A collection of minor updates for 2022

README.md

@@ -1,14 +1,16 @@
 # The Jupyter Widget Ecosystem
 
-## Tutorial, SciPy 2021
+## Tutorial, SciPy 2022
 
 # https://github.com/jupyter-widgets/tutorial
 
 # Installation
 
-### Installation instructions last updated 2021-06-07
+**NOTE**: These installation instructions install `ipywidgets` version 7.7. We anticipate that ipywidgets 8 will be released before the tutorial. If it, and all of the packages that we use that are dependent on `ipywidgets` have releases before the tutorial we will also provide ipywidgets 8 installation instructions.
 
-The code in the tutorial has been written using Python 3; many of the dependencies may not be available for Python 2.7.
+Either way, we will include some of the new features of ipywidgets 8 in the tutorial.
+
+### Installation instructions last updated 2022-06-17
 
 We **strongly recommend** using the conda Python distribution. You can install either [miniconda](https://conda.io/miniconda.html) (much smaller, only essential packages) or the full [anaconda distribution](https://www.continuum.io/downloads) (very extensive, but very, very large).
 
@@ -24,12 +26,12 @@ You can do this with either `git clone https://github.com/jupyter-widgets/tutori
 
 ## conda installation instructions
 
-The steps below will get you a  working environment.
+The steps below will get you a working environment.
 
 ```bash
 conda env create -f environment.yml
 
-conda activate widgets-tutorial-2021
+conda activate widgets-tutorial-2022
 
 # Create a kernel for this environment
 ipython kernel install --name widgets-tutorial --display-name widgets-tutorial --sys-prefix

environment.yml

@@ -1,30 +1,30 @@
-name: widgets-tutorial-2021
+name: widgets-tutorial-2022
 channels:
   - conda-forge
 dependencies:
-  - bqplot=0.12.29
-  - ipycanvas=0.8.2
-  - ipycytoscape=1.2.2
-  - ipydatagrid=1.0.7
+  - bqplot=0.12.33
+  - branca=0.5.0
+  - ipycanvas=0.12.0
+  - ipycytoscape=1.3.3
+  - ipydatagrid=1.1.12
+  - ipyevents=2.0.1
   - ipygany=0.5.0
-  - ipyleaflet=0.14.0
-  - ipympl=0.7.0
+  - ipyleaflet=0.16.0
+  - ipympl=0.9.1
   - ipytree=0.2.1
   - ipyvolume=0.6.0a8
-  - ipyvuetify=1.7.0
-  - ipywidgets=7.6
-  - jupyterlab=3
+  - ipyvuetify=1.8.2
+  - ipywidgets=7.7.0
+  - jupyterlab=3.4
   - numpy
   - pandas
   - pip
-  - python=3.8
+  - python=3.9
   - pythreejs=2.3.0
-  - pyvista=0.31.3
+  - pyvista=0.34.0
   - requests
   - scikit-image
   - scipy
   - sidecar=0.5.1
-  - voila=0.2.10
-  - voila-vuetify=0.5.2
-  - voila-material=0.4.0
-  - vtk=8.2.0
+  - voila=0.3.5
+  - vtk=9.1.0

install_check.py

@@ -40,7 +40,7 @@
 success = all(import_result.values())
 
 # List compatible versions for each package
-version_check_packages = {'ipywidgets': ['7.6'],
+version_check_packages = {'ipywidgets': ['7.7'],
                           'jupyterlab': ['3'],
                          }
 

notebooks/02.Interact/02.01-OPTIONAL-More-About-Interact.ipynb

@@ -1,21 +1,21 @@
 {
  "cells": [
   {
-   "cell_type": "code",
-   "execution_count": null,
+   "cell_type": "markdown",
    "metadata": {},
-   "outputs": [],
    "source": [
-    "from ipywidgets import interact, interactive, fixed, interact_manual\n",
-    "import ipywidgets as widgets"
+    "<!--NAVIGATION-->\n",
+    "< [Widgets without writing widgets: interact](02.00-Using-Interact.ipynb) | [Contents](00.00-index.ipynb) | [Simple Widget Introduction](03.00-Widget_Basics.ipynb) >"
    ]
   },
   {
-   "cell_type": "markdown",
+   "cell_type": "code",
+   "execution_count": null,
    "metadata": {},
+   "outputs": [],
    "source": [
-    "<!--NAVIGATION-->\n",
-    "< [Widgets without writing widgets: interact](02.00-Using-Interact.ipynb) | [Contents](00.00-index.ipynb) | [Simple Widget Introduction](03.00-Widget_Basics.ipynb) >"
+    "from ipywidgets import interact, interactive, fixed, interact_manual\n",
+    "import ipywidgets as widgets"
    ]
   },
   {

notebooks/04.WidgetList/widget_org.py

@@ -48,13 +48,7 @@ def organized_widgets(organize_by='ui'):
                           'Valid options are: {valid_organizations}')
 
     all_wids = inspect.getmembers(widgets)
-    # for a in all_wids:
-    #     name = a[0]
-    #     arf = a[1]
-    #     if (not name.startswith('_') and
-    #                   name[0] in string.ascii_uppercase and
