From eeeee74ff61646d321500490bbb9dbbcde424e14 Mon Sep 17 00:00:00 2001
From: Elliott Sales de Andrade <quantum.analyst@gmail.com>
Date: Wed, 27 Sep 2017 19:35:59 -0400
Subject: [PATCH 1/3] matplotlibrc path search fix

Signed-off-by: Elliott Sales de Andrade <quantum.analyst@gmail.com>
---
 lib/matplotlib/__init__.py            | 18 +++---------------
 lib/matplotlib/tests/test_rcparams.py | 22 ++++++++++++++++------
 2 files changed, 19 insertions(+), 21 deletions(-)

diff --git a/lib/matplotlib/__init__.py b/lib/matplotlib/__init__.py
index 091cb6178..5648392ce 100644
--- a/lib/matplotlib/__init__.py
+++ b/lib/matplotlib/__init__.py
@@ -664,18 +664,7 @@ def _get_data_path():
         return path
 
     def get_candidate_paths():
-        yield Path(__file__).with_name('mpl-data')
-        # setuptools' namespace_packages may highjack this init file
-        # so need to try something known to be in Matplotlib, not basemap.
-        import matplotlib.afm
-        yield Path(matplotlib.afm.__file__).with_name('mpl-data')
-        # py2exe zips pure python, so still need special check.
-        if getattr(sys, 'frozen', None):
-            yield Path(sys.executable).with_name('mpl-data')
-            # Try again assuming we need to step up one more directory.
-            yield Path(sys.executable).parent.with_name('mpl-data')
-            # Try again assuming sys.path[0] is a dir not a exe.
-            yield Path(sys.path[0]) / 'mpl-data'
+        yield Path('/usr/share/matplotlib/mpl-data')
 
     for path in get_candidate_paths():
         if path.is_dir():
@@ -727,8 +716,7 @@ def matplotlib_fname():
 
          - `$HOME/.matplotlib/matplotlibrc` if `$HOME` is defined.
 
-    - Lastly, it looks in `$MATPLOTLIBDATA/matplotlibrc` for a
-      system-defined copy.
+    - Lastly, it looks in `/etc/matplotlibrc` for a system-defined copy.
     """
 
     def gen_candidates():
@@ -741,7 +729,7 @@ def matplotlib_fname():
             yield matplotlibrc
             yield os.path.join(matplotlibrc, 'matplotlibrc')
         yield os.path.join(get_configdir(), 'matplotlibrc')
-        yield os.path.join(get_data_path(), 'matplotlibrc')
+        yield '/etc/matplotlibrc'
 
     for fname in gen_candidates():
         if os.path.exists(fname):
diff --git a/lib/matplotlib/tests/test_rcparams.py b/lib/matplotlib/tests/test_rcparams.py
index 7eec4d421..4c74619f6 100644
--- a/lib/matplotlib/tests/test_rcparams.py
+++ b/lib/matplotlib/tests/test_rcparams.py
@@ -451,11 +451,22 @@ def test_rcparams_reset_after_fail():
         assert mpl.rcParams['text.usetex'] is False
 
 
-def test_if_rctemplate_is_up_to_date():
+@pytest.fixture
+def mplrc():
+    # This is the Fedora-specific location ...
+    if 'MATPLOTLIBDATA' in os.environ:
+        # ... in buildroot.
+        return os.path.join(os.environ['MATPLOTLIBDATA'],
+                            '../../../../etc/matplotlibrc')
+    else:
+        # ... on installed systems.
+        return '/etc/matplotlibrc'
+
+
+def test_if_rctemplate_is_up_to_date(mplrc):
     # This tests if the matplotlibrc.template file contains all valid rcParams.
     deprecated = {*mpl._all_deprecated, *mpl._deprecated_remain_as_none}
-    path_to_rc = os.path.join(mpl.get_data_path(), 'matplotlibrc')
-    with open(path_to_rc, "r") as f:
+    with open(mplrc, "r") as f:
         rclines = f.readlines()
     missing = {}
     for k, v in mpl.defaultParams.items():
@@ -478,11 +489,10 @@ def test_if_rctemplate_is_up_to_date():
                          .format(missing.items()))
 
 
-def test_if_rctemplate_would_be_valid(tmpdir):
+def test_if_rctemplate_would_be_valid(tmpdir, mplrc):
     # This tests if the matplotlibrc.template file would result in a valid
     # rc file if all lines are uncommented.
-    path_to_rc = os.path.join(mpl.get_data_path(), 'matplotlibrc')
-    with open(path_to_rc, "r") as f:
+    with open(mplrc, "r") as f:
         rclines = f.readlines()
     newlines = []
     for line in rclines:
-- 
2.20.1