Fix: Resolve build errors and deprecation warnings

This commit addresses several issues to ensure a clean and compliant build process.

- **Fix build error:** Corrects the "Multiple top-level packages discovered" error by explicitly configuring package discovery in `pyproject.toml`. This prevents `setuptools` from accidentally including non-source directories like `activate`.

- **Fix versioning:** Deletes the redundant `__version__.py` file to establish `pyproject.toml` as the single source of truth for the package version. This resolves conflicts where the build process was producing an incorrect version number.

- **Fix deprecation warnings:** Updates `pyproject.toml` to use a simplified SPDX license expression ("MIT") and removes the deprecated license classifier. This ensures future compatibility with `setuptools`.

These changes guarantee that the GitHub release workflow will successfully build and publish the package with the correct version.

Author: bosd

camelot/__init__.py

@@ -1,10 +1,23 @@
+import importlib.metadata
 import logging
+from typing import Optional
 
-from .__version__ import __version__  # noqa D100, F400
 from .io import read_pdf
 from .plotting import PlotMethods
 
 
+def get_version() -> Optional[str]:
+    """Retrieve the version number from package metadata."""
+    try:
+        return importlib.metadata.version("camelot-py")
+    except importlib.metadata.PackageNotFoundError:
+        # Fallback for development environments
+        return "0.0.0+unknown"
+
+
+__version__ = get_version()
+
+
 # set up logging
 logger = logging.getLogger("camelot")
 

camelot/__version__.py

@@ -12,7 +12,9 @@
 else:
     _HAS_MPL = True
 
-from . import __version__
+import importlib.metadata
+from typing import Optional
+
 from . import plot
 from . import read_pdf
 
@@ -21,6 +23,18 @@
 logger.setLevel(logging.INFO)
 
 
+def get_version() -> Optional[str]:
+    """Get the version information."""
+    try:
+        return importlib.metadata.version("camelot-py")
+    except importlib.metadata.PackageNotFoundError:
+        # Package is not installed in editable mode or in the current environment
+        return None
+
+
+__version__ = get_version() or "0.0.0+unknown"
+
+
 class Config:
     """Class method for creating a new class."""
 

camelot/cli.py

@@ -5,7 +5,7 @@ description = "PDF Table Extraction for Humans."
 authors = [
     {name = "Vinayak Mehta", email = "vmehta94@gmail.com"},
 ]
-license = {text = "MIT"}
+license = "MIT"
 readme = "README.md"
 classifiers = [
     "Development Status :: 5 - Production/Stable",
@@ -15,7 +15,6 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
-    "License :: OSI Approved :: MIT License",
 ]
 requires-python = ">=3.8"
 dependencies = [
@@ -40,6 +39,11 @@ dependencies = [
 requires = ["setuptools"]
 build-backend = "setuptools.build_meta"
 
+[tool.setuptools.packages.find]
+where = ["."]
+include = ["camelot*"]
+exclude = ["activate"]
+
 [project.urls]
 Homepage = "https://github.com/camelot-dev/camelot"
 Repository = "https://github.com/camelot-dev/camelot"