Drop python 3.6

.github/workflows/main.yml

@@ -15,32 +15,28 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        CONDA_PY: ["36", "37", "38", "39"]
+        PYTHON_VERSION: ["3.7", "3.8", "3.9", "3.10"]
 
     steps:
     - uses: actions/checkout@v2
-    # We need to install Qt on the system otherwise tests in
-    # tests/test_qt_js_integration.py crash.
-    - name: Install Qt
-      uses: jurplel/install-qt-action@v2
+    - uses: browser-actions/[email protected]
     - uses: conda-incubator/setup-miniconda@v2
       with:
         auto-update-conda: true
         auto-activate-base: true
-        activate-environment: ''
+        activate-environment: ""
         channels: conda-forge,esss
         channel-priority: true
     - name: Install
       env:
-        CONDA_PY: ${{ matrix.CONDA_PY }}
+        PYTHON_VERSION: ${{ matrix.PYTHON_VERSION }}
       run: |
         conda config --system --set always_yes yes --set changeps1 no
         conda install -c conda-forge conda-devenv
         conda info -a
         export TEST_QMXGRAPH=1
         conda devenv -n qmxgraph
-        conda install -n qmxgraph coveralls pytest-cov
-        conda init bash
+        conda list -n qmxgraph
     - name: Tests
       shell: bash -l {0}
       run: |

.gitignore

@@ -62,6 +62,9 @@ target/
 # PyCharm files
 .idea/
 
+# Underling mxgraph library that could have been cloned.
+/mxgraph/
+
 # Generate Qt resource files
 resource_*.qrc
 resource_*.py

_base_environment.devenv.yml

@@ -1,7 +1,8 @@
+{% set TEST_QMXGRAPH = os.environ.get('TEST_QMXGRAPH', '0') != '0' %}
 name: qmxgraph
 
 dependencies:
-    - python >=3.6
+    - python >=3.7
 
     - attrs >=17
     - colorama
@@ -16,5 +17,8 @@ dependencies:
 environment:
   PYTHONPATH:
     - {{ root }}/src
+    {% if TEST_QMXGRAPH %}
+    - {{ root }}/tests
+    {% endif %}
   MYPYPATH:
     - {{ root }}/src

environment.devenv.yml

@@ -1,6 +1,5 @@
 {% set TEST_QMXGRAPH = os.environ.get('TEST_QMXGRAPH', '0') != '0' %}
-{% set PYTHON_VERSION = os.environ.get('PYTHON_VERSION', '3.6') %}
-{% set PYTHON_VERSION = os.environ.get('TRAVIS_PYTHON_VERSION', PYTHON_VERSION) %}
+{% set PYTHON_VERSION = os.environ.get('PYTHON_VERSION', '3.10') %}
 
 name: qmxgraph
 
@@ -10,22 +9,28 @@ includes:
 environment:
   # Tip: Use `--driver <driver_name>` to change driver for a single run
   {% if TEST_QMXGRAPH %}
-  PYTEST_ADDOPTS: --driver PhantomJS
+  PYTEST_ADDOPTS: --driver Chrome
   {% endif %}
 
 dependencies:
   - python ={{ PYTHON_VERSION }}
 
+  - more-itertools <10.0.0  # [PYTHON_VERSION == '3.7']
+
   {% if TEST_QMXGRAPH %}
-  - cherrypy
-  - hypothesis ==3.11.0
+  - cherrypy >=18.0.0
   - pytest-mock
   - pytest-qt
   - pytest-rerunfailures
-  - pytest-selenium >=1,<2
+  - pytest-selenium >2
   - pytest-timeout
+  # Recent selenium versions (>=4.10.0) are currently incompatible with pytest-selenium (some constructor changed argument list).
+  - selenium >=4.0.0, <4.10.0
   {% if sys.platform != 'win32' %}
   - pytest-xvfb
   {% endif %}
 
+  # Not really required to run the tests but are closely related.
+  - coveralls
+  - pytest-cov
   {% endif %}

esss_environment.devenv.yml

@@ -6,35 +6,15 @@ includes:
   - {{ root }}/_base_environment.devenv.yml
 
 environment:
-# PhantomJS
-# pros:
-# * doesn't open a browser (i.e. known as headless)
-# * as consequence, doesn't interfere with developer GUI
-# * uses Webkit, same web browser engine used by Qt
-#
-# cons:
-# * seems slower than Firefox driver
-# * harder to debug (can't put a breakpoint and take a look at web driver's
-#   browser, for instance)
-#
-# Firefox
-# pros:
-# * easier to debug (Firefox [and Chrome] already come with developer tools
-#   builtin nowadays)
-#
-# cons:
-# * pops up a Firefox instance for each test
-# * it is not the same web browser engine as used by Qt
-#
 # Tip: Use `--driver <driver_name>` to change driver for a single run
   {% if TEST_QMXGRAPH %}
-  PYTEST_ADDOPTS: --driver PhantomJS
+  PYTEST_ADDOPTS: --driver Chrome
   {% else %}
   PYTEST_ADDOPTS: ""
   {% endif %}
 
