Added support for Python 3.7

Details:

- Added Python 3.7 to setup.cfg, .travis.yml, and appveyor.xml.
  In .travis.yml, specified distro: xenial for Python 3.7, because of Travis
  issue #9069 (travis-ci/travis-ci#9069).
  In .travis.yml, now running py34 latest and py37 minimum.

- Changed Python version support statement in docs/intro.rst to
  "... 3.4, and higher", to avoid a long list of Python 3.x versions.

- Added support to CIMInt (superclass of Uint32, etc.) to accept
  a keyword argument named 'x' for the value, and to pass it
  on as a positional argument. Reason is that Python 3.7 removed
  support for passing the value to int() as a keyword argument
  named 'x'.

- Fixed test case "Dict from keyword args" in `test_NocaseDict_init()`
  to expect a UserWarning only before Python 3.7. Fixed the version
  that is mentioned in the message of the UserWarning in
  `NocaseDict.__init__()`, and made the check there consistent with
  the message.

- Increased minimum version of the `PyYAML` package from 3.12 to 3.13,
  in order to pick up its Python 3.7 support. That version also declares
  3.7 as supported on Pypi. For details, see PyYAML issue #126
  (yaml/pyyaml#126).

- Increased minimum version of the `lxml` package from 4.0.0 to 4.2.4,
  in order to pick up its Python 3.7 support.
  Starting with 4.2.0, lxml declares 3.7 as supported on Pypi, but we
  need 4.2.4 in order to fix an issue with missing libxml2 on Windows.

- Increased minimum version of the `pyzmq` package from 16.0.2 to 16.0.4,
  in order to pick up its Python 3.7 support. Note that while 16.0.4
  works for us, only 17.0.0 declares Python 3.6(!) support on Pypi,
  and Python 3.7 support is not officially declared on Pypi yet for this
  package.

- Increased minimum version of the `httpretty` package from 0.8.14 to 0.9.5
  in order to pick up its Python 3.7 support, but only for Python > 2.6.
  The 0.9.5 version also declares 3.7 as supported on Pypi.
  For Python == 2.6, the minimum httpretty version remains 0.8.14 because
  starting with 0.9, httpretty removed Python 2.6 support.i

Signed-off-by: Andreas Maier <andreas.r.maier@gmx.de>

.travis.yml

@@ -50,16 +50,16 @@ matrix:
       python: "2.7"
       env:
         - PACKAGE_LEVEL=latest
-    - os: linux
-      language: python
-      python: "3.4"
-      env:
-        - PACKAGE_LEVEL=minimum
 #    - os: linux
 #      language: python
 #      python: "3.4"
 #      env:
-#        - PACKAGE_LEVEL=latest
+#        - PACKAGE_LEVEL=minimum
+    - os: linux
+      language: python
+      python: "3.4"
+      env:
+        - PACKAGE_LEVEL=latest
 #    - os: linux
 #      language: python
 #      python: "3.5"
@@ -75,11 +75,23 @@ matrix:
 #      python: "3.6"
 #      env:
 #        - PACKAGE_LEVEL=minimum
+#    - os: linux
+#      language: python
+#      python: "3.6"
+#      env:
+#        - PACKAGE_LEVEL=latest
     - os: linux
       language: python
-      python: "3.6"
+      python: "3.7"
+      dist: xenial
       env:
-        - PACKAGE_LEVEL=latest
+        - PACKAGE_LEVEL=minimum
+#    - os: linux
+#      language: python
+#      python: "3.7"
+#      dist: xenial
+#      env:
+#        - PACKAGE_LEVEL=latest
 # Note: pywbem does not install on pypy, because M2Crypto does not install.
 #    - os: linux
 #      language: python

PKG-INFO

@@ -1,6 +1,6 @@
 Metadata-Version: 1.2
 Name: pywbem
-Version: 0.12.1.dev59
+Version: 0.12.1.dev70
 Summary: pywbem - A WBEM client
 Home-page: http://pywbem.github.io/pywbem/
 Author: Tim Potter
@@ -44,5 +44,6 @@ Classifier: Programming Language :: Python :: 3
 Classifier: Programming Language :: Python :: 3.4
 Classifier: Programming Language :: Python :: 3.5
 Classifier: Programming Language :: Python :: 3.6
+Classifier: Programming Language :: Python :: 3.7
 Classifier: Topic :: Software Development :: Libraries :: Python Modules
 Classifier: Topic :: System :: Systems Administration

appveyor.yml

@@ -26,9 +26,15 @@ environment:
 #    - PYTHON_VERSION: 3.6
 #      PYTHON_ARCH: 32
 #      PYTHON_HOME: C:\Python36
-    - PYTHON_VERSION: 3.6
+#    - PYTHON_VERSION: 3.6
+#      PYTHON_ARCH: 64
+#      PYTHON_HOME: C:\Python36-x64
+#    - PYTHON_VERSION: 3.7
+#      PYTHON_ARCH: 32
+#      PYTHON_HOME: C:\Python37
+    - PYTHON_VERSION: 3.7
       PYTHON_ARCH: 64
-      PYTHON_HOME: C:\Python36-x64
+      PYTHON_HOME: C:\Python37-x64
 
 configuration:
 # These values will become the values of the PACKAGE_LEVEL env.var.

dev-requirements.txt

@@ -16,8 +16,8 @@ pytest>=3.3.0; python_version > '2.6'
 # testfixtures 6.0.0 no longer supports py26 and fails on py26 with syntax error
 testfixtures>=4.3.3,<6.0.0
 httpretty>=0.8.14,<0.9.1; python_version == '2.6'
-httpretty>=0.8.14; python_version > '2.6'
-lxml>=4.0.0
+httpretty>=0.9.5; python_version > '2.6'
+lxml>=4.2.4
 requests>=2.12.4
 decorator>=4.0.11
 yamlordereddictloader>=0.4.0

docs/changes.rst

@@ -238,6 +238,8 @@ This version contains all fixes up to pywbem 0.12.4.
   according to DSP0004, return equal WBEM URI strings.
   See issue #1323.
 
