update

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

@@ -13,7 +13,7 @@
 from typing import List, Optional
 
 from mathics.core.atoms import String
-from mathics.core.base import Builtin
+from mathics.core.builtin import Builtin
 from mathics.core.convert.expression import to_mathics_list
 
 availableLocales = Locale.getAvailableLocales()

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)