add files to make the project as package

Author: AiroPi

pyproject.toml

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+[build-system]
+requires = ["setuptools", "wheel"]
+build-backend = "setuptools.build_meta"
+
+# [tool.pytest.ini_options]
+# testpaths = [
+#     "tests"
+# ]

requirements.txt

@@ -0,0 +1,4 @@
+flake8==4.0.1
+tox==3.25.0
+pytest==7.1.2
+mypy==0.950

requirements_dev.txt

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+[metadata]
+name = connect4
+description = play connect 4
+author = airo.pi_
+license = MIT
+license_file = LICENSE
+version = 0.0.1
+
+[options]
+packages =
+    connect4
+python_requires = >=3.10
+package_dir =
+    =src
+
+[options.extras_require]
+testing =
+    flake8>=4.0.1
+    tox>=3.25.0
+    pytest>=7.1.2
+    mypy>=0.950
+
+[options.package_data]
+connect4 = py.typed
+
+[flake8]
+max-line-length = 160

setup.cfg

@@ -0,0 +1,4 @@
+from setuptools import setup
+
+if __name__ == "__main__":
+    setup()