compatibility with Mathics 7

.github/workflows/autoblack.yml

@@ -0,0 +1,32 @@
+# GitHub Action that uses Black to reformat the Python code in an incoming pull request.
+# If all Python code in the pull request is compliant with Black then this Action does nothing.
+# Othewrwise, Black is run and its changes are committed back to the incoming pull request.
+# https://github.com/cclauss/autoblack
+
+name: autoblack
+on: [pull_request]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python 3.9
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.9
+      - name: Install click
+        run: pip install 'click==8.0.4'
+      - name: Install Black
+        run: pip install 'black==22.3.0'
+      - name: Run black --check .
+        run: black --check .
+      - name: If needed, commit black changes to the pull request
+        if: failure()
+        run: |
+          black .
+          git config --global user.name 'autoblack'
+          git config --global user.email 'rocky@users.noreply.github.com'
+          git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/$GITHUB_REPOSITORY
+          git checkout $GITHUB_HEAD_REF
+          git commit -am "fixup: Format Python code with Black"
+          git push

.github/workflows/osx.yml

@@ -0,0 +1,34 @@
+name: pymathics-language (macOS)
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: macos-latest
+    strategy:
+      matrix:
+        os: [macOS]
+        python-version: [3.8, 3.9]
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        brew install llvm@11
+        python -m pip install --upgrade pip
+        pip install pytest
+        # Can remove after next Mathics-core release
+        python -m pip install -e git+https://github.com/Mathics3/mathics-core#egg=Mathics3[full]
+    - name: Install pymathics.language
+      run: |
+        pip install -e .
+    - name: Test Mathics
+      run: |
+        make check

.github/workflows/ubuntu.yml

@@ -0,0 +1,32 @@
+name: pymathics-language (ubuntu)
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.8','3.9','3.10']
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install pytest
+        # Can remove after next Mathics-core release
+        python -m pip install -e git+https://github.com/Mathics3/mathics-core#egg=Mathics3[full]
+    - name: Install pymathics.language
+      run: |
+        pip install -e .
+    - name: Test Mathics
+      run: |
+        make check

.github/workflows/windows.yml

@@ -0,0 +1,34 @@
+name: pymathics-language (Windows)
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: windows-latest
+    strategy:
+      matrix:
+        os: [windows]
+        python-version: [ 3.8, 3.9]
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install wheel
+        pip install pytest
+        # Can remove after next Mathics-core release
+        python -m pip install -e git+https://github.com/Mathics3/mathics-core#egg=Mathics3[full]
+    - name: Install pymathics.language
+      run: |
+        pip install -e .
+    - name: Test Mathics
+      run: |
+        make check

