From da5223d4acd6c30477855934c7a6160a3106ad63 Mon Sep 17 00:00:00 2001
From: Philippe Duval <philippe@plot.ly>
Date: Wed, 31 Oct 2018 16:10:09 -0400
Subject: [PATCH 01/15] Refactor component registration.

---
 dash/development/base_component.py | 22 +++++++++++++-
 dash/resources.py                  | 47 +++++-------------------------
 2 files changed, 29 insertions(+), 40 deletions(-)

diff --git a/dash/development/base_component.py b/dash/development/base_component.py
index 44c95521ce..9172c8a79d 100644
--- a/dash/development/base_component.py
+++ b/dash/development/base_component.py
@@ -3,6 +3,25 @@
 import os
 import inspect
 from ._all_keywords import kwlist
+import keyword
+import six
+
+
+class ComponentRegistry(type):
+    """Just importing a component lib will make it be loaded on the index"""
+
+    component_registry = set()
+
+    def __new__(mcs, name, bases, attributes):
+        component = type.__new__(mcs, name, bases, attributes)
+        if name == 'Component':
+            # Don't do the base component
+            return component
+
+        module = attributes['__module__'].split('.')[0]
+        mcs.component_registry.add(module)
+
+        return component
 
 
 def is_number(s):
@@ -53,7 +72,8 @@ def wrapper(*args, **kwargs):
     return wrapper
 
 
-class Component(collections.MutableMapping):
+@six.add_metaclass(ComponentRegistry)
+class Component:
     class _UNDEFINED(object):
         def __repr__(self):
             return 'undefined'
diff --git a/dash/resources.py b/dash/resources.py
index aa1ce871d9..f12c4a99af 100644
--- a/dash/resources.py
+++ b/dash/resources.py
@@ -1,9 +1,9 @@
-from copy import copy
 import json
 import warnings
 import os
+import sys
 
-from .development.base_component import Component
+from .development.base_component import ComponentRegistry
 
 
 # pylint: disable=old-style-class
@@ -60,40 +60,15 @@ def _filter_resources(self, all_resources, dev_bundles=False):
 
     def get_all_resources(self, dev_bundles=False):
         all_resources = []
-        if self.config.infer_from_layout:
-            all_resources = (
-                self.get_inferred_resources() + self._resources
-            )
-        else:
-            all_resources = self._resources
 
-        return self._filter_resources(all_resources, dev_bundles)
-
-    def get_inferred_resources(self):
-        namespaces = []
-        resources = []
-        layout = self.layout
-
-        def extract_resource_from_component(component):
-            # pylint: disable=protected-access
-            if (isinstance(component, Component) and
-                    component._namespace not in namespaces):
+        for mod in ComponentRegistry.component_registry:
+            # take the component lib module and take the _resource_dist.
+            m = sys.modules[mod]
+            all_resources.extend(getattr(m, self.resource_name, []))
 
-                namespaces.append(component._namespace)
+        all_resources.extend(self._resources)
 
-                if hasattr(component, self.resource_name):
-
-                    component_resources = copy(
-                        getattr(component, self.resource_name)
-                    )
-                    for r in component_resources:
-                        r['namespace'] = component._namespace
-                    resources.extend(component_resources)
-
-        extract_resource_from_component(layout)
-        for t in layout.traverse():
-            extract_resource_from_component(t)
-        return resources
+        return self._filter_resources(all_resources, dev_bundles)
 
 
 class Css:
@@ -111,9 +86,6 @@ def append_css(self, stylesheet):
     def get_all_css(self):
         return self._resources.get_all_resources()
 
-    def get_inferred_css_dist(self):
-        return self._resources.get_inferred_resources()
-
     # pylint: disable=old-style-class, no-init, too-few-public-methods
     class config:
         infer_from_layout = True
@@ -134,9 +106,6 @@ def append_script(self, script):
     def get_all_scripts(self, dev_bundles=False):
         return self._resources.get_all_resources(dev_bundles)
 
-    def get_inferred_scripts(self):
-        return self._resources.get_inferred_resources()
-
     # pylint: disable=old-style-class, no-init, too-few-public-methods
     class config:
         infer_from_layout = True

From ed8595cb7794e5c91d6165021719f74f15b08548 Mon Sep 17 00:00:00 2001
From: Philippe Duval <philippe@plot.ly>
Date: Wed, 31 Oct 2018 16:35:21 -0400
Subject: [PATCH 02/15] Use abc.ABCMeta as metaclass base for component as
 MutableMapping.

