diff --git a/builtin/builtin.go b/builtin/builtin.go
index bb4158c4..3c32d789 100644
--- a/builtin/builtin.go
+++ b/builtin/builtin.go
@@ -88,7 +88,7 @@ func init() {
"range": py.RangeType,
// "reversed": py.ReversedType,
"set": py.SetType,
- // "slice": py.SliceType,
+ "slice": py.SliceType,
"staticmethod": py.StaticMethodType,
"str": py.StringType,
// "super": py.SuperType,
diff --git a/py/slice.go b/py/slice.go
index 53b21493..827ad718 100644
--- a/py/slice.go
+++ b/py/slice.go
@@ -13,11 +13,11 @@ type Slice struct {
Step Object
}
-var SliceType = NewType("slice", `slice(stop) -> slice object
+var SliceType = NewTypeX("slice", `slice(stop) -> slice object
"slice(stop)
slice(start, stop[, step])
-Create a slice object. This is used for extended slicing (e.g. a[0:10:2]).`)
+Create a slice object. This is used for extended slicing (e.g. a[0:10:2]).`, SliceNew, nil)
// Type of this object
func (o *Slice) Type() *Type {
@@ -151,4 +151,25 @@ func (r *Slice) GetIndices(length int) (start, stop, step, slicelength int, err
return
}
+func init() {
+ SliceType.Dict["start"] = &Property{
+ Fget: func(self Object) (Object, error) {
+ selfSlice := self.(*Slice)
+ return selfSlice.Start, nil
+ },
+ }
+ SliceType.Dict["stop"] = &Property{
+ Fget: func(self Object) (Object, error) {
+ selfSlice := self.(*Slice)
+ return selfSlice.Stop, nil
+ },
+ }
+ SliceType.Dict["step"] = &Property{
+ Fget: func(self Object) (Object, error) {
+ selfSlice := self.(*Slice)
+ return selfSlice.Step, nil
+ },
+ }
+}
+
// Check interface is satisfied
diff --git a/py/tests/slice.py b/py/tests/slice.py
new file mode 100644
index 00000000..8fb84a84
--- /dev/null
+++ b/py/tests/slice.py
@@ -0,0 +1,16 @@
+# Copyright 2019 The go-python Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+doc="slice"
+a = slice(10)
+assert a.start == None
+assert a.stop == 10
+assert a.step == None
+
+a = slice(0, 10, 1)
+assert a.start == 0
+assert a.stop == 10
+assert a.step == 1
+
+doc="finished"
\ No newline at end of file
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