+* Added support for Python 3.7, which was released 2018-06-27.
+
 **Cleanup:**
 
 * Added connection information to all pywbem exceptions. This is done via a
@@ -266,6 +268,10 @@ This version contains all fixes up to pywbem 0.12.4.
   CIM_Namespace, CIM_ObjectManager existing in the mocked server. See issue
   #1250
 
+* Needed to upgrade PyYAML version from >=3.12 to >=3.13 due to an issue
+  in PyYAML on Python 3.7, that was fixed in PyYAML 3.13.
+  See issue #1337.
+
 **Known issues:**
 
 * See `list of open issues`_.

docs/intro.rst

@@ -98,7 +98,7 @@ Pywbem is supported in these environments:
 * Operating Systems: Linux, Windows (native, and with UNIX-like environments),
   OS-X
 
-* Python: 2.6, 2.7, 3.4, 3.5, 3.6 and higher
+* Python: 2.6, 2.7, 3.4, and higher
 
 * WBEM servers: Any WBEM server that conforms to the DMTF specifications listed
   in :ref:`Standards conformance`. WBEM servers supporting older versions of

minimum-constraints.txt

@@ -47,7 +47,7 @@ wheel===0.29.0
 pbr===1.10.0
 six===1.10.0
 ply===3.10
-PyYAML===3.12
+PyYAML===3.13
 M2Crypto===0.30.1
 ordereddict===1.1
 
@@ -63,8 +63,9 @@ pytest===3.0.7; python_version == '2.6'
 pytest===3.3.0; python_version > '2.6'
 testfixtures===4.3.3
 mock===2.0.0
-httpretty===0.8.14
-lxml===4.0.0
+httpretty===0.8.14; python_version == '2.6'
+httpretty===0.9.5; python_version > '2.6'
+lxml===4.2.4
 requests===2.12.4
 decorator===4.0.11
 yamlordereddictloader===0.4.0
@@ -148,7 +149,7 @@ py===1.4.32; python_version == '2.6'
 py===1.5.1; python_version > '2.6'
 Pygments===2.1.3
 pytz===2016.10
-pyzmq===16.0.2
+pyzmq===16.0.4
 qtconsole===4.2.1
 requests===2.12.4
 requests-toolbelt===0.7.0

pywbem/_nocasedict.py

@@ -186,9 +186,9 @@ def __init__(self, *args, **kwargs):
                 "%s (1 allowed)" % len(args))
 
         # Step 2: Add any keyword arguments
-        if len(kwargs) > 1 and sys.version_info[0:2] <= (3, 6):
+        if len(kwargs) > 1 and sys.version_info[0:2] < (3, 7):
             warnings.warn("Initializing a pywbem.NocaseDict object from "
-                          "keyword arguments before Python 3.6 will not "
+                          "keyword arguments before Python 3.7 will not "
                           "preserve order of items",
                           UserWarning,
                           stacklevel=_stacklevel_above_module(__name__))

pywbem/cim_types.py

@@ -626,6 +626,16 @@ class (e.g. :class:`~pywbem.Uint8`) is created. Values outside of the
     maxvalue = None
 
     def __new__(cls, *args, **kwargs):
+
+        # Python 3.7 removed support for passing the value for int() as a
+        # keyword argument named 'x'. It now needs to be passed as a positional
+        # argument. The testclient test case definitions rely on a keyword
+        # argument, so we now transform the keyword arg into a positional
+        # arg.
+        if 'x' in kwargs:
+            args = list(*args)  # args is passed as a tuple
+            args.append(kwargs.pop('x'))
+
         value = _Longint(*args, **kwargs)
         if ENFORCE_INTEGER_RANGE:
             if value > cls.maxvalue or value < cls.minvalue:

requirements.txt

@@ -12,7 +12,7 @@
 pbr>=1.10.0
 six>=1.10.0
 ply>=3.10
-PyYAML>=3.12  # yaml package
+PyYAML>=3.13  # yaml package
 # On Windows, M2Crypto must be installed via pywbem_os_setup.bat
 M2Crypto>=0.30.1; python_version < '3.0' and sys_platform != 'win32'
 ordereddict>=1.1; python_version == '2.6'

rtd-requirements.txt

@@ -6,7 +6,7 @@
 pbr>=1.10.0
 six>=1.10.0
 ply>=3.8
-PyYAML>=3.12
+PyYAML>=3.13
 # M2Crypto>=0.30.1  # we cannot install M2Crypto because RTD does not have Swig
 Sphinx>=1.4.9
 sphinx-git>=10.0.0

setup.cfg

@@ -41,6 +41,7 @@ classifier =
     Programming Language :: Python :: 3.4
     Programming Language :: Python :: 3.5
     Programming Language :: Python :: 3.6
+    Programming Language :: Python :: 3.7
     Topic :: Software Development :: Libraries :: Python Modules
     Topic :: System :: Systems Administration
 

testsuite/test_nocasedict.py

@@ -4,6 +4,7 @@
 
 from __future__ import absolute_import
 
+import sys
 import re
 import six
 try:
@@ -149,7 +150,7 @@ def __hash__(self):
             exp_dict=OrderedDict([('Dog', 'Cat'), ('Budgie', 'Fish')]),
             verify_order=False,
         ),
-        None, UserWarning, True
+        None, UserWarning if sys.version_info[0:2] < (3, 7) else None, True
     ),
     (
         "Dict from list as positional arg and keyword args",