main function now async

.gitignore

@@ -3,4 +3,6 @@
 # PyCharm:
 /.idea/
 # Distribution / packaging:
-*.egg-info/
+*.egg-info/
+# Python cache:
+__pycache__/

src/stocksymbolscraper/__main__.py

@@ -8,7 +8,7 @@ from pathlib import Path
 from . import get_all_data, log
 
 
-def main() -> None:
+async def main() -> None:
     parser = ArgumentParser(description="Scrape all stock symbols")
     parser.add_argument(
         '-v', '--verbose',
@@ -29,7 +29,7 @@ def main() -> None:
     if args.verbose:
         log.setLevel(logging.DEBUG)
 
-    data = asyncio.run(get_all_data(args.sequential))
+    data = await get_all_data(args.sequential)
 
     if args.to_file is None:
         csv.writer(sys.stdout).writerows(data)
@@ -39,4 +39,4 @@ def main() -> None:
 
 
 if __name__ == '__main__':
-    main()
+    asyncio.run(main())