Makefile

@@ -0,0 +1,81 @@
+# A GNU Makefile to run various tasks - compatibility for us old-timers.
+
+# Note: This makefile include remake-style target comments.
+# These comments before the targets start with #:
+# remake --tasks to shows the targets and the comments
+
+GIT2CL ?= admin-tools/git2cl
+PYTHON ?= python
+PIP ?= $(PYTHON) -m pip
+RM  ?= rm
+
+
+.PHONY: all build \
+   check clean \
+   develop dist doc doc-data \
+   pypi-setup \
+   pytest \
+   rmChangeLog \
+   test
+
+#: Default target - same as "develop"
+all: develop
+
+#: build everything needed to install
+build: pypi-setup
+	$(PYTHON) ./setup.py build
+
+#: Check Python version, and install PyPI dependencies
+pypi-setup:
+	$(PIP) install -e .
+
+#: Set up to run from the source tree
+develop: pypi-setup
+
+#: Make distirbution: wheels, eggs, tarball
+dist:
+	./admin-tools/make-dist.sh
+
+#: Install pymathics.graph
+install: pypi-setup
+	$(PYTHON) setup.py install
+
+# Run tests
+test check: pytest doctest
+
+#: Remove derived files
+clean: clean-pyc
+
+#: Remove old PYC files
+clean-pyc:
+	@find . -name "*.pyc" -type f -delete
+
+#: Run py.test tests. Use environment variable "o" for pytest options
+pytest:
+	MATHICS_CHARACTER_ENCODING="ASCII" $(PYTHON) -m pytest $(PYTEST_WORKERS) test $o
+
+
+# #: Create data that is used to in Django docs and to build TeX PDF
+# doc-data mathics/doc/tex/data: mathics/builtin/*.py mathics/doc/documentation/*.mdoc mathics/doc/documentation/images/*
+# 	$(PYTHON) mathics/test.py -ot -k
+
+#: Run tests that appear in docstring in the code.
+doctest:
+	MATHICS_CHARACTER_ENCODING="ASCII" $(PYTHON) -m mathics.docpipeline -l pymathics.language  -c "Pymathics Language" $o
+
+# #: Make Mathics PDF manual
+# doc mathics.pdf: mathics/doc/tex/data
+# 	(cd mathics/doc/tex && $(MAKE) mathics.pdf)
+
+#: Remove ChangeLog
+rmChangeLog:
+	$(RM) ChangeLog || true
+
+#: Create a ChangeLog from git via git log and git2cl
+ChangeLog: rmChangeLog
+	git log --pretty --numstat --summary | $(GIT2CL) >$@
+
+
+#: Run pytest consistency and style checks
+check-consistency-and-style:
+	MATHICS_LINT=t $(PYTHON) -m pytest test/consistency-and-style

pymathics/language/__main__.py

@@ -12,8 +12,8 @@
 from icu import Locale, LocaleData
 from typing import List, Optional
 
-from mathics.builtin.base import Builtin
 from mathics.core.atoms import String
+from mathics.core.builtin import Builtin
 from mathics.core.convert.expression import to_mathics_list
 
 availableLocales = Locale.getAvailableLocales()
@@ -70,7 +70,7 @@ class Alphabet(Builtin):
 
     summary_text = "lowercase letters in an alphabet"
 
-    def apply(self, alpha: String, evaluation):
+    def eval(self, alpha: String, evaluation):
         """Alphabet[alpha_String]"""
         alphabet_list = eval_alphabet(alpha)
         if alphabet_list is None:

pymathics/language/version.py

@@ -5,4 +5,4 @@
 # well as importing into Python. That's why there is no
 # space around "=" below.
 # fmt: off
-__version__="5.0.0"  # noqa
+__version__="7.0.0"  # noqa

setup.py

@@ -8,8 +8,8 @@
 from setuptools import setup, find_namespace_packages
 
 # Ensure user has the correct Python version
-if sys.version_info < (3, 6):
-    print("Mathics support Python 3.6 and above; you have %d.%d" % sys.version_info[:2])
+if sys.version_info < (3, 8):
+    print("Mathics support Python 3.8 and above; you have %d.%d" % sys.version_info[:2])
     sys.exit(-1)
 
 
@@ -35,7 +35,7 @@ def read(*rnames):
     version=__version__,
     packages=find_namespace_packages(include=["pymathics.*"]),
     install_requires=[
-        "Mathics3 >= 5.0.0.dev0,<5.1.0",
+        "Mathics3 >= 7.0.0.dev",
         "PyICU>=2.9",
     ],
     zip_safe=False,

test/test_language.py

@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+
+from mathics.core.load_builtin import import_and_load_builtins
+from mathics.session import MathicsSession
+
+import_and_load_builtins()
+
+session = MathicsSession(character_encoding="ASCII")
+
+
+def check_evaluation(str_expr: str, expected: str, message=""):
+    """Helper function to test that a Mathics expression against
+    its results"""
+    result = session.evaluate(str_expr).value
+
+    if message:
+        assert result == expected, f"{message}: got: {result}"
+    else:
+        assert result == expected
+
+
+def test_hello():
+    session.evaluate('LoadModule["pymathics.language"]') == "pymathics.language"
+    check_evaluation('Alphabet["es"]//Length', 33)