update version, requirements

doc/installation.rst

@@ -5,41 +5,31 @@ Downloading and Installation
 Prerequisites
 ~~~~~~~~~~~~~~~
 
-The current version of wxmplot is |release|, released in August, 2019.
+The current version of wxmplot is |release|, released in May, 2021.
 
-The wxmplot package requires wxPython, matplotlib, numpy, and six.  All of
+The wxmplot package requires Python3.6 or higher, wxPython 4.0.3 or higher,
+matplotlib 3.0 or higher, and numpy 1.12 or higher.  All of
 these are readily available from `pip` or on `conda` channels.
 
-This is the final version to support Python 2.7 and WxPython below
-version 4.  WxPython 4.0 is strongly recommended, and is required for
-Python 3.5 and higher.  WxPython version 2.9 and 3 may also continue to
-work with Python 2.7, and this combination is no longer tested.  Matplotlib
-version 3.0 or higher is also strongly recommended. Older versions may
-still work but are not tested.
-
 
 Downloads
 ~~~~~~~~~~~~~
 
-.. _github:   http://github.com/newwville/wxmplot
-.. _PyPI:     http://pypi.python.org/pypi/wxmplot
+.. _github:   https://github.com/newwville/wxmplot
+.. _PyPI:     https://pypi.python.org/pypi/wxmplot
 
 The latest version (|release|) is available from `PyPI`_ or `github`_, and
 the package can be installed with::
 
    pip install wxmplot
 
-Users of anaconda python can also install wxmplot with::
-
-   conda install -c gsecars wxmplot
-
 
 Development Version
 ~~~~~~~~~~~~~~~~~~~~~~~~
 
 To get the latest development version, use::
 
-   git clone http://github.com/newville/wxmplot.git
+   git clone https://github.com/newville/wxmplot.git
 
 Installation from Source
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

requirements.txt

@@ -1,3 +1,3 @@
 numpy>=1.12
-matplotlib>=2.0
+matplotlib>=3.0
 wxpython>=4.0.3

setup.py

@@ -24,8 +24,8 @@
       cmdclass=versioneer.get_cmdclass(),
       author = 'Matthew Newville',
       author_email = '[email protected]',
-      url = 'http://newville.github.io/wxmplot/',
-      download_url = 'http://github.com/newville/wxmplot/',
+      url = 'https://newville.github.io/wxmplot/',
+      download_url = 'https://github.com/newville/wxmplot/',
       license = 'OSI Approved :: MIT License',
       platforms=['Windows', 'Linux', 'Mac OS X'],
       description  = 'wxPython plotting widgets using matplotlib',
@@ -37,7 +37,7 @@
                    'Topic :: Scientific/Engineering :: Visualization'],
       packages = ['wxmplot'],
       install_requires=['numpy>=1.12',
-                        'matplotlib>=2.0',
+                        'matplotlib>=3.0',
                         'wxpython>=4.0.3'],
       ## tests_require=['pytest'],
  )