Fix IndexError in commands.py with just "mila"

Signed-off-by: Fabrice Normandin <[email protected]>

milatools/cli/commands.py

@@ -64,19 +64,20 @@ def main():
         print("ERROR:", f"{err}", file=sys.stderr)
     except Exception:
         print(T.red(traceback.format_exc()), file=sys.stderr)
+        command = sys.argv[1] if len(sys.argv) > 1 else None
         options = {
-            "labels": ",".join([sys.argv[1], mversion]),
+            "labels": ",".join([command, mversion] if command else [mversion]),
             "template": "bug_report.md",
-            "title": f"[v{mversion}] Issue running the command `mila "
-            f"{sys.argv[1]}`",
+            "title": f"[v{mversion}] Issue running the command "
+            + (f"`mila {command}`" if command else "`mila`"),
         }
         github_issue_url = (
             f"https://github.com/mila-iqia/milatools/issues/new?{urlencode(options)}"
         )
         print(
             T.bold_yellow(
                 f"An error occured during the execution of the command "
-                f"`{sys.argv[1]}`. "
+                f"`{command}`. "
             )
             + T.yellow(
                 "Please try updating milatools by running\n"
@@ -107,10 +108,7 @@ def mila():
         help="Milatools version",
     )
 
-    subparsers = parser.add_subparsers(
-        required=True,
-        # parser_class=ArgumentParser,
-    )
+    subparsers = parser.add_subparsers()
 
     # ----- mila docs ------