-    #                   issubclass(arf, widgets.DOMWidget)):
-    #         print('woot')
+
     widget_dict = {name: wid for name, wid in all_wids
                    if not name.startswith('_') and
                       name[0] in string.ascii_uppercase and
@@ -131,8 +125,15 @@ def fill_container(widget, name):
 
     # Set tab or accordion names
     if name == "accordion" or name == "tab":
-        for i in range(len(widget.children)):
-            widget.set_title(i, '{} {}'.format(name, i))
+        titles = [f'{name} {idx}' for idx, _ in enumerate(widget.children)]
+        try:
+            # Retrieve the titles attribute to see if it exists
+            widget.titles
+        except AttributeError:
+            for idx, title in enumerate(titles):
+                widget.set_title(idx, title)
+        else:
+            widget.titles = titles
 
     # Start with all the accordions closed
     if name == "accordion":
@@ -219,7 +220,6 @@ def box_maker(name, widget, group):
         return b
 
     for group, group_widgets in groups.items():
-        # print(group)
         titles.append(group)
         col_spec = f"repeat({columns}, minmax({min_width_single_widget}px, 1fr)"
         layout = widgets.Layout(grid_template_columns=col_spec,
@@ -230,8 +230,16 @@ def box_maker(name, widget, group):
 
     tabs.children = kids
 
-    for i, title in enumerate(titles):
-        nice = title.replace('_', ' ')
-        tabs.set_title(i, nice.title())
+    try:
+        # Try to access the titles attribute to see if it exists
+        tabs.titles
+    except AttributeError:
+        # We must be using ipywidgets 7, so set_titles
+        for i, title in enumerate(titles):
+            nice = title.replace('_', ' ')
+            tabs.set_title(i, nice.title())
+    else:
+        # We have ipywidgets 8
+        tabs.titles = titles
 
     return tabs

notebooks/05.Events/05.02-OPTIONAL-Widget_Events_2_--_bad_password_generator,_version_1.ipynb

@@ -1,14 +1,5 @@
 {
  "cells": [
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "import ipywidgets as widgets"
-   ]
-  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -29,6 +20,15 @@
     "This notebook illustrates how to connect the function that calculates the password to the length slider using `observe` but mixes together the code to calculate the password and the code to handle the events generated by the interface"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import ipywidgets as widgets"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -52,7 +52,7 @@
    },
    "outputs": [],
    "source": [
-    "helpful_title = 0  # Replace with some that displays \"Generated password is:\"\n",
+    "helpful_title = 0  # Replace with something that displays \"Generated password is:\"\n",
     "password_text = 0  # Replace with something that displays \"No password set\"\n",
     "password_length = 0 # Replace with slider\n"
    ]

notebooks/05.Events/05.03-OPTIONAL-Widget_Events_2_--_Separating_Concerns.ipynb

@@ -1,14 +1,5 @@
 {
  "cells": [
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "import ipywidgets as widgets"
-   ]
-  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -26,6 +17,15 @@
     "A key principle in designing a graphical user interface is to separate the logic of an application from the graphical widgets the user sees. For example, in the super-simple password generator widget, the basic logic is to construct a sequence of random letters given the length. Let's isolate that logic in a function, without any widgets. This function takes a password length and returns a generated password string."
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import ipywidgets as widgets"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,

notebooks/05.Events/05.04-OPTIONAL-Widget_Events_2--Separating_concerns,_object_oriented.ipynb

@@ -1,15 +1,5 @@
 {
  "cells": [
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "import ipywidgets as widgets\n",
-    "import traitlets"
-   ]
-  },
   {
    "cell_type": "markdown",
    "metadata": {},
@@ -36,6 +26,16 @@
     "+ one way to link those two classes."
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import ipywidgets as widgets\n",
+    "import traitlets"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},