Add support for the project section (PEP 621)

.github/workflows/downstream.yml

@@ -1,9 +1,11 @@
 name: Poetry Downstream Tests
 
 on:
-  pull_request: {}
-  push:
-    branches: [main]
+  workflow_dispatch:
+# TODO: enable again after updating Poetry to use poetry-core 2.0.0
+#  pull_request: {}
+#  push:
+#    branches: [main]
 
 jobs:
   tests:

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "poetry-core"
-version = "1.9.0"
+version = "2.0.0.dev0"
 description = "Poetry PEP 517 Build Backend"
 authors = ["Sébastien Eustace <sebastien@eustace.io>"]
 license = "MIT"

src/poetry/core/__init__.py

@@ -7,7 +7,7 @@
 
 # this cannot presently be replaced with importlib.metadata.version as when building
 # itself, poetry-core is not available as an installed distribution.
-__version__ = "1.9.0"
+__version__ = "2.0.0.dev0"
 
 __vendor_site__ = (Path(__file__).parent / "_vendor").as_posix()