---
 dash/development/base_component.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/dash/development/base_component.py b/dash/development/base_component.py
index 9172c8a79d..2321d02408 100644
--- a/dash/development/base_component.py
+++ b/dash/development/base_component.py
@@ -4,16 +4,17 @@
 import inspect
 from ._all_keywords import kwlist
 import keyword
+import abc
 import six
 
 
-class ComponentRegistry(type):
+class ComponentRegistry(abc.ABCMeta):
     """Just importing a component lib will make it be loaded on the index"""
 
     component_registry = set()
 
     def __new__(mcs, name, bases, attributes):
-        component = type.__new__(mcs, name, bases, attributes)
+        component = abc.ABCMeta.__new__(mcs, name, bases, attributes)
         if name == 'Component':
             # Don't do the base component
             return component
@@ -73,7 +74,7 @@ def wrapper(*args, **kwargs):
 
 
 @six.add_metaclass(ComponentRegistry)
-class Component:
+class Component(collections.MutableMapping):
     class _UNDEFINED(object):
         def __repr__(self):
             return 'undefined'

From bb5fea5e29c28a4dcbbcd79f9bfd94f799d6101d Mon Sep 17 00:00:00 2001
From: Philippe Duval <philippe@plot.ly>
Date: Wed, 31 Oct 2018 16:42:13 -0400
Subject: [PATCH 03/15] Pylint fixes

---
 dash/development/base_component.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dash/development/base_component.py b/dash/development/base_component.py
index 2321d02408..534fea8663 100644
--- a/dash/development/base_component.py
+++ b/dash/development/base_component.py
@@ -13,6 +13,7 @@ class ComponentRegistry(abc.ABCMeta):
 
     component_registry = set()
 
+    # pylint: disable=arguments-differ
     def __new__(mcs, name, bases, attributes):
         component = abc.ABCMeta.__new__(mcs, name, bases, attributes)
         if name == 'Component':

From c6a3020e29403b11946c2960b8cc240efda7a681 Mon Sep 17 00:00:00 2001
From: Philippe Duval <philippe@plot.ly>
Date: Wed, 31 Oct 2018 20:01:29 -0400
Subject: [PATCH 04/15] Register the components namespace in
 component_loader.load_components

---
 dash/development/base_component.py   | 6 ++++--
 dash/development/component_loader.py | 3 +++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/dash/development/base_component.py b/dash/development/base_component.py
index 534fea8663..7e2d757859 100644
--- a/dash/development/base_component.py
+++ b/dash/development/base_component.py
@@ -16,11 +16,13 @@ class ComponentRegistry(abc.ABCMeta):
     # pylint: disable=arguments-differ
     def __new__(mcs, name, bases, attributes):
         component = abc.ABCMeta.__new__(mcs, name, bases, attributes)
-        if name == 'Component':
+        module = attributes['__module__'].split('.')[0]
+        if name == 'Component' or module == 'builtins':
             # Don't do the base component
+            # and the components loaded dynamically by load_component
+            # as it doesn't have the namespace.
             return component
 
-        module = attributes['__module__'].split('.')[0]
         mcs.component_registry.add(module)
 
         return component
diff --git a/dash/development/component_loader.py b/dash/development/component_loader.py
index 74d2e557d4..d82075ef04 100644
--- a/dash/development/component_loader.py
+++ b/dash/development/component_loader.py
@@ -3,6 +3,7 @@
 import os
 from .base_component import generate_class
 from .base_component import generate_class_file
+from .base_component import ComponentRegistry
 
 
 def _get_metadata(metadata_path):
@@ -30,6 +31,8 @@ def load_components(metadata_path,
     `type`, `valid_kwargs`, and `setup`.
     """
 
+    # Register the component lib for index include.
+    ComponentRegistry.component_registry.add(namespace)
     components = []
 
     data = _get_metadata(metadata_path)

From db2485fcc3605c549674e8ce1b127c72916d47dd Mon Sep 17 00:00:00 2001
From: Philippe Duval <philippe@plot.ly>
Date: Thu, 1 Nov 2018 11:16:37 -0400
Subject: [PATCH 05/15] Add dist cache for the registry.

