Drop Python 3.6 support

.gitignore

@@ -185,3 +185,4 @@ Temporary Items
 
 # Ignore all local history of files
 .history
+.vscode/settings.json

.travis.yml

@@ -1,7 +1,8 @@
 language: python
 python:
 - 3.7
-- 3.6
+- 3.8
+- 3.9
 install: pip install -U tox-travis
 script: tox
 deploy:

CONTRIBUTING.rst

@@ -45,7 +45,8 @@ articles, and such.
 Submit Feedback
 ~~~~~~~~~~~~~~~
 
-The best way to send feedback is to file an issue at https://github.com/nicoguaro/continuum_mechanics/issues.
+The best way to send feedback is to file an issue at
+https://github.com/nicoguaro/continuum_mechanics/issues.
 
 If you are proposing a feature:
 
@@ -57,14 +58,17 @@ If you are proposing a feature:
 Get Started!
 ------------
 
-Ready to contribute? Here's how to set up `continuum_mechanics` for local development.
+Ready to contribute? Here's how to set up `continuum_mechanics` for
+local development.
 
 1. Fork the `continuum_mechanics` repo on GitHub.
 2. Clone your fork locally::
 
     $ git clone git@github.com:your_name_here/continuum_mechanics.git
 
-3. Install your local copy into a virtualenv. Assuming you have virtualenvwrapper installed, this is how you set up your fork for local development::
+3. Install your local copy into a virtualenv. Assuming you have
+   virtualenvwrapper installed, this is how you set up your fork for local
+   development::
 
     $ mkvirtualenv continuum_mechanics
     $ cd continuum_mechanics/
@@ -102,7 +106,7 @@ Before you submit a pull request, check that it meets these guidelines:
 2. If the pull request adds functionality, the docs should be updated. Put
    your new functionality into a function with a docstring, and add the
    feature to the list in README.rst.
-3. The pull request should work for Python 3.6 and 3.7, and for PyPy. Check
+3. The pull request should work for Python 3.7 to 3.9, and for PyPy. Check
    https://travis-ci.org/nicoguaro/continuum_mechanics/pull_requests
    and make sure that the tests pass for all supported Python versions.
 

HISTORY.rst

@@ -21,3 +21,9 @@ History
 * Fix vector gradient for curvilinear coordinates.
 
 * Add divergence for second-order tensors.
+
+
+0.2.2 (2021-04-12)
+------------------
+
+* Python 3.6 support dropped.

environment.yml

@@ -2,7 +2,7 @@ name: continuum_mechanics
 channels:
   - conda-forge
 dependencies:
-  - python>=3.6
+  - python>=3.7
   - sympy>=1.3
   - matplotlib>=3
   - numpy

setup.py

@@ -24,13 +24,14 @@
     author="Nicolás Guarín-Zapata",
     author_email='nicoguarin@gmail.com',
     classifiers=[
-        'Development Status :: 3 - Alpha',
+        'Development Status :: 4 - Beta',
         'Intended Audience :: Developers',
         'License :: OSI Approved :: MIT License',
         'Natural Language :: English',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
     ],
     description="Utilities for doing calculations in continuum mechanics.",
     install_requires=requirements,
@@ -44,6 +45,6 @@
     test_suite='tests',
     tests_require=test_requirements,
     url='https://github.com/nicoguaro/continuum_mechanics',
-    version='0.2.1',
+    version='0.2.2',
     zip_safe=False,
 )

tox.ini

@@ -1,10 +1,12 @@
 [tox]
-envlist = py36, py37, flake8
+envlist = py37, py38, py39, flake8
 
 [travis]
 python =
     3.7: py37
-    3.6: py36
+    3.8: py38
+    3.9: py39
+
 
 [testenv:flake8]
 basepython = python