not sure what's wrong

gistfile1.txt

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> traceback >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

self = <pypy.module.micronumpy.test.test_compile.TestRunner object at 0x50c04d0>

    def test_slice(self):
        interp = self.run("""
            a = [1,2,3,4]
            b = a -> :
            b -> 3
>           """)
        assert interp.results[0].value == 4
    
    def test_slice_step(self):

pypy/module/micronumpy/test/test_compile.py:182: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <pypy.module.micronumpy.test.test_compile.TestRunner object at 0x50c04d0>
code = '\n        a = [1,2,3,4]\n        b = a -> :\n        b -> 3\n        '

    def run(self, code):
        interp = numpy_compile(code)
        space = FakeSpace()
>       interp.run(space)

pypy/module/micronumpy/test/test_compile.py:91: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <pypy.module.micronumpy.compile.InterpreterState object at 0x511dd50>
space = <pypy.module.micronumpy.compile.FakeSpace object at 0x50c0450>

    def run(self, space):
        self.space = space
        for stmt in self.code.statements:
>           stmt.execute(self)

pypy/module/micronumpy/compile.py:237: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = 'b' = (v(a) -> slice(0,-1,1))
interp = <pypy.module.micronumpy.compile.InterpreterState object at 0x511dd50>

    def execute(self, interp):
>       interp.variables[self.name] = self.expr.execute(interp)

pypy/module/micronumpy/compile.py:259: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = (v(a) -> slice(0,-1,1))
interp = <pypy.module.micronumpy.compile.InterpreterState object at 0x511dd50>

    def execute(self, interp):
        w_lhs = self.lhs.execute(interp)
        if isinstance(self.rhs, SliceConstant):
            w_rhs = self.rhs.wrap(interp.space)
        else:
            w_rhs = self.rhs.execute(interp)
        if not isinstance(w_lhs, BaseArray):
            # scalar
            dtype = get_dtype_cache(interp.space).w_float64dtype
            w_lhs = scalar_w(interp.space, dtype, w_lhs)
        assert isinstance(w_lhs, BaseArray)
        if self.name == '+':
            w_res = w_lhs.descr_add(interp.space, w_rhs)
        elif self.name == '*':
            w_res = w_lhs.descr_mul(interp.space, w_rhs)
        elif self.name == '-':
            w_res = w_lhs.descr_sub(interp.space, w_rhs)
        elif self.name == '->':
            assert not isinstance(w_rhs, Scalar)
            if isinstance(w_rhs, FloatObject):
                w_rhs = IntObject(int(w_rhs.floatval))
            assert isinstance(w_lhs, BaseArray)
>           w_res = w_lhs.descr_getitem(interp.space, w_rhs)

pypy/module/micronumpy/compile.py:321: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <pypy.module.micronumpy.interp_numarray.W_NDimArray object at 0x5a37d90>
space = <pypy.module.micronumpy.compile.FakeSpace object at 0x50c0450>
w_idx = <pypy.module.micronumpy.compile.SliceObject object at 0x4be6810>

    def descr_getitem(self, space, w_idx):
        if (isinstance(w_idx, BaseArray) and w_idx.shape == self.shape and
            w_idx.find_dtype().is_bool_type()):
            return self.getitem_filter(space, w_idx)
>       if self._single_item_result(space, w_idx):

pypy/module/micronumpy/interp_numarray.py:453: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <pypy.module.micronumpy.interp_numarray.W_NDimArray object at 0x5a37d90>
space = <pypy.module.micronumpy.compile.FakeSpace object at 0x50c0450>
w_idx = <pypy.module.micronumpy.compile.SliceObject object at 0x4be6810>

    @jit.unroll_safe
    def _single_item_result(self, space, w_idx):
        """ The result of getitem/setitem is a single item if w_idx
            is a list of scalars that match the size of shape
            """
        if space.isinstance_w(w_idx, space.w_str):
            return False
        shape_len = len(self.shape)
        if space.isinstance_w(w_idx, space.w_tuple):
            for w_item in space.fixedview(w_idx):
                if (space.isinstance_w(w_item, space.w_slice) or
                    space.is_w(w_item, space.w_None)):
                    return False
        elif space.is_w(w_idx, space.w_None):
            return False
        if shape_len == 0:
            raise OperationError(space.w_IndexError, space.wrap(
                "0-d arrays can't be indexed"))
        if shape_len == 1:
            if space.isinstance_w(w_idx, space.w_int):
                return True
    
            try:
>               value = space.int_w(space.index(w_idx))

pypy/module/micronumpy/interp_numarray.py:355: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <pypy.module.micronumpy.compile.FakeSpace object at 0x50c0450>
w_obj = <pypy.module.micronumpy.compile.SliceObject object at 0x4be6810>

    def index(self, w_obj):
>       return self.wrap(self.int_w(w_obj))

pypy/module/micronumpy/compile.py:135: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <pypy.module.micronumpy.compile.FakeSpace object at 0x50c0450>
w_obj = <pypy.module.micronumpy.compile.SliceObject object at 0x4be6810>

    def int_w(self, w_obj):
        if isinstance(w_obj, IntObject):
            return w_obj.intval
        elif isinstance(w_obj, FloatObject):
            return int(w_obj.floatval)
        elif isinstance(w_obj, SliceObject):
>           raise OperationError(self.w_TypeError, self.wrap("slice."))

pypy/module/micronumpy/compile.py:131: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = OperationError(), w_type = None
w_value = <pypy.module.micronumpy.compile.StringObject object at 0x4be6910>, tb = None

    def __init__(self, w_type, w_value, tb=None):
        if not we_are_translated() and w_type is None:
            from pypy.tool.error import FlowingError
>           raise FlowingError(w_value)
E           FlowingError: <pypy.module.micronumpy.compile.StringObject object at 0x4be6910>

pypy/interpreter/error.py:26: FlowingError
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entering PDB >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> /home/timo/coding/pypy/pypy/interpreter/error.py(26)__init__()
-> raise FlowingError(w_value)