TINKERPOP-3199 Updated build system to work with setuptools>=60

Moved from setup.py and setup.cfg to pyproject.toml to conform to
current Python build setup. Version needs to be manually set now as
scripts aren't allowed to run during build process. Decided this was
best for now but could move to setuptools-scm later to make it more
automated like it was before.

Author: kenhuuu

docs/src/dev/developer/release.asciidoc

@@ -147,6 +147,7 @@ deployment.
 . `docker/build.sh -t -i -n`
 . `bin/publish-docs.sh <username>` - note that under a release candidate the documentation is published as SNAPSHOT
 . `mvn versions:set -DnewVersion=xx.yy.zz -DgenerateBackupPoms=false` to update the project files to reference a non-SNAPSHOT version
+.. Manually update the `__version__` for `gremlin-python` in `gremlin-python/src/main/python/gremlin_python/__init__.py`
 . `mvn clean install -DskipTests` to update GLV versions
 .. Review `Gremlin.Net.csproj`, `Gremlin.Net.Template.csproj` and `Gremlin.Net.Template.nuspec` in `gremlin-dotnet`
 .. Review `package.json` and `package-lock.json` in `gremlin-javascript` and in `gremlint`
@@ -156,6 +157,7 @@ deployment.
 . `git tag -a -m "TinkerPop xx.yy.zz release" xx.yy.zz` and `git push --tags`
 . `mvn clean install`
 . `mvn versions:set -DnewVersion=xx.yy.zz-SNAPSHOT -DgenerateBackupPoms=false` to go back to SNAPSHOT
+.. Manually update the `__version__` for `gremlin-python` in `gremlin-python/src/main/python/gremlin_python/__init__.py` to a dev version like `xx.yy.zz.dev1`
 . `mvn clean install -DskipTests` to update GLV versions
 .. Review `Gremlin.Net.csproj`, `Gremlin.Net.Template.csproj` and `Gremlin.Net.Template.nuspec` in `gremlin-dotnet`
 .. Review `package.json` and `package-lock.json` in `gremlin-javascript` and in `gremlint`

gremlin-python/docker-compose.yml

@@ -62,7 +62,6 @@ services:
       - GREMLIN_SERVER_URL_HTTP=http://gremlin-server-test-python:{}/
       - GREMLIN_SERVER_BASIC_AUTH_URL_HTTP=https://gremlin-server-test-python:{}/
       - KRB_HOSTNAME=${KRB_HOSTNAME:-gremlin-server-test}
-      - VERSION=${VERSION}
       - GREMLIN_SOCKET_SERVER_URL=ws://gremlin-socket-server-python:{}/gremlin
       - GREMLIN_SOCKET_SERVER_CONFIG_PATH=/python_app/gremlin-socket-server/conf/test-ws-gremlin.yaml
     working_dir: /python_app
@@ -71,9 +70,9 @@ services:
       && echo 'password' | kinit stephen
       && klist
       && pip install wheel radish-bdd PyHamcrest aenum isodate kerberos
-      && python3 ./setup.py build
-      && python3 ./setup.py test
-      && python3 ./setup.py install
+      && pip install -e .[test]
+      && pytest
+      && pip install .
       && radish -f dots -e -t -b ./radish ./gremlin-test --user-data='serializer=application/vnd.gremlin-v3.0+json'
       && radish -f dots -e -t -b ./radish ./gremlin-test --user-data='serializer=application/vnd.graphbinary-v1.0';
       EXIT_CODE=$$?; chown -R `stat -c "%u:%g" .` .; exit $$EXIT_CODE"
@@ -87,10 +86,8 @@ services:
     volumes:
       - ${PACKAGE_DIR:-./src/main/python}:/python_package
     working_dir: /python_package
-    environment:
-      - VERSION=${VERSION}
     command: >
-      bash -c "python3 setup.py sdist bdist_wheel;
+      bash -c "pip install build && python -m build;
       EXIT_CODE=$$?; chown -R `stat -c "%u:%g" .` .; exit $$EXIT_CODE"
 
