refactor: Tweak full_chain_odd.py (acts-project#3035)

- shuffle imports
- shuffle constants
- output directory argparse parameter

Examples/Scripts/Python/full_chain_odd.py

@@ -1,5 +1,11 @@
 #!/usr/bin/env python3
-import os, argparse, pathlib, acts, acts.examples
+
+import os
+import argparse
+import pathlib
+
+import acts
+import acts.examples
 from acts.examples.simulation import (
     addParticleGun,
     MomentumConfig,
@@ -29,12 +35,20 @@
 )
 from common import getOpenDataDetectorDirectory
 from acts.examples.odd import getOpenDataDetector
-import acts.examples.edm4hep
 
-parser = argparse.ArgumentParser(description="Full chain with the OpenDataDetector")
 
-parser.add_argument("--events", "-n", help="Number of events", type=int, default=100)
+u = acts.UnitConstants
+
 
+parser = argparse.ArgumentParser(description="Full chain with the OpenDataDetector")
+parser.add_argument(
+    "--output",
+    "-o",
+    help="Output directory",
+    type=pathlib.Path,
+    default=pathlib.Path.cwd() / "odd_output",
+)
+parser.add_argument("--events", "-n", help="Number of events", type=int, default=100)
 parser.add_argument("--skip", "-s", help="Number of events", type=int, default=0)
 parser.add_argument("--edm4hep", help="Use edm4hep inputs", type=pathlib.Path)
 parser.add_argument(
@@ -58,13 +72,12 @@
 
 args = vars(parser.parse_args())
 
+outputDir = args["output"]
 ttbar = args["ttbar"]
 g4_simulation = args["geant4"]
 ambiguity_MLSolver = args["MLSolver"]
 seedFilter_ML = args["MLSeedFilter"]
-u = acts.UnitConstants
 geoDir = getOpenDataDetectorDirectory()
-outputDir = pathlib.Path.cwd() / "odd_output"
 # acts.examples.dump_args_calls(locals())  # show python binding calls
 
 oddMaterialMap = geoDir / "data/odd-material-maps.root"
@@ -86,6 +99,8 @@
 )
 
 if args["edm4hep"]:
+    import acts.examples.edm4hep
+
     edm4hepReader = acts.examples.edm4hep.EDM4hepReader(
         inputPath=str(args["edm4hep"]),
         inputSimHits=[