 dependencies:
-  - python>=3.5
+  - python>=3.7
   - mxgraph>=3.7.5
 
   - esss-pylupdate5>=5.6.0+1
@@ -49,13 +29,14 @@ dependencies:
   {% if TEST_QMXGRAPH %}
   - conda-wrappers
 
-  - cherrypy==7.1.0
-  - phantomjs>=2.1
+  - cherrypy>=18.0.0
   - pytest-mock>=1.4.0
   - pytest-qt>=2.1.0
-  - pytest-selenium>=1.2.1,<2
+  - pytest-selenium>2
   - pytest-timeout>=1.0.0
   - pytest-xdist>=1.15
+  # Recent selenium versions (>=4.10.0) are currently incompatible with pytest-selenium (some constructor changed argument list).
+  - selenium >=4.0.0, <4.10.0
   {% if sys.platform != 'win32' %}
   - pytest-xvfb
   {% endif %}

scripts/run_tests.sh

@@ -1,6 +1,12 @@
 #!/bin/bash
 git clone --depth=1 --branch v3.7.5 https://github.com/jgraph/mxgraph.git
-export PYTEST_ADDOPTS="--driver PhantomJS"
 export MXGRAPHPATH=mxgraph
+
+export LIBGL_ALWAYS_SOFTWARE=1
+export GALLIUM_DRIVER=llvmpipe
+export ENABLE_LLVMPIPE_GL=1
+export QT_QUICK_BACKEND=software
+export QTWEBENGINE_CHROMIUM_FLAGS="--disable-gpu --no-sandbox"
+
 inv qrc
 inv test

setup.py

@@ -32,10 +32,10 @@
         'License :: OSI Approved :: MIT License',
         'Natural Language :: English',
         'Operating System :: OS Independent',
-        'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
         'Topic :: Scientific/Engineering :: Visualization',
         'Topic :: Software Development :: User Interfaces',
     ],

src/qmxgraph/api.py

@@ -1,7 +1,7 @@
-import sys
 import textwrap
 import weakref
 from contextlib import contextmanager
+from contextlib import nullcontext
 from typing import Any
 from typing import Generator
 from typing import List
@@ -1020,13 +1020,3 @@ def handle_message(msg_type, context, message):
         yield messages
     finally:
         qInstallMessageHandler(previous_handler)
-
-
-if sys.version_info[:] < (3, 7):
-
-    @contextmanager
-    def nullcontext(enter_result=None):
-        yield enter_result
-
-else:
-    from contextlib import nullcontext

tasks.py

@@ -60,11 +60,29 @@ def create_web_resource(resource_name, src_dir):
         print_message('{}* generated {}'.format(indent * 2, py_file))
 
     mxgraph = os.environ.get('MXGRAPHPATH', None)
-    if mxgraph is None:
+    if mxgraph is not None:
+        if not os.path.isdir(mxgraph):
+            raise IOError(
+                "Unable to determine MxGraph to use:"
+                " directory obtained from `MXGRAPHPATH` env var does not exist"
+            )
+
+    else:
         env_dir = deploy.get_conda_env_path()
         if env_dir is None:
-            raise IOError("Unable to determine MxGraph mxgraph in " "environment")
+            raise IOError(
+                "Unable to determine MxGraph to use:"
+                " no `MXGRAPHPATH` env var defined"
+                " and no conda environment active"
+            )
+
         mxgraph = '{env_dir}/mxgraph'.format(env_dir=env_dir)
+        if not os.path.isdir(mxgraph):
+            raise IOError(
+                "Unable to determine MxGraph to use:"
+                " no `MXGRAPHPATH` env var defined"
+                " and not located in active conda environment"
+            )
 
     create_web_resource(
         resource_name='mxgraph', src_dir='{folder}/javascript/src'.format(folder=mxgraph)
@@ -137,7 +155,7 @@ def docs(ctx, python_version=None):
 @invoke.task
 def test(ctx):
     print_message('test'.format(), color=Fore.BLUE, bright=True)
-    cmd = 'pytest --cov=qmxgraph --timeout=30 -v --durations=10'
+    cmd = 'pytest --cov=qmxgraph --timeout=30 -v --durations=10 --color=yes'
 
     import subprocess