added help messages

cbrtocbz.py

@@ -5,7 +5,6 @@ import tempfile
 from sys import argv
 from os import curdir, remove, walk
 from os.path import splitext, join
-#from glob import glob
 from typing import Final
 
 #optionally prints a message if the verbosity level is high enough
@@ -16,15 +15,15 @@ vprint.verbosity = 0
 
 def main(arguments):
     parser = argparse.ArgumentParser()
-    parser.add_argument('-e', '--ext', type=str)
-    parser.add_argument('-p', '--path', type=str)
-    parser.add_argument('-d', '--delete', action='store_true')
-    parser.add_argument('-v', action='count')
+    parser.add_argument('-e', '--ext', type=str, help='set output file extension (default "cbr")', default='cbz')
+    parser.add_argument('-p', '--path', type=str, help='output path', default='.')
+    parser.add_argument('-d', '--delete', action='store_true', help='delete source file after successful conversion')
+    parser.add_argument('-v', action='count', help='display additional information')
     parser.add_argument('files', nargs='+', type=str)
     args = parser.parse_args(arguments)
-    files = args.files
-    ext = args.ext or 'cbz'
-    delete = args.delete
+    files: Final = args.files
+    ext: Final = args.ext.lstrip('.')
+    delete: Final = args.delete
     path: Final = args.path or curdir
 
 
@@ -36,8 +35,8 @@ def main(arguments):
                 rar.extractall(dir)
                 z_f = join(path, splitext(f)[0] + '.' + ext)
                 with zipfile.ZipFile(z_f, 'x') as zip:
-                    for dirpath, dirs, files in walk(dir):
-                        for file in files:
+                    for dirpath, dirs, fs in walk(dir):
+                        for file in fs:
                             p = join(dirpath, file)
                             zip.write(p)
                 vprint('finished ' + z_f, 0)