missing __main__, add it

charset/__main__.py

@@ -0,0 +1,90 @@
+#!/usr/bin/env python
+# -*- encoding:utf-8 -*-
+
+import sys
+import argparse
+from collections import OrderedDict
+
+from charset import Unicode, UTF8, GB18030, GBK, GB2312
+
+
+CHARSET_CLASS = OrderedDict((
+    ('gb2312', GB2312),
+    ('gbk', GBK),
+    ('gb18030', GB18030),
+    ('utf8', UTF8),
+    ('unicode', Unicode),
+))
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description='CHARSET Tool for %s' % ','.join(CHARSET_CLASS.keys()),
+        epilog='System encoding: %s' % sys.getfilesystemencoding(),
+    )
+    parser.add_argument(
+        '--encoding',
+        choices=CHARSET_CLASS.keys(),
+        required=True,
+        help='Use charset',
+    )
+    parser.add_argument(
+        '--panel',
+        help='charset panel'
+    )
+    parser.add_argument(
+        '-P',
+        action='store_true',
+        help='list panel'
+    )
+    parser.add_argument(
+        '--char',
+        action='store_true',
+        help='output character for Unicode code'
+    )
+    parser.add_argument(
+        '--code',
+        action='store_true',
+        help='output Unicode code for character'
+    )
+    parser.add_argument(
+        'target',
+        nargs='?',
+        help='input char or output file'
+    )
+
+    args = parser.parse_args()
+
+    in_encoding = out_encoding = sys.getfilesystemencoding()
+
+    charset = CHARSET_CLASS[args.encoding]()
+
+    if args.P:
+        for k, v in charset.define.items():
+            p = k[5:]
+            print('Panel %s: %s' % (p, ' - '.join(v['desc'])))
+    elif args.panel:
+        html = charset.as_html(panels=args.panel.split(','))
+        if args.target:
+            with open(args.target, 'w') as f:
+                f.write(html.encode('utf-8'))
+        else:
+            print(html.encode(out_encoding))
+    elif args.code:
+        chars = args.target.decode(in_encoding)
+        print('%s code:' % args.encoding.upper())
+        print(charset.codes(chars))
+    elif args.char:
+        if '-' in args.target:
+            codes = args.target.split('-')
+        elif ',' in args.target:
+            codes = args.target.split(',')
+        else:
+            codes = [args.target]
+        print('%s char:' % args.encoding.upper())
+        print(''.join(charset.chars(codes)))
+    else:
+        parser.print_help()
+
+if __name__ == '__main__':
+    main()