---
 dash/development/base_component.py | 19 +++++++++++++++++++
 dash/resources.py                  | 10 +---------
 2 files changed, 20 insertions(+), 9 deletions(-)

diff --git a/dash/development/base_component.py b/dash/development/base_component.py
index 7e2d757859..3b7b4fa435 100644
--- a/dash/development/base_component.py
+++ b/dash/development/base_component.py
@@ -5,6 +5,7 @@
 from ._all_keywords import kwlist
 import keyword
 import abc
+import sys
 import six
 
 
@@ -12,6 +13,7 @@ class ComponentRegistry(abc.ABCMeta):
     """Just importing a component lib will make it be loaded on the index"""
 
     component_registry = set()
+    __dist_cache = collections.defaultdict(dict)
 
     # pylint: disable=arguments-differ
     def __new__(mcs, name, bases, attributes):
@@ -27,6 +29,23 @@ def __new__(mcs, name, bases, attributes):
 
         return component
 
+    @classmethod
+    def get_resources(mcs, resource_name):
+        cached = mcs.__dist_cache.get(resource_name)
+        current_len = len(mcs.component_registry)
+
+        if cached and current_len == cached.get('len'):
+            return cached.get('resources')
+
+        mcs.__dist_cache[resource_name]['resources'] = resources = []
+        mcs.__dist_cache[resource_name]['len'] = current_len
+
+        for module_name in mcs.component_registry:
+            module = sys.modules[module_name]
+            resources.extend(getattr(module, resource_name, []))
+
+        return resources
+
 
 def is_number(s):
     try:
diff --git a/dash/resources.py b/dash/resources.py
index f12c4a99af..9dcb78d503 100644
--- a/dash/resources.py
+++ b/dash/resources.py
@@ -1,7 +1,6 @@
 import json
 import warnings
 import os
-import sys
 
 from .development.base_component import ComponentRegistry
 
@@ -59,15 +58,8 @@ def _filter_resources(self, all_resources, dev_bundles=False):
         return filtered_resources
 
     def get_all_resources(self, dev_bundles=False):
-        all_resources = []
-
-        for mod in ComponentRegistry.component_registry:
-            # take the component lib module and take the _resource_dist.
-            m = sys.modules[mod]
-            all_resources.extend(getattr(m, self.resource_name, []))
-
+        all_resources = ComponentRegistry.get_resources(self.resource_name)
         all_resources.extend(self._resources)
-
         return self._filter_resources(all_resources, dev_bundles)
 
 

From ff3d16a13b97fb5c39fcd27be5f92f21b25f6b68 Mon Sep 17 00:00:00 2001
From: Philippe Duval <philippe@plot.ly>
Date: Thu, 1 Nov 2018 11:22:37 -0400
Subject: [PATCH 06/15] Rename ComponentRegistry.component_registry ->
 registry.

---
 dash/development/base_component.py   | 8 ++++----
 dash/development/component_loader.py | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/dash/development/base_component.py b/dash/development/base_component.py
index 3b7b4fa435..74381ae7d6 100644
--- a/dash/development/base_component.py
+++ b/dash/development/base_component.py
@@ -12,7 +12,7 @@
 class ComponentRegistry(abc.ABCMeta):
     """Just importing a component lib will make it be loaded on the index"""
 
-    component_registry = set()
+    registry = set()
     __dist_cache = collections.defaultdict(dict)
 
     # pylint: disable=arguments-differ
@@ -25,14 +25,14 @@ def __new__(mcs, name, bases, attributes):
             # as it doesn't have the namespace.
             return component
 
-        mcs.component_registry.add(module)
+        mcs.registry.add(module)
 
         return component
 
     @classmethod
     def get_resources(mcs, resource_name):
         cached = mcs.__dist_cache.get(resource_name)
-        current_len = len(mcs.component_registry)
+        current_len = len(mcs.registry)
 
         if cached and current_len == cached.get('len'):
             return cached.get('resources')
@@ -40,7 +40,7 @@ def get_resources(mcs, resource_name):
         mcs.__dist_cache[resource_name]['resources'] = resources = []
         mcs.__dist_cache[resource_name]['len'] = current_len
 
-        for module_name in mcs.component_registry:
+        for module_name in mcs.registry:
             module = sys.modules[module_name]
             resources.extend(getattr(module, resource_name, []))
 
diff --git a/dash/development/component_loader.py b/dash/development/component_loader.py
index d82075ef04..2b5e70b10f 100644
--- a/dash/development/component_loader.py
+++ b/dash/development/component_loader.py
@@ -32,7 +32,7 @@ def load_components(metadata_path,
     """
 
     # Register the component lib for index include.
-    ComponentRegistry.component_registry.add(namespace)
+    ComponentRegistry.registry.add(namespace)
     components = []
 
     data = _get_metadata(metadata_path)

From cdb785d390be4a243e8e4a74568fd97cc671c075 Mon Sep 17 00:00:00 2001
From: Philippe Duval <philippe@plot.ly>
Date: Thu, 1 Nov 2018 11:35:20 -0400
Subject: [PATCH 07/15] Add resources cache.

