Merge 3eb6f8b into 33b561b

README.rst

@@ -46,6 +46,17 @@ Added indicies are filled with None by default.
 >>> l
 [None, None, 'C', None, None]
 
+However, you can specify initial values to the list just like in defaultdict.
+
+>>> l = defaultlist(None, [123, 'abc', 'qwerty'])
+>>> l
+[123, 'abc', 'qwerty']
+>>> l[8] = "C"
+>>> l
+[123, 'abc', 'qwerty', None, None, None, None, None, 'C']
+>>> l[4]
+>>>
+
 Slices and negative indicies are supported likewise
 
 >>> l[1:4]

defaultlist.py

@@ -13,6 +13,17 @@
 >>> l
 [None, None, 'C', None, None]
 
+However, you can specify initial values to the list just like in defaultdict.
+
+>>> l = defaultlist(None, [123, 'abc', 'qwerty'])
+>>> l
+[123, 'abc', 'qwerty']
+>>> l[8] = "C"
+>>> l
+[123, 'abc', 'qwerty', None, None, None, None, None, 'C']
+>>> l[4]
+>>>
+
 Slices and negative indicies are supported likewise
 
 >>> l[1:4]
@@ -70,7 +81,7 @@
 
 class defaultlist(list):
 
-    def __init__(self, factory=None):
+    def __init__(self, factory=None, *args, **kwargs):
         """
         List extending automatically to the maximum requested length.
 
@@ -79,6 +90,7 @@ def __init__(self, factory=None):
             factory: Function called for every missing index.
         """
         self.__factory = factory or defaultlist.__nonefactory
+	list.__init__(self, *args, **kwargs)
 
     @staticmethod
     def __nonefactory():

tests/test_defaultdict.py

@@ -183,3 +183,19 @@ def test_len():
     eq_(len(l), 3)
     l[4]
     eq_(len(l), 5)
+
+def test_initial_data():
+    l = defaultlist(None, ['a', 'b'])
+    eq_(len(l), 2)
+    l[15] = 42
+    eq_(len(l), 16)
+    eq_(l[1], 'b')
+
+    l2 = defaultlist(None, [None, None, 1, None])
+    eq_(len(l2), 4)
+    l2[1] = 'q'
+    eq_(l2[1:3], ['q', 1])
+    eq_(l2[-1], None)
+    l2[-1] = 'last?'
+    eq_(l2[-1], 'last?')
+