Fix CI test suite and and remove Python 2.7 support

.github/workflows/main.yml

@@ -24,18 +24,15 @@ jobs:
         julia-version:
           - '1.0'
           - '1.6'
-          - '~1.7.0-rc1'
-          - 'nightly'
+          - '1.7'
+          - '1.8'
         exclude:
           - os: ubuntu-latest
             architecture: x86
           - os: macos-latest
             architecture: x86
           - os: macos-latest
             julia-version: '1.6'
-          - os: windows-latest
-            architecture: x86
-            python-version: '3.10'  # not added yet?
           - os: windows-latest
             julia-version: '1.6'
           - os: macos-latest
@@ -56,19 +53,11 @@ jobs:
             architecture: x64
             python-version: '3.8'
             julia-version: '1'
-          # Python 2.7 (TODO: drop):
-          - os: ubuntu-latest
-            architecture: x64
-            python-version: '2.7'
-            julia-version: '1'
-          - os: windows-latest
-            architecture: x64
-            python-version: '2.7'
-            julia-version: '1'
       fail-fast: false
-    name: Test ${{ matrix.os }} ${{ matrix.architecture }}
-      Python ${{ matrix.python-version }}
-      Julia ${{ matrix.julia-version }}
+    name: Test 
+      py${{ matrix.python-version }}
+      jl${{ matrix.julia-version }}
+      ${{ matrix.os }} ${{ matrix.architecture }}
     steps:
       - uses: actions/checkout@v1
       - name: Setup python

docs/source/index.rst

@@ -5,9 +5,9 @@ Welcome to PyJulia’s documentation!
 
 Experimenting with developing a better interface to
 `Julia language <https://julialang.org/>`_ that works with
-`Python <https://www.python.org/>`_ 2 & 3 and Julia v1.0+.
+`Python <https://www.python.org/>`_ 3 and Julia v1.0+.
 
-PyJulia is tested against Python versions 2.7, 3.5, 3.6, and 3.7.
+PyJulia is tested against Python versions 3.5+
 
 .. toctree::
    :maxdepth: 2

setup.py

@@ -59,8 +59,6 @@ def pyload(path):
 
         # Specify the Python versions you support here. In particular, ensure
         # that you indicate whether you support Python 2, Python 3 or both.
-        'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
@@ -79,6 +77,7 @@ def pyload(path):
       packages=find_packages("src"),
       package_dir={"": "src"},
       package_data={"julia": ["*.jl"]},
+      python_requires=">=3.4",
       extras_require={
           # Update `ci/test-upload/tox.ini` when "test" is changed:
           "test": [

src/julia/libjulia.py

@@ -216,12 +216,6 @@ def __init__(self, libjulia_path, bindir, sysimage):
                 'Julia library ("libjulia") not found! {}'.format(libjulia_path)
             )
 
-        # fixes a specific issue with python 2.7.13
-        # ctypes.windll.LoadLibrary refuses unicode argument
-        # http://bugs.python.org/issue29294
-        if sys.version_info >= (2, 7, 13) and sys.version_info < (2, 7, 14):
-            libjulia_path = libjulia_path.encode("ascii")
-
         with self._pathhack():
             self.libjulia = ctypes.PyDLL(libjulia_path, ctypes.RTLD_GLOBAL)
 

src/julia/magic.py

@@ -19,6 +19,7 @@
 
 from __future__ import absolute_import, print_function
 
+import inspect
 import sys
 import warnings
 
@@ -48,8 +49,7 @@ def no_var_expand(f):
 
 @magics_class
 class JuliaMagics(Magics):
-    """A set of magics useful for interactive work with Julia.
-    """
+    """A set of magics useful for interactive work with Julia."""
 
     highlight = Bool(
         True,
@@ -109,12 +109,20 @@ def julia(self, line, cell=None):
         """
         src = unicode(line if cell is None else cell)
 
