refactor: implement PEP 621 dynamic versioning (#3068)

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "crewai"
-version = "0.134.0"
+dynamic = ["version"]
 description = "Cutting-edge framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly, tackling complex tasks."
 readme = "README.md"
 requires-python = ">=3.10,<3.14"
@@ -117,6 +117,9 @@ torchvision = [
   { index = "pytorch", marker = "python_version < '3.13'" },
 ]
 
+[tool.hatch.version]
+path = "src/crewai/__init__.py"
+
 [build-system]
 requires = ["hatchling"]
 build-backend = "hatchling.build"

src/crewai/__init__.py

@@ -31,4 +31,5 @@ __all__ = [
     "Knowledge",
     "TaskOutput",
     "LLMGuardrail",
+    "__version__",
 ]

tests/cli/test_version.py

@@ -0,0 +1,17 @@
+"""Test for version management."""
+
+from crewai import __version__
+from crewai.cli.version import get_crewai_version
+
+
+def test_dynamic_versioning_consistency():
+    """Test that dynamic versioning provides consistent version across all access methods."""
+    cli_version = get_crewai_version()
+    package_version = __version__
+
+    # Both should return the same version string
+    assert cli_version == package_version
+
+    # Version should not be empty
+    assert package_version is not None
+    assert len(package_version.strip()) > 0