chardet --version (return code: 0)
chardet 2.3.0
chardet --help (return code: 0)
usage: chardet [-h] [--version] [input [input ...]]
Takes one or more file paths and reports their detected encodings
positional arguments:
input File whose encoding we would like to determine. (default: [<open
file '<stdin>', mode 'r' at 0x7f3e9da210c0>])
optional arguments:
-h, --help show this help message and exit
--version show program's version number and exit