---
 dash/resources.py | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/dash/resources.py b/dash/resources.py
index 9dcb78d503..a89d18fc79 100644
--- a/dash/resources.py
+++ b/dash/resources.py
@@ -11,6 +11,10 @@ def __init__(self, resource_name, layout):
         self._resources = []
         self.resource_name = resource_name
         self.layout = layout
+        self._cache = {
+            'resources': [],
+            'len': 0
+        }
 
     def append_resource(self, resource):
         self._resources.append(resource)
@@ -58,9 +62,16 @@ def _filter_resources(self, all_resources, dev_bundles=False):
         return filtered_resources
 
     def get_all_resources(self, dev_bundles=False):
+        cur_len = len(self._resources)
+        if self._cache['resources'] and cur_len == self._cache['len']:
+            return self._cache['resources']
+
         all_resources = ComponentRegistry.get_resources(self.resource_name)
         all_resources.extend(self._resources)
-        return self._filter_resources(all_resources, dev_bundles)
+
+        self._cache['resources'] = res = self._filter_resources(all_resources, dev_bundles)
+        self._cache['len'] = cur_len
+        return res
 
 
 class Css:

From f779d27c02d27d9cec93cbed3128808bf28c4848 Mon Sep 17 00:00:00 2001
From: Philippe Duval <philippe@plot.ly>
Date: Thu, 1 Nov 2018 11:36:29 -0400
Subject: [PATCH 08/15] Line length fix.

---
 dash/resources.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dash/resources.py b/dash/resources.py
index a89d18fc79..2193169ecf 100644
--- a/dash/resources.py
+++ b/dash/resources.py
@@ -69,7 +69,8 @@ def get_all_resources(self, dev_bundles=False):
         all_resources = ComponentRegistry.get_resources(self.resource_name)
         all_resources.extend(self._resources)
 
-        self._cache['resources'] = res = self._filter_resources(all_resources, dev_bundles)
+        self._cache['resources'] = res = \
+            self._filter_resources(all_resources, dev_bundles)
         self._cache['len'] = cur_len
         return res
 

From b002d14822b715ab03671381bfcb32a740fca662 Mon Sep 17 00:00:00 2001
From: Philippe Duval <philippe@plot.ly>
Date: Thu, 1 Nov 2018 11:41:09 -0400
Subject: [PATCH 09/15] Disable pylint old-style-class

---
 .pylintrc         | 3 ++-
 dash/resources.py | 3 +--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/.pylintrc b/.pylintrc
index fba35186cc..fcf0968f10 100644
--- a/.pylintrc
+++ b/.pylintrc
@@ -57,7 +57,8 @@ confidence=
 disable=fixme,
         missing-docstring,
         invalid-name,
-        too-many-lines
+        too-many-lines,
+        old-style-class
 # Enable the message, report, category or checker with the given id(s). You can
 # either give multiple identifier separated by comma (,) or put this option
 # multiple time (only on the command line, not in the configuration file where
diff --git a/dash/resources.py b/dash/resources.py
index 2193169ecf..6d6c97b4d1 100644
--- a/dash/resources.py
+++ b/dash/resources.py
@@ -75,8 +75,7 @@ def get_all_resources(self, dev_bundles=False):
         return res
 
 
-class Css:
-    # pylint: disable=old-style-class
+class Css:  # pylint: disable=old-style-class
     def __init__(self, layout=None):
         self._resources = Resources('_css_dist', layout)
         self._resources.config = self.config

From f0cd7f72259b763cbbaa3b9c2e2457e0d8dcf260 Mon Sep 17 00:00:00 2001
From: Philippe Duval <philippe@plot.ly>
Date: Thu, 1 Nov 2018 11:49:58 -0400
Subject: [PATCH 10/15] Add late component register test.

