[python] Switch build backend to poetry-core

This is more efficient and allows for seamless use of the package in
e.g. tox

Signed-off-by: Stephen Finucane <stephen@that.guru>

Author: stephenfin

modules/openapi-generator/src/main/resources/python/pyproject.mustache

@@ -1,3 +1,7 @@
+[build-system]
+requires = ["poetry-core>=2.0.0"]
+build-backend = "poetry.core.masonry.api"
+
 [project]
 name = "{{{packageName}}}"
 version = "{{{packageVersion}}}"
@@ -11,7 +15,6 @@ license = { text = "{{{licenseInfo}}}" }
 readme = "README.md"
 keywords = ["OpenAPI", "OpenAPI-Generator", "{{{appName}}}"]
 requires-python = ">=3.9"
-
 dependencies = [
 {{^async}}
   "urllib3 (>=2.1.0,<3.0.0)",
@@ -41,9 +44,6 @@ dependencies = [
 [project.urls]
 Repository = "https://{{{gitHost}}}/{{{gitUserId}}}/{{{gitRepoId}}}"
 
-[tool.poetry]
-requires-poetry = ">=2.0"
-
 [tool.poetry.group.dev.dependencies]
 pytest = ">= 7.2.1"
 pytest-cov = ">= 2.8.1"
@@ -52,11 +52,6 @@ flake8 = ">= 4.0.0"
 types-python-dateutil = ">= 2.8.19.14"
 mypy = ">= 1.5"
 
-
-[build-system]
-requires = ["setuptools"]
-build-backend = "setuptools.build_meta"
-
 [tool.pylint.'MESSAGES CONTROL']
 extension-pkg-whitelist = "pydantic"
 

samples/client/echo_api/python/pyproject.toml

@@ -1,3 +1,7 @@
+[build-system]
+requires = ["poetry-core>=2.0.0"]
+build-backend = "poetry.core.masonry.api"
+
 [project]
 name = "openapi_client"
 version = "1.0.0"
@@ -9,7 +13,6 @@ license = { text = "Apache 2.0" }
 readme = "README.md"
 keywords = ["OpenAPI", "OpenAPI-Generator", "Echo Server API"]
 requires-python = ">=3.9"
-
 dependencies = [
   "urllib3 (>=2.1.0,<3.0.0)",
   "python-dateutil (>=2.8.2)",
@@ -20,9 +23,6 @@ dependencies = [
 [project.urls]
 Repository = "https://github.com/GIT_USER_ID/GIT_REPO_ID"
 
-[tool.poetry]
-requires-poetry = ">=2.0"
-
 [tool.poetry.group.dev.dependencies]
 pytest = ">= 7.2.1"
 pytest-cov = ">= 2.8.1"
@@ -31,11 +31,6 @@ flake8 = ">= 4.0.0"
 types-python-dateutil = ">= 2.8.19.14"
 mypy = ">= 1.5"
 
-
-[build-system]
-requires = ["setuptools"]
-build-backend = "setuptools.build_meta"
-
 [tool.pylint.'MESSAGES CONTROL']
 extension-pkg-whitelist = "pydantic"
 

samples/openapi3/client/petstore/python/pyproject.toml

@@ -1,3 +1,7 @@
+[build-system]
+requires = ["poetry-core>=2.0.0"]
+build-backend = "poetry.core.masonry.api"
+
 [project]
 name = "petstore_api"
 version = "1.0.0"
@@ -9,7 +13,6 @@ license = { text = "Apache-2.0" }
 readme = "README.md"
 keywords = ["OpenAPI", "OpenAPI-Generator", "OpenAPI Petstore"]
 requires-python = ">=3.9"
-
 dependencies = [
   "urllib3 (>=2.1.0,<3.0.0)",
   "python-dateutil (>=2.8.2)",
@@ -22,9 +25,6 @@ dependencies = [
 [project.urls]
 Repository = "https://github.com/GIT_USER_ID/GIT_REPO_ID"
 
-[tool.poetry]
-requires-poetry = ">=2.0"
-
 [tool.poetry.group.dev.dependencies]
 pytest = ">= 7.2.1"
 pytest-cov = ">= 2.8.1"
@@ -33,11 +33,6 @@ flake8 = ">= 4.0.0"
 types-python-dateutil = ">= 2.8.19.14"
 mypy = ">= 1.5"
 
-
-[build-system]
-requires = ["setuptools"]
-build-backend = "setuptools.build_meta"
-
 [tool.pylint.'MESSAGES CONTROL']
 extension-pkg-whitelist = "pydantic"