Merge pull request #143 from CasperWA/close_48_periodic-table

Use PeriodicTable widget from `widget_periodictable` for elements input.
Remove black from dev requirements.
Remove CIF and PDF conversions through ASE (redundant).

OPTIMADE Client.ipynb

@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 0,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -16,7 +16,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 0,
    "metadata": {},
    "outputs": [
     {
@@ -72,7 +72,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 0,
    "metadata": {},
    "outputs": [
     {
@@ -96,7 +96,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 0,
    "metadata": {},
    "outputs": [
     {
@@ -120,7 +120,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 0,
    "metadata": {},
    "outputs": [
     {
@@ -177,13 +177,6 @@
     "\n",
     "display(filters_summary)"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
   }
  ],
  "metadata": {

binder/postBuild