---
 tests/test_integration.py | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/tests/test_integration.py b/tests/test_integration.py
index c507b80a07..ef433030f6 100644
--- a/tests/test_integration.py
+++ b/tests/test_integration.py
@@ -531,3 +531,27 @@ def create_layout():
 
         self.startServer(app)
         time.sleep(0.5)
+
+    def test_late_component_register(self):
+        app = dash.Dash()
+
+        app.layout = html.Div([
+            html.Button('Click me to put a dcc ', id='btn-insert'),
+            html.Div(id='output')
+        ])
+
+        @app.callback(Output('output', 'children'),
+                      [Input('btn-insert', 'n_clicks')])
+        def update_output(value):
+            if value is None:
+                raise PreventUpdate
+
+            return dcc.Input(id='inserted-input')
+
+        self.startServer(app)
+
+        btn = self.wait_for_element_by_css_selector('#btn-insert')
+        btn.click()
+        time.sleep(1)
+
+        self.wait_for_element_by_css_selector('#inserted-input')

From b565cbc8874e5f00f3375cd9ff1e8c514d6c8547 Mon Sep 17 00:00:00 2001
From: Philippe Duval <philippe@plot.ly>
Date: Fri, 2 Nov 2018 21:58:41 -0400
Subject: [PATCH 11/15] Refactor `__new__` to ComponentMeta.

---
 dash/development/base_component.py | 46 ++++++++++++++++--------------
 1 file changed, 25 insertions(+), 21 deletions(-)

diff --git a/dash/development/base_component.py b/dash/development/base_component.py
index 74381ae7d6..d19702aff6 100644
--- a/dash/development/base_component.py
+++ b/dash/development/base_component.py
@@ -9,12 +9,33 @@
 import six
 
 
-class ComponentRegistry(abc.ABCMeta):
-    """Just importing a component lib will make it be loaded on the index"""
+# pylint: disable=no-init,too-few-public-methods
+class ComponentRegistry:
+    """Holds a registry of the namespaces used by components."""
 
     registry = set()
     __dist_cache = collections.defaultdict(dict)
 
+    @classmethod
+    def get_resources(cls, resource_name):
+        cached = cls.__dist_cache.get(resource_name)
+        current_len = len(cls.registry)
+
+        if cached and current_len == cached.get('len'):
+            return cached.get('resources')
+
+        cls.__dist_cache[resource_name]['resources'] = resources = []
+        cls.__dist_cache[resource_name]['len'] = current_len
+
+        for module_name in cls.registry:
+            module = sys.modules[module_name]
+            resources.extend(getattr(module, resource_name, []))
+
+        return resources
+
+
+class ComponentMeta(abc.ABCMeta):
+
     # pylint: disable=arguments-differ
     def __new__(mcs, name, bases, attributes):
         component = abc.ABCMeta.__new__(mcs, name, bases, attributes)
@@ -25,27 +46,10 @@ def __new__(mcs, name, bases, attributes):
             # as it doesn't have the namespace.
             return component
 
-        mcs.registry.add(module)
+        ComponentRegistry.registry.add(module)
 
         return component
 
-    @classmethod
-    def get_resources(mcs, resource_name):
-        cached = mcs.__dist_cache.get(resource_name)
-        current_len = len(mcs.registry)
-
-        if cached and current_len == cached.get('len'):
-            return cached.get('resources')
-
-        mcs.__dist_cache[resource_name]['resources'] = resources = []
-        mcs.__dist_cache[resource_name]['len'] = current_len
-
-        for module_name in mcs.registry:
-            module = sys.modules[module_name]
-            resources.extend(getattr(module, resource_name, []))
-
-        return resources
-
 
 def is_number(s):
     try:
@@ -95,7 +99,7 @@ def wrapper(*args, **kwargs):
     return wrapper
 
 
-@six.add_metaclass(ComponentRegistry)
+@six.add_metaclass(ComponentMeta)
 class Component(collections.MutableMapping):
     class _UNDEFINED(object):
         def __repr__(self):

From 9a65658f8ddd384c6db153b0fe1f1fc0809fc08d Mon Sep 17 00:00:00 2001
From: Philippe Duval <philippe@plot.ly>
Date: Mon, 5 Nov 2018 11:05:10 -0500
Subject: [PATCH 12/15] Remove cache bust len from ComponentRegistry.

---
 dash/development/base_component.py | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/dash/development/base_component.py b/dash/development/base_component.py
index d19702aff6..de62756e28 100644
--- a/dash/development/base_component.py
+++ b/dash/development/base_component.py
@@ -14,18 +14,16 @@ class ComponentRegistry:
     """Holds a registry of the namespaces used by components."""
 
     registry = set()
-    __dist_cache = collections.defaultdict(dict)
+    __dist_cache = {}
 
     @classmethod
     def get_resources(cls, resource_name):
         cached = cls.__dist_cache.get(resource_name)
-        current_len = len(cls.registry)
 
-        if cached and current_len == cached.get('len'):
-            return cached.get('resources')
+        if cached:
+            return cached
 
-        cls.__dist_cache[resource_name]['resources'] = resources = []
-        cls.__dist_cache[resource_name]['len'] = current_len
+        cls.__dist_cache[resource_name] = resources = []
 
         for module_name in cls.registry:
             module = sys.modules[module_name]

From c8e6fa8991b9b3be9a461855eaa1f4633ec13074 Mon Sep 17 00:00:00 2001
From: Philippe Duval <philippe@plot.ly>
Date: Mon, 5 Nov 2018 11:14:08 -0500
Subject: [PATCH 13/15] Remove len cache bust from resources, integrate with
 hot-reload later.

---
 dash/resources.py | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/dash/resources.py b/dash/resources.py
index 6d6c97b4d1..c01546df35 100644
--- a/dash/resources.py
+++ b/dash/resources.py
@@ -11,10 +11,7 @@ def __init__(self, resource_name, layout):
         self._resources = []
         self.resource_name = resource_name
         self.layout = layout
-        self._cache = {
-            'resources': [],
-            'len': 0
-        }
+        self._resources_cache = []
 
     def append_resource(self, resource):
         self._resources.append(resource)
@@ -62,16 +59,14 @@ def _filter_resources(self, all_resources, dev_bundles=False):
         return filtered_resources
 
     def get_all_resources(self, dev_bundles=False):
-        cur_len = len(self._resources)
-        if self._cache['resources'] and cur_len == self._cache['len']:
-            return self._cache['resources']
+        if self._resources_cache:
+            return self._resources_cache
 
         all_resources = ComponentRegistry.get_resources(self.resource_name)
         all_resources.extend(self._resources)
 
-        self._cache['resources'] = res = \
+        self._resources_cache = res = \
             self._filter_resources(all_resources, dev_bundles)
-        self._cache['len'] = cur_len
         return res
 
 

From 2449ee9595cbefc4d6f16706cdafabb9d412d188 Mon Sep 17 00:00:00 2001
From: Philippe Duval <philippe@plot.ly>
Date: Tue, 6 Nov 2018 11:04:53 -0500
Subject: [PATCH 14/15] Version bump.

---
 CHANGELOG.md    | 4 ++++
 dash/version.py | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 530c0c7a87..5936f46e20 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.29.0 - 2018-11-06
+## Added
+- Added component namespaces registry, collect the resources needed by component library when they are imported instead of crawling the layout. [#444](https://github.com/plotly/dash/pull/444)
+
 ## 0.28.7 - 2018-11-05
 ## Fixed
 - Component generation now uses the same prop name black list in all supported Python versions. Closes [#361](https://github.com/plotly/dash/issues/361). [#450](https://github.com/plotly/dash/pull/450)
diff --git a/dash/version.py b/dash/version.py
index b9becf56e0..9093e4e468 100644
--- a/dash/version.py
+++ b/dash/version.py
@@ -1 +1 @@
-__version__ = '0.28.7'
+__version__ = '0.29.0'

From b731b6eb97e788345cf78819555c3f7cc58a9edf Mon Sep 17 00:00:00 2001
From: Philippe Duval <philippe@plot.ly>
Date: Tue, 6 Nov 2018 11:08:11 -0500
Subject: [PATCH 15/15] Pylint fix.

---
 dash/development/base_component.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dash/development/base_component.py b/dash/development/base_component.py
index de62756e28..789253a3f2 100644
--- a/dash/development/base_component.py
+++ b/dash/development/base_component.py
@@ -2,12 +2,12 @@
 import copy
 import os
 import inspect
-from ._all_keywords import kwlist
-import keyword
 import abc
 import sys
 import six
 
+from ._all_keywords import kwlist
+
 
 # pylint: disable=no-init,too-few-public-methods
 class ComponentRegistry: