Handling of no arguments passed.

scrapthechan/cli/scraper.py

@@ -62,6 +62,10 @@ def parse_arguments(args: str) -> dict:
 					  else out_dir.groupdict()["outdir"] }
 
 def main() -> None:
+	if len(argv) == 1:
+		print(USAGE)
+		exit()
+
 	cargs = parse_common_arguments(' '.join(argv[1:]))
 	if not cargs is None:
 		if cargs["help"]: