feat: Add a convenient way of outputting system and dependency versio…

…ns (#425)

src/skore/__init__.py

@@ -1,13 +1,19 @@
-"""Provide the Store class for managing information in a data science project."""
+"""Configure logging and global settings."""
 
 import logging
 
 import rich.logging
 
+# Temporary, pending resolution of #424
+__version__ = "0.0.1"
+
 from skore.project import Project, load
 
+from .utils._show_versions import show_versions
+
 __all__ = [
     "load",
+    "show_versions",
     "Project",
 ]
 

src/skore/utils/__init__.py

@@ -0,0 +1 @@
+"""Various utilities to help with development."""

src/skore/utils/_show_versions.py

@@ -0,0 +1,86 @@
+"""
+Utility methods to print system info for debugging.
+
+adapted from :func:`sklearn.show_versions`
+"""
+
+import platform
+import sys
+
+from .. import __version__
+
+
+def _get_sys_info():
+    """System information.
+
+    Returns
+    -------
+    sys_info : dict
+        system and Python version information
+
+    """
+    python = sys.version.replace("\n", " ")
+
+    blob = [
+        ("python", python),
+        ("executable", sys.executable),
+        ("machine", platform.platform()),
+    ]
+
+    return dict(blob)
+
+
+def _get_deps_info():
+    """Overview of the installed version of main dependencies.
+
+    This function does not import the modules to collect the version numbers
+    but instead relies on standard Python package metadata.
+
+    Returns
+    -------
+    deps_info: dict
+        version information on relevant Python libraries
+
+    """
+    deps = [
+        "pip",
+        "setuptools",
+        "diskcache",
+        "fastapi",
+        "rich",
+        "skops",
+        "uvicorn",
+    ]
+
+    deps_info = {
+        "skore": __version__,
+    }
+
+    from importlib.metadata import PackageNotFoundError, version
+
+    for modname in deps:
+        try:
+            deps_info[modname] = version(modname)
+        except PackageNotFoundError:
+            deps_info[modname] = None
+    return deps_info
+
+
+def show_versions():
+    """Print useful debugging information.
+
+    Examples
+    --------
+    >>> from skore import show_versions
+    >>> show_versions()
+    """
+    sys_info = _get_sys_info()
+    deps_info = _get_deps_info()
+
+    print("\nSystem:")  # noqa: T201
+    for k, stat in sys_info.items():
+        print(f"{k:>10}: {stat}")  # noqa: T201
+
+    print("\nPython dependencies:")  # noqa: T201
+    for k, stat in deps_info.items():
+        print(f"{k:>13}: {stat}")  # noqa: T201