Function is_command_valid

mssqlcli/util.py:21–36

Checks if command is recognized on machine. Used to determine installations of 'less' pager.

(command)

    return s

def is_command_valid(command):
    """
    Checks if command is recognized on machine. Used to determine installations
    of 'less' pager.
    """
    if not command:
        return False

    try:
        # call command silentyly
        with open(devnull, 'wb') as no_out:
            subprocess.call(command, stdout=no_out, stderr=no_out)
    except OSError:
        return False
    else:
        return True