Merge pull request matplotlib#22205 from QuLogic/np119

Bump minimum NumPy to 1.19

Author: dstansby

doc/api/next_api_changes/development/22205-ES.rst

@@ -0,0 +1,15 @@
+Increase to minimum supported versions of Python and dependencies
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+For Matplotlib 3.6, the :ref:`minimum supported versions <dependencies>` are
+being bumped:
+
++------------+-----------------+---------------+
+| Dependency |  min in mpl3.5  | min in mpl3.6 |
++============+=================+===============+
+|   NumPy    |       1.17      |      1.19     |
++------------+-----------------+---------------+
+
+This is consistent with our :ref:`min_deps_policy` and `NEP29
+<https://numpy.org/neps/nep-0029-deprecation_policy.html>`__
+

doc/api/prev_api_changes/api_changes_3.2.0/development.rst

@@ -22,7 +22,7 @@ is desired.
 
 Packaging DLLs
 ~~~~~~~~~~~~~~
-Previously, it was possible to package Windows DLLs into the Maptlotlib
+Previously, it was possible to package Windows DLLs into the Matplotlib
 wheel (or sdist) by copying them into the source tree and setting the
 ``package_data.dlls`` entry in ``setup.cfg``.
 

doc/api/prev_api_changes/api_changes_3.4.0/development.rst

@@ -4,7 +4,7 @@ Development changes
 Increase to minimum supported versions of Python and dependencies
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-For Maptlotlib 3.4, the :ref:`minimum supported versions <dependencies>` are
+For Matplotlib 3.4, the :ref:`minimum supported versions <dependencies>` are
 being bumped:
 
 +------------+-----------------+---------------+

doc/devel/dependencies.rst

@@ -15,7 +15,7 @@ mandatory dependencies are automatically installed. This list is mainly for
 reference.
 
 * `Python <https://www.python.org/downloads/>`_ (>= 3.7)
-* `NumPy <https://numpy.org>`_ (>= 1.17)
+* `NumPy <https://numpy.org>`_ (>= 1.19)
 * `setuptools <https://setuptools.readthedocs.io/en/latest/>`_
 * `cycler <https://matplotlib.org/cycler/>`_ (>= 0.10.0)
 * `dateutil <https://pypi.org/project/python-dateutil/>`_ (>= 2.7)

doc/devel/min_dep_policy.rst

@@ -61,7 +61,7 @@ We will support at least minor versions of the development
 dependencies released in the 12 months prior to our planned release.
 
 We will only bump these as needed or versions no longer support our
-minimum Python and numpy.
+minimum Python and NumPy.
 
 System and C-dependencies
 =========================
@@ -83,6 +83,7 @@ specification of the dependencies.
 ==========  ========  ======
 Matplotlib  Python    NumPy
 ==========  ========  ======
+`3.6`_      3.7       1.19.0
 `3.5`_      3.7       1.17.0
 `3.4`_      3.7       1.16.0
 `3.3`_      3.6       1.15.0
@@ -100,6 +101,7 @@ Matplotlib  Python    NumPy
 1.0         2.4       1.1
 ==========  ========  ======
 
+.. _`3.6`: https://matplotlib.org/3.6.0/devel/dependencies.html
 .. _`3.5`: https://matplotlib.org/3.5.0/devel/dependencies.html
 .. _`3.4`: https://matplotlib.org/3.4.0/devel/dependencies.html
 .. _`3.3`: https://matplotlib.org/3.3.0/users/installing.html#dependencies

environment.yml

@@ -12,7 +12,7 @@ dependencies:
   - cycler>=0.10.0
   - fonttools>=4.22.0
   - kiwisolver>=1.0.1
-  - numpy>=1.17
+  - numpy>=1.19
   - pillow>=6.2
   - pygobject
   - pyparsing

lib/matplotlib/__init__.py

@@ -196,7 +196,7 @@ def _check_versions():
             ("cycler", "0.10"),
             ("dateutil", "2.7"),
             ("kiwisolver", "1.0.1"),
-            ("numpy", "1.17"),
+            ("numpy", "1.19"),
             ("pyparsing", "2.2.1"),
     ]:
         module = importlib.import_module(modname)

lib/matplotlib/tests/test_axes.py

@@ -1025,19 +1025,13 @@ def test_fill_between_interpolate_nan():
     y1 = np.asarray([8, 18, np.nan, 18, 8, 18, 24, 18, 8, 18])
     y2 = np.asarray([18, 11, 8, 11, 18, 26, 32, 30, np.nan, np.nan])
 
-    # NumPy <1.19 issues warning 'invalid value encountered in greater_equal'
-    # for comparisons that include nan.
-    with np.errstate(invalid='ignore'):
-        greater2 = y2 >= y1
-        greater1 = y1 >= y2
-
     fig, ax = plt.subplots()
 
     ax.plot(x, y1, c='k')
     ax.plot(x, y2, c='b')
-    ax.fill_between(x, y1, y2, where=greater2, facecolor="green",
+    ax.fill_between(x, y1, y2, where=y2 >= y1, facecolor="green",
                     interpolate=True, alpha=0.5)
-    ax.fill_between(x, y1, y2, where=greater1, facecolor="red",
+    ax.fill_between(x, y1, y2, where=y1 >= y2, facecolor="red",
                     interpolate=True, alpha=0.5)
 
 

requirements/testing/minver.txt

@@ -2,7 +2,7 @@
 
 cycler==0.10
 kiwisolver==1.0.1
-numpy==1.17.0
+numpy==1.19.0
 packaging==20.0
 pillow==6.2.0
 pyparsing==2.2.1

setup.py

@@ -308,15 +308,15 @@ def make_release_tree(self, base_dir, files):
     python_requires='>={}'.format('.'.join(str(n) for n in py_min_version)),
     setup_requires=[
         "certifi>=2020.06.20",
-        "numpy>=1.17",
+        "numpy>=1.19",
         "setuptools_scm>=4",
         "setuptools_scm_git_archive",
     ],
     install_requires=[
         "cycler>=0.10",
         "fonttools>=4.22.0",
         "kiwisolver>=1.0.1",
-        "numpy>=1.17",
+        "numpy>=1.19",
         "packaging>=20.0",
         "pillow>=6.2.0",
         "pyparsing>=2.2.1,<3.0.0",