> %USERPROFILE%\\.pypirc
-  - echo     pypi                                    >> %USERPROFILE%\\.pypirc
-  - echo [pypi]                                      >> %USERPROFILE%\\.pypirc
-  - echo repository=https://pypi.python.org/pypi     >> %USERPROFILE%\\.pypirc
-  - echo username=zope.wheelbuilder                  >> %USERPROFILE%\\.pypirc
-  - echo password=%password%                         >> %USERPROFILE%\\.pypirc
-  - set HOME=%USERPROFILE%
-  - pip install wheel twine
-  - ps: if($env:APPVEYOR_REPO_TAG -eq $TRUE) { python -W ignore setup.py bdist_wheel; twine upload dist/* }
+  - ps: if ($env:APPVEYOR_REPO_TAG -eq $TRUE) { pip install twine; twine upload dist/* }
 
-deploy : on
+deploy: on

setup.py

@@ -65,7 +65,7 @@ base_btrees_depends = [
     ]
 
 FLAVORS = {"O": "object", "I": "int", "F": "float", 'L': 'int'}
-#XXX should 'fs' be in ZODB instead?
+# XXX should 'fs' be in ZODB instead?
 FAMILIES = ("OO", "IO", "OI", "II", "IF", "fs", "LO", "OL", "LL", "LF")
 
 KEY_H = "BTrees/%skeymacros.h"
@@ -127,6 +127,7 @@ setup(name='BTrees',
         'Programming Language :: Python :: 3.3',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
+        'Programming Language :: Python :: 3.6',
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",
         "Framework :: ZODB",
@@ -143,9 +144,9 @@ setup(name='BTrees',
       packages=find_packages(),
       include_package_data=True,
       zip_safe=False,
-      ext_modules = ext_modules,
+      ext_modules=ext_modules,
       setup_requires=['persistent'],
-      extras_require = {
+      extras_require={
         'test': TESTS_REQUIRE,
         'ZODB': ['ZODB'],
         'testing': TESTS_REQUIRE + ['nose', 'coverage'],
@@ -154,6 +155,6 @@ setup(name='BTrees',
       test_suite="BTrees.tests",
       tests_require=TESTS_REQUIRE,
       install_requires=REQUIRES,
-      entry_points = """\
+      entry_points="""\
       """
-     )
+      )

tox.ini

@@ -3,7 +3,7 @@ envlist =
 # Jython support pending 2.7 support, due 2012-07-15 or so.  See:
 # http://fwierzbicki.blogspot.com/2012/03/adconion-to-fund-jython-27.html
 #   py27,jython,pypy,coverage,docs
-    py27,py27-pure,pypy,py33,py34,py35,py35-pure,pypy3,w_zodb,coverage,docs
+    py27,py27-pure,pypy,py33,py34,py35,py35-pure,py36,pypy3,w_zodb,coverage,docs
 
 [testenv]
 deps =