Remove support for Python 3.5.

Start testing for Python 3.9.

.azure-pipelines.yml

@@ -27,9 +27,6 @@ schedules:
 
 strategy:
   matrix:
-    linux-python35:
-      imageName: 'ubuntu-latest'
-      python.version: '3.5'
     linux-python36:
       imageName: 'ubuntu-latest'
       python.version: '3.6'
@@ -40,14 +37,16 @@ strategy:
       imageName: 'ubuntu-latest'
       python.version: '3.8'
       upload_coverage: true
+    linux-python39:
+      imageName: 'ubuntu-latest'
+      python.version: '3.9'
     mac-python38:
       imageName: 'macOS-latest'
       python.version: '3.8'
       upload_coverage: true
-    windows-x86-python35:
-      imageName: 'windows-latest'
-      python.version: '3.5'
-      python.arch: 'x86'
+    mac-python39:
+      imageName: 'macOS-latest'
+      python.version: '3.9'
     windows-x86-python36:
       imageName: 'windows-latest'
       python.version: '3.6'
@@ -61,9 +60,10 @@ strategy:
       python.version: '3.8'
       python.arch: 'x86'
       upload_coverage: true
-    windows-x64-python35:
+    windows-x86-python39:
       imageName: 'windows-latest'
-      python.version: '3.5'
+      python.version: '3.9'
+      python.arch: 'x86'
     windows-x64-python36:
       imageName: 'windows-latest'
       python.version: '3.6'
@@ -75,6 +75,9 @@ strategy:
       python.version: '3.8'
       upload_coverage: true
       deploy: true
+    windows-x64-python39:
+      imageName: 'windows-latest'
+      python.version: '3.9'
   maxParallel: 10
 
 pool:

README.rst

@@ -185,7 +185,7 @@ Huge thanks to James Josephides for making the *PRISM* logo.
 .. |PyPI| image:: https://img.shields.io/pypi/v/prism.svg?logo=pypi&logoColor=white&label=PyPI
     :target: https://pypi.python.org/pypi/prism
     :alt: PyPI - Latest Release
-.. |Python| image:: https://img.shields.io/badge/Python-3.5%2B-blue?logo=python&logoColor=white
+.. |Python| image:: https://img.shields.io/badge/Python-3.6%2B-blue?logo=python&logoColor=white
     :target: https://pypi.python.org/pypi/prism
     :alt: PyPI - Python Versions
 .. |Azure| image:: https://img.shields.io/azure-devops/build/1313e/2f7c67c7-61eb-4e70-9ff3-7f54f8e39987/1?logo=azure-pipelines&logoColor=white&label=Azure

docs/source/user/FAQ.rst

@@ -7,7 +7,7 @@ How do I contribute?
 Contributing to *PRISM* is done through pull requests in the `repository`_.
 If you have an idea on what to contribute, it is recommended to open a `GitHub issue`_ about it, such that the maintainers can give their advice or help.
 If you want to contribute but do not really know what, then you can take a look at the ToDos that are scattered throughout the code.
-When making a contribution, please keep in mind that it must be compatible with all Python versions that *PRISM* supports (3.5+), and preferably with all operating systems as well.
+When making a contribution, please keep in mind that it must be compatible with all Python versions that *PRISM* supports (3.6+), and preferably with all operating systems as well.
 
 .. _repository: https://github.com/1313e/PRISM
 .. _GitHub issue: https://github.com/1313e/PRISM/issues

setup.py

@@ -68,15 +68,15 @@
           'Operating System :: Unix',
           'Programming Language :: Python',
           'Programming Language :: Python :: 3',
-          'Programming Language :: Python :: 3.5',
           'Programming Language :: Python :: 3.6',
           'Programming Language :: Python :: 3.7',
           'Programming Language :: Python :: 3.8',
+          'Programming Language :: Python :: 3.9',
           'Topic :: Scientific/Engineering',
           'Topic :: Software Development'
           ],
       keywords=('prism model analysis emulator regression mcmc optimization'),
-      python_requires='>=3.5, <4',
+      python_requires='>=3.6, <4',
       packages=find_packages(),
       package_dir={'prism': "prism"},
       include_package_data=True,