start on pyproject.toml but package discovery failing

pyproject.toml

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+[build-system]
+requires = ["setuptools>=40.8.0", "wheel"]
+build-backend = "setuptools.build_meta:__legacy__"
+
+[project]
+name = "MathText"
+packages = {find = "mathtext"}
+version = "0.0.3"
+authors = [
+  {name="Sebastian Larsen", email="[email protected]"},
+  {name="Çetin ÇAKIR", email="[email protected]"},
+  {name="Hobson Lane", email="[email protected]"},
+  ]
+description = "Natural Language Understanding (text processing) for math symbols, digits, and words with a Gradio user interface and REST API."
+readme = "README.md"
+requires-python = ">=3.7"
+license = {file = "LICENSE.md"}
+classifiers = [
+    "Programming Language :: Python :: 3",
+#    "License :: OSI Approved :: MIT License",
+    "License :: OSI Approved :: GNU Affero General Public License v3 or later (AGPLv3+)",
+    "Operating System :: OS Independent",
+]
+
+[dependencies]
+python = "^3.7"
+editdistance = "*"
+gradio = "3.14.*"
+httpx = "0.23.*"
+matplotlib = "3.6.*"
+pandas = "1.5.*"
+pandas-gbq = "0.19.*"
+pytest = "7.2.*"
+python-dotenv = "0.21.*"
+scikit-learn = "^1.2"
+spacy = "3.4.*"
+torch = "1.12.*"
+transformers = "4.24.*"
+
+# [build-system]
+# requires = ["hatchling"]
+# build-backend = "hatchling.build"
+
+[tool.poetry.dev-dependencies]
+pytest = "^7.2"
+