matplotlib · tacaswell · Sep 16, 2018 · Sep 15, 2018 · Sep 15, 2018 · Sep 7, 2018
diff --git a/.flake8 b/.flake8
@@ -23,7 +23,7 @@ exclude =
 
 per-file-ignores =
     setup.py: E402
-    setupext.py: E302, E501
+    setupext.py: E501
 
     tools/compare_backend_driver_results.py: E501
     tools/subset.py: E221, E231, E251, E261, E302, E501, E701

diff --git a/doc-requirements.txt b/doc-requirements.txt
@@ -6,7 +6,7 @@
 # Install the documentation requirements with:
 #     pip install -r doc-requirements.txt
 #
-sphinx>=1.3,!=1.5.0,!=1.6.4,!=1.7.3,<1.8
+sphinx>=1.3,!=1.5.0,!=1.6.4,!=1.7.3
 colorspacious
 ipython
 ipywidgets

diff --git a/doc/conf.py b/doc/conf.py
@@ -84,7 +84,10 @@ def _check_deps():
 autosummary_generate = True
 
 autodoc_docstring_signature = True
-autodoc_default_flags = ['members', 'undoc-members']
+if sphinx.version_info < (1, 8):
+    autodoc_default_flags = ['members', 'undoc-members']
+else:
+    autodoc_default_options = {'members': None, 'undoc-members': None}
 
 intersphinx_mapping = {
     'python': ('https://docs.python.org/3', None),

diff --git a/doc/sphinxext/github.py b/doc/sphinxext/github.py
@@ -75,7 +75,6 @@ def ghissue_role(name, rawtext, text, lineno, inliner, options={}, content=[]):
         prb = inliner.problematic(rawtext, rawtext, msg)
         return [prb], [msg]
     app = inliner.document.settings.env.app
-    #app.info('issue %r' % text)
     if 'pull' in name.lower():
         category = 'pull'
     elif 'issue' in name.lower():
@@ -105,7 +104,6 @@ def ghuser_role(name, rawtext, text, lineno, inliner, options={}, content=[]):
     :param content: The directive content for customization.
     """
     app = inliner.document.settings.env.app
-    #app.info('user link %r' % text)
     ref = 'https://www.github.com/' + text
     node = nodes.reference(rawtext, text, refuri=ref, **options)
     return [node], []
@@ -126,7 +124,6 @@ def ghcommit_role(name, rawtext, text, lineno, inliner, options={}, content=[]):
     :param content: The directive content for customization.
     """
     app = inliner.document.settings.env.app
-    #app.info('user link %r' % text)
     try:
         base = app.config.github_project_url
         if not base:
@@ -146,7 +143,6 @@ def setup(app):
 
     :param app: Sphinx application context.
     """
-    app.info('Initializing GitHub plugin')
     app.add_role('ghissue', ghissue_role)
     app.add_role('ghpull', ghissue_role)
     app.add_role('ghuser', ghuser_role)

diff --git a/doc/users/next_whats_new/2018-09-06-AL.rst b/doc/users/next_whats_new/2018-09-06-AL.rst
diff --git a/doc/users/whats_new.rst b/doc/users/whats_new.rst
@@ -239,6 +239,29 @@ Headless linux servers (identified by the DISPLAY env not being defined)
 will not select a GUI backend.
 
 
+Return type of ArtistInspector.get_aliases changed
+``````````````````````````````````````````````````
+
+`ArtistInspector.get_aliases` previously returned the set of aliases as
+``{fullname: {alias1: None, alias2: None, ...}}``.  The dict-to-None mapping
+was used to simulate a set in earlier versions of Python.  It has now been
+replaced by a set, i.e. ``{fullname: {alias1, alias2, ...}}``.
+
+This value is also stored in `ArtistInspector.aliasd`, which has likewise
+changed.
+
+
+``:math:`` directive renamed to ``:mathmpl:``
+`````````````````````````````````````````````
+
+The ``:math:`` rst role provided by `matplotlib.sphinxext.mathmpl` has been
+renamed to ``:mathmpl:`` to avoid conflicting with the ``:math:`` role that
+Sphinx 1.8 provides by default.  (``:mathmpl:`` uses Matplotlib to render math
+expressions to images embedded in html, whereas Sphinx uses MathJax.)
+
+When using Sphinx<1.8, both names (``:math:`` and ``:mathmpl:``) remain
+available for backcompatibility.
+
 
 ==================
 Previous Whats New

diff --git a/lib/matplotlib/colorbar.py b/lib/matplotlib/colorbar.py
@@ -267,7 +267,8 @@ def __call__(self):
         vmin = self._colorbar.norm.vmin
         vmax = self._colorbar.norm.vmax
         ticks = ticker.AutoMinorLocator.__call__(self)
-        return ticks[(ticks >= vmin) & (ticks <= vmax)]
+        rtol = (vmax - vmin) * 1e-10
+        return ticks[(ticks >= vmin - rtol) & (ticks <= vmax + rtol)]
 
 
 class _ColorbarLogLocator(ticker.LogLocator):

diff --git a/lib/matplotlib/sphinxext/mathmpl.py b/lib/matplotlib/sphinxext/mathmpl.py
@@ -1,10 +1,11 @@
+import hashlib
 import os
 import sys
-from hashlib import md5
+import warnings
 
 from docutils import nodes
 from docutils.parsers.rst import directives
-import warnings
+import sphinx
 
