switch to getting version using package metadata

.gitattributes

@@ -1 +0,0 @@
-openfecli/_version.py export-subst

.gitignore

@@ -158,6 +158,3 @@ cython_debug/
 
 # vim
 *.swp
-
-# versioningit
-openfecli/_version.py

MANIFEST.in

@@ -1,2 +0,0 @@
-include versioneer.py
-include openfecli/_version.py

openfe/__init__.py

@@ -21,5 +21,5 @@ from .setup import (
 from . import orchestration
 from . import analysis
 
-from openfecli import _version
-__version__ = _version.__version__
+from importlib.metadata import version
+__version__ = version("openfe")

openfecli/__init__.py

@@ -4,5 +4,5 @@
 from .plugins import OFECommandPlugin
 from . import commands
 
-from . import _version
-__version__ = _version.__version__
+from importlib.metadata import version
+__version__ = version("openfe")

pyproject.toml

@@ -57,7 +57,6 @@ ignore_missing_imports = true
 
 [tool.coverage.run]
 omit = [
-    "*/_version.py",
     "*/tests/dev/*py",
 ]
 
@@ -82,6 +81,3 @@ distance-dirty = "{base_version}+{distance}.{vcs}{rev}.dirty"
 method = "git" 
 match = ["*"]
 default-tag = "0.0.0"
-
-[tool.versioningit.write]
-file = "openfecli/_version.py"