def bool_list(list obj):

    """

    >>> bool_list( [] )

    False

    >>> bool_list( [1] )

    True

    >>> bool_list(None)

    False

    """

    return bool(obj)

def if_list(list obj):

    """

    >>> if_list( [] )

    False

    >>> if_list( [1] )

    True

    >>> if_list(None)

    False

    """

    if obj:

        return True

    else:

        return False

def if_list_nogil(list obj):

    """

    >>> if_list_nogil( [] )

    False

    >>> if_list_nogil( [1] )

    True

    >>> if_list_nogil(None)

    False

    """

    cdef bint result

    with nogil:

        if obj:

            result = True

        else:

            result = False

    return result

def if_list_literal(t):

    """

    >>> if_list_literal(True)

    True

    >>> if_list_literal(False)

    False

    """

    if t:

        if [1,2,3]:

            return True

        else:

            return False

    else:

        if []:

            return True

        else:

            return False

def bool_tuple(tuple obj):

    """

    >>> bool_tuple( () )

    False

    >>> bool_tuple( (1,) )

    True

    >>> bool_tuple(None)

    False

    """

    return bool(obj)

def if_tuple(tuple obj):

    """

    >>> if_tuple( () )

    False

    >>> if_tuple( (1,) )

    True

    >>> if_tuple(None)

    False

    """

    if obj:

        return True

    else:

        return False

def if_tuple_literal(t):

    """

    >>> if_tuple_literal(True)

    True

    >>> if_tuple_literal(False)

    False

    """

    if t:

        if (1,2,3):

            return True

        else:

            return False

    else:

        if ():

            return True

        else:

            return False

def bool_set(set obj):

    """

    >>> bool_set( set() )

    False

    >>> bool_set( set([1]) )

    True

    >>> bool_set(None)

    False

    """

    return bool(obj)

def if_set(set obj):

    """

    >>> if_set( set() )

    False

    >>> if_set( set([1]) )

    True

    >>> if_set(None)

    False

    """

    if obj:

        return True

    else:

        return False

def if_set_nogil(set obj):

    """

    >>> if_set_nogil( set() )

    False

    >>> if_set_nogil( set([1]) )

    True

    >>> if_set_nogil(None)

    False

    """

    cdef bint result

    with nogil:

        if obj:

            result = True

        else:

            result = False

    return result

def if_set_literal(t):

    """

    >>> if_set_literal(True)

    True

    >>> if_set_literal(False)

    False

    """

    if t:

        if {1,2,3}:

            return True

        else:

            return False

    else:

        if set():

            return True

        else:

            return False

def bool_frozenset(frozenset obj):

    """

    >>> bool_frozenset( frozenset() )

    False

    >>> bool_frozenset( frozenset([1]) )

    True

    >>> bool_frozenset(None)

    False

    """

    return bool(obj)

def if_frozenset(frozenset obj):

    """

    >>> if_frozenset( frozenset() )

    False

    >>> if_frozenset( frozenset([1]) )

    True

    >>> if_frozenset(None)

    False

    """

    if obj:

        return True

    else:

        return False

b0 = b''

b1 = b'abc'

def bool_bytes(bytes obj):

    """

    >>> bool_bytes(b0)

    False

    >>> bool_bytes(b1)

    True

    >>> bool_bytes(None)

    False

    """

    return bool(obj)

def if_bytes(bytes obj):

    """

    >>> if_bytes(b0)

    False

    >>> if_bytes(b1)

    True

    >>> if_bytes(None)

    False

    """

    if obj:

        return True

    else:

        return False

def if_bytes_literal(t):

    """

    >>> if_bytes_literal(True)

    True

    >>> if_bytes_literal(False)

    False

    """

    if t:

        if b'abc':

            return True

        else:

            return False

    else:

        if b'':

            return True

        else:

            return False

u0 = u''

u1 = u'abc'

def bool_unicode(unicode obj):

    """

    >>> bool_unicode(u0)

    False

    >>> bool_unicode(u1)

    True

    >>> bool_unicode(None)

    False

    """

    return bool(obj)

def if_unicode(unicode obj):

    """

    >>> if_unicode(u0)

    False

    >>> if_unicode(u1)

    True

    >>> if_unicode(None)

    False

    """

    if obj:

        return True

    else:

        return False

def if_unicode_literal(t):

    """

    >>> if_unicode_literal(True)

    True

    >>> if_unicode_literal(False)

    False

    """

    if t:

        if u'abc':

            return True

        else:

            return False

    else:

        if u'':

            return True

        else:

            return False