Drop the plotting module (separate package?)

.github/workflows/test.yml

@@ -36,7 +36,7 @@ jobs:
       run: |
         pip install -U pip setuptools wheel
         pip install -U git+https://github.com/zheller/flake8-quotes
-        pip install -U .[interactive,develop,gmpy,exports,plot,docs]
+        pip install -U .[interactive,develop,gmpy,exports,docs]
     - name: Install ~/.python_history
       run: touch ~/.python_history
     - name: Linting with flake8 and pylint

conftest.py

@@ -8,14 +8,6 @@
 import diofant
 
 
-try:
-    import matplotlib
-    matplotlib.rc('figure', max_open_warning=0)
-    del matplotlib
-except ImportError:
-    collect_ignore_glob = ['diofant/plotting/*.py']
-
-
 def pytest_report_header(config):
     return f"""\nDiofant version: {diofant.__version__}
 cache: {diofant.core.cache.USE_CACHE}
@@ -43,15 +35,6 @@ def _set_displayhook():
     sys.__displayhook__ = sys.displayhook  # https://bugs.python.org/26092
 
 
-@pytest.fixture(autouse=True, scope='session')
-def _enable_mpl_agg_backend():
-    try:
-        import matplotlib
-        matplotlib.use('Agg')
-    except ImportError:
-        pass
-
-
 @pytest.fixture(autouse=True)
 def _add_np(doctest_namespace):
     for sym in (diofant.symbols('a:d t x:z') +

diofant/__init__.py

@@ -102,9 +102,6 @@
                       primepi, primerange, primitive_root, primorial,
                       quadratic_residues, randprime, sieve, sqrt_mod,
                       sqrt_mod_iter, square_factor, totient, trailing)
-from .plotting import (plot, plot3d, plot3d_parametric_line,
-                       plot3d_parametric_surface, plot_backends, plot_implicit,
-                       plot_parametric)
 from .polys import (LC, LM, LT, BasePolynomialError, CoercionFailedError,
                     ComputationFailedError, DomainError, EvaluationFailedError,
                     ExactQuotientFailedError, ExtraneousFactorsError,
@@ -291,11 +288,10 @@
     'RGS_enum', 'RGS_rank', 'RGS_unrank', 'RubikGroup', 'Subset',
     'SymmetricGroup', 'alternating', 'cube', 'cyclic', 'dihedral',
     'dodecahedron', 'icosahedron', 'octahedron', 'symmetric', 'tetrahedron',
-    'plot', 'plot3d', 'plot3d_parametric_line', 'plot3d_parametric_surface',
-    'plot_backends', 'plot_implicit', 'plot_parametric', 'StrPrinter', 'ccode',
-    'dotprint', 'fcode', 'latex', 'mathematica_code', 'mathml', 'octave_code',
-    'pprint', 'pprint_use_unicode', 'pretty', 'pretty_print', 'python', 'srepr',
-    'sstr', 'sstrrepr', 'init_printing', 'ExtendedReals', 'IntegerModRing')
+    'StrPrinter', 'ccode', 'dotprint', 'fcode', 'latex', 'mathematica_code',
+    'mathml', 'octave_code', 'pprint', 'pprint_use_unicode', 'pretty',
+    'pretty_print', 'python', 'srepr', 'sstr', 'sstrrepr', 'init_printing',
+    'ExtendedReals', 'IntegerModRing')
 
 __version__ = pkg_resources.get_distribution(__name__).version
 del pkg_resources