Started to add a CLI to the package

case_study/__main__.py

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+import argparse
+import importlib.metadata
+from case_study.case import Cases, Case, Results
+
+
+def cli_main():
+    """Provide a Command Line Interface for sim-explorer.
+
+    `see Python tutorial for working with argparse <https://docs.python.org/3/howto/argparse.html>`_
+    """
+    __version__ = importlib.metadata.version("case_study")
+    parser = argparse.ArgumentParser(prog="case_study")
+    parser.add_argument("-V", "--version", action="version", version=__version__)
+    parser.add_argument("cases", type=str, help="The sim-explorer specification file.")
+    parser.add_argument("--info", action="store_true", help="Display the structure of the defined cases.")    
+    parser.add_argument("--run", type=str, help="Run a single case.")
+    parser.add_argument("--Run", type=str, help="Run a case and all its sub-cases.")
+    args = parser.parse_args()
+    cases = Cases( args.cases)
+    print("ARGS", args)
+    if not isinstance(case, Cases):
+        print(f"Instantiation of {args.cases} not successfull")
+    if args.info is not None:
+        print(cases.info())
+    elif args.run is not None:
+        case = cases.case_by_name( args.run)
+        if not isinstance(case, Case):
+            print(f"Case {args.case} not found in {args.cases}")
+        case.run()
+    elif args.Run is not None:
+        case = cases.case_by_name( args.Run)
+        if not isinstance(case, Case):
+            print(f"Case {args.case} not found in {args.cases}")
+        for c in case.iter():
+            c.run()
+
+
+if __name__ == "__main__":
+    cli_main()

docs/source/CHANGELOG.rst

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+Change log
+==========
+
+v.0.1:
+   Basic version published on dnv-opensource