 from matplotlib import rcParams
 from matplotlib.mathtext import MathTextParser
@@ -61,7 +62,7 @@ def latex2png(latex, filename, fontset='cm'):
 def latex2html(node, source):
     inline = isinstance(node.parent, nodes.TextElement)
     latex = node['latex']
-    name = 'math-%s' % md5(latex.encode()).hexdigest()[-10:]
+    name = 'math-%s' % hashlib.md5(latex.encode()).hexdigest()[-10:]
 
     destdir = os.path.join(setup.app.builder.outdir, '_images', 'mathmpl')
     if not os.path.exists(destdir):
@@ -110,9 +111,13 @@ def depart_latex_math_latex(self, node):
     app.add_node(latex_math,
                  html=(visit_latex_math_html, depart_latex_math_html),
                  latex=(visit_latex_math_latex, depart_latex_math_latex))
-    app.add_role('math', math_role)
-    app.add_directive('math', math_directive,
+    app.add_role('mathmpl', math_role)
+    app.add_directive('mathmpl', math_directive,
                       True, (0, 0, 0), **options_spec)
+    if sphinx.version_info < (1, 8):
+        app.add_role('math', math_role)
+        app.add_directive('math', math_directive,
+                          True, (0, 0, 0), **options_spec)
 
     metadata = {'parallel_read_safe': True, 'parallel_write_safe': True}
     return metadata
diff --git a/lib/matplotlib/tests/test_colorbar.py b/lib/matplotlib/tests/test_colorbar.py
@@ -294,6 +294,15 @@ def test_colorbar_minorticks_on_off():
         np.testing.assert_almost_equal(cbar.ax.yaxis.get_minorticklocs(),
                                        np.array([]))
 
+        im.set_clim(vmin=-1.2, vmax=1.2)
+        cbar.minorticks_on()
+        correct_minorticklocs = np.array([-1.2, -1.1, -0.9, -0.8, -0.7, -0.6,
+                                          -0.4, -0.3, -0.2, -0.1,  0.1, 0.2,
+                                           0.3,  0.4,  0.6,  0.7,  0.8,  0.9,
+                                           1.1,  1.2])
+        np.testing.assert_almost_equal(cbar.ax.yaxis.get_minorticklocs(),
+                                       correct_minorticklocs)
+
 
 def test_colorbar_autoticks():
     # Test new autotick modes. Needs to be classic because

diff --git a/setup.cfg.template b/setup.cfg.template
@@ -63,15 +63,9 @@
 #           behavior
 #
 #agg = auto
-#cairo = auto
-#gtk3agg = auto
-#gtk3cairo = auto
 #macosx = auto
-#pyside = auto
-#qt4agg = auto
 #tkagg = auto
 #windowing = auto
-#wxagg = auto
 
 [rc_options]
 # User-configurable options
@@ -81,10 +75,9 @@
 #
 # The Agg, Ps, Pdf and SVG backends do not require external dependencies. Do
 # not choose MacOSX, or TkAgg if you have disabled the relevant extension
-# modules.  Agg will be used by default.
+# modules.  The default is determined by fallback.
 #
 #backend = Agg
-#
 
 [package_data]
 # Package additional files found in the lib/matplotlib directories.

diff --git a/setup.py b/setup.py
@@ -70,18 +70,9 @@
     setupext.Tests(),
     setupext.Toolkits_Tests(),
     'Optional backend extensions',
-    # These backends are listed in order of preference, the first
-    # being the most preferred.  The first one that looks like it will
-    # work will be selected as the default backend.
-    setupext.BackendMacOSX(),
-    setupext.BackendQt5(),
-    setupext.BackendQt4(),
-    setupext.BackendGtk3Agg(),
-    setupext.BackendGtk3Cairo(),
-    setupext.BackendTkAgg(),
-    setupext.BackendWxAgg(),
     setupext.BackendAgg(),
-    setupext.BackendCairo(),
+    setupext.BackendTkAgg(),
+    setupext.BackendMacOSX(),
     setupext.Windowing(),
     'Optional package data',
     setupext.Dlls(),
@@ -133,7 +124,6 @@ def run(self):
     package_dir = {'': 'lib'}
     install_requires = []
     setup_requires = []
-    default_backend = None
 
     # If the user just queries for information, don't bother figuring out which
     # packages to build or install.
@@ -169,10 +159,6 @@ def run(self):
                         required_failed.append(package)
                 else:
                     good_packages.append(package)
-                    if (isinstance(package, setupext.OptionalBackendPackage)
-                            and package.runtime_check()
-                            and default_backend is None):
-                        default_backend = package.name
         print_raw('')
 
         # Abort if any of the required packages can not be built.
@@ -203,14 +189,16 @@ def run(self):
             setup_requires.extend(package.get_setup_requires())
 
         # Write the default matplotlibrc file
-        if default_backend is None:
-            default_backend = 'svg'
-        if setupext.options['backend']:
-            default_backend = setupext.options['backend']
         with open('matplotlibrc.template') as fd:
-            template = fd.read()
+            template_lines = fd.read().splitlines(True)
+        backend_line_idx, = [  # Also asserts that there is a single such line.
+            idx for idx, line in enumerate(template_lines)
+            if line.startswith('#backend ')]
+        if setupext.options['backend']:
+            template_lines[backend_line_idx] = (
+                'backend: {}'.format(setupext.options['backend']))
         with open('lib/matplotlib/mpl-data/matplotlibrc', 'w') as fd:
-            fd.write(template)
+            fd.write(''.join(template_lines))
 
         # Finalize the extension modules so they can get the Numpy include
         # dirs