   gremlin-socket-server:

gremlin-python/pom.xml

@@ -123,9 +123,7 @@ limitations under the License.
                                 </configuration>
                             </execution>
                             <!--
-                            build/package python source distribution and wheel archive. the version is bound to an
-                            environment variable that gets used in setup.py to dynamically construct a module
-                            __version__file
+                            build/package python source distribution and wheel archive.
                              -->
                             <execution>
                                 <id>package-py</id>
@@ -137,7 +135,6 @@ limitations under the License.
                                     <target>
                                         <exec executable="docker" failonerror="true">
                                             <env key="PACKAGE_DIR" value="${project.build.directory}/python-packaged"/>
-                                            <env key="VERSION" value="${project.version}"/>
                                             <env key="PYTHONPATH" value=""/>
                                             <arg line="compose up --build --abort-on-container-exit gremlin-python-package"/>
                                         </exec>
@@ -168,7 +165,6 @@ limitations under the License.
                                     <skip>${skipTests}</skip>
                                     <target>
                                         <exec executable="docker" failonerror="true">
-                                            <env key="VERSION" value="${project.version}"/>
                                             <env key="PYTHONPATH" value=""/>
                                             <env key="GREMLIN_SERVER" value="${project.version}"/>
                                             <env key="ABS_PROJECT_HOME" value="${project.basedir}/../"/>

gremlin-python/src/main/python/gremlin_python/__init__.py

@@ -18,3 +18,4 @@
 #
 
 __author__ = 'Marko A. Rodriguez (http://markorodriguez.com)'
+__version__ = '3.7.5.dev1'

gremlin-python/src/main/python/pyproject.toml

@@ -0,0 +1,76 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+[build-system]
+requires = ["setuptools>=60", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "gremlinpython"
+dynamic = ["version"]
+description = "Gremlin-Python for Apache TinkerPop"
+readme = {file = "README.rst", content-type = "text/x-rst"}
+license = {text = "Apache 2"}
+maintainers = [{name = "Apache TinkerPop", email = "[email protected]"}]
+requires-python = ">=3.9"
+dependencies = [
+    "nest_asyncio",
+    "aiohttp>=3.8.0,<4.0.0",
+    "aenum>=1.4.5,<4.0.0",
+    "isodate>=0.6.0,<1.0.0",
+    "async-timeout>=4.0.3,<5.0.0"
+]
+classifiers = [
+    "Intended Audience :: Developers",
+    "License :: OSI Approved :: Apache Software License",
+    "Natural Language :: English",
+    "Programming Language :: Python :: 3"
+]
+
+[project.urls]
+Homepage = "https://tinkerpop.apache.org"
+
+[project.optional-dependencies]
+kerberos = ["kerberos>=1.3.0,<2.0.0"]
+ujson = ["ujson>=2.0.0"]
+test = [
+    "pytest>=4.6.4,<7.2.0",
+    "radish-bdd==0.13.4",
+    "PyHamcrest>=1.9.0,<3.0.0",
+    "PyYAML>=5.3"
+]
+
+[tool.pytest.ini_options]
+addopts = "--junitxml=./python-reports/TEST-native-python.xml -sv"
+norecursedirs = [".*", "build", "dist", "CVS", "_darcs", "{arch}", "*.egg", "lib", "lib64"]
+testpaths = ["tests"]
+
+[tool.setuptools.dynamic]
+version = {attr = "gremlin_python.__version__"}
+
+[tool.setuptools.package-data]
+"*" = ["LICENSE", "NOTICE"]
+
+[tool.setuptools]
+packages = [
+    "gremlin_python",
+    "gremlin_python.driver",
+    "gremlin_python.driver.aiohttp",
+    "gremlin_python.process",
+    "gremlin_python.structure",
+    "gremlin_python.structure.io"
+]