+        caller_frame = inspect.currentframe()
+        if caller_frame is None:
+            caller_frame = sys._getframe(3)  # May not work.
+
         # We assume the caller's frame is the first parent frame not in the
         # IPython module. This seems to work with IPython back to ~v5, and
         # is at least somewhat immune to future IPython internals changes,
         # although by no means guaranteed to be perfect.
-        caller_frame = sys._getframe(3)
-        while caller_frame.f_globals.get("__name__").startswith("IPython"):
+        while any(
+            (
+                caller_frame.f_globals.get("__name__").startswith("IPython"),
+                caller_frame.f_globals.get("__name__").startswith("julia"),
+            )
+        ):
             caller_frame = caller_frame.f_back
 
         return_value = "nothing" if src.strip().endswith(";") else ""

src/julia/pytestplugin.py

@@ -125,7 +125,7 @@ def pytest_configure(config):
 
 @pytest.fixture(scope="session")
 def julia(request):
-    """ pytest fixture for providing a `Julia` instance. """
+    """pytest fixture for providing a `Julia` instance."""
     if not request.config.getoption("julia"):
         pytest.skip("--no-julia is given.")
 
@@ -136,7 +136,7 @@ def julia(request):
 
 @pytest.fixture(scope="session")
 def juliainfo(julia):
-    """ pytest fixture for providing `JuliaInfo` instance. """
+    """pytest fixture for providing `JuliaInfo` instance."""
     return _JULIA_INFO
 
 

src/julia/tests/conftest.py

@@ -3,7 +3,7 @@
 
 @pytest.fixture(scope="session")
 def Main(julia):
-    """ pytest fixture for providing a Julia `Main` name space. """
+    """pytest fixture for providing a Julia `Main` name space."""
     from julia import Main
 
     return Main

src/julia/tests/test_core.py

@@ -37,7 +37,7 @@ def test_call_error(julia):
 
 
 def test_call_julia_function_with_python_args(Main):
-    assert list(Main.map(Main.uppercase, array.array("u", [u"a", u"b", u"c"]))) == [
+    assert list(Main.map(Main.uppercase, array.array("u", ["a", "b", "c"]))) == [
         "A",
         "B",
         "C",
@@ -129,7 +129,7 @@ def test_getattr_submodule(Main):
 def test_star_import_julia_module(julia, tmp_path):
     # Create a Python module __pyjulia_star_import_test
     path = tmp_path / "__pyjulia_star_import_test.py"
-    path.write_text(u"from julia.Base.Enums import *")
+    path.write_text("from julia.Base.Enums import *")
     sys.path.insert(0, str(tmp_path))
 
     import __pyjulia_star_import_test

src/julia/tests/test_juliaoptions.py

@@ -18,10 +18,13 @@ def test_as_args(kwargs, args):
     assert JuliaOptions(**kwargs).as_args() == args
 
 
-@pytest.mark.parametrize("kwargs", [
-    dict(compiled_modules="invalid value"),
-    dict(bindir=123456789),
-])
+@pytest.mark.parametrize(
+    "kwargs",
+    [
+        dict(compiled_modules="invalid value"),
+        dict(bindir=123456789),
+    ],
+)
 def test_valueerror(kwargs):
     with pytest.raises(ValueError) as excinfo:
         JuliaOptions(**kwargs)

src/julia/tests/test_magic.py

@@ -125,7 +125,7 @@ def f():
         return ret
     f()
     """) == "local"
-    
+
 def test_global_scope(run_cell):
     assert run_cell("""
     x = "global"

src/julia/tests/test_runtests.py

@@ -7,7 +7,7 @@
 
 def test_runtests_failure(tmp_path):
     testfile = tmp_path / "test.py"
-    testcode = u"""
+    testcode = """
     def test_THIS_TEST_MUST_FAIL():
         assert False
     """

tox.ini

@@ -4,7 +4,7 @@ envlist = py3
 [testenv]
 deps =
     pytest-cov
-    coverage < 5
+    coverage < 6
 extras =
     test
 commands =
@@ -79,7 +79,7 @@ changedir = {toxinidir}/docs
 [testenv:style]
 deps =
     isort == 4.3.17
-    black == 19.3b0
+    black == 22.3.0
 commands =
     isort --recursive --check-only .
     black . {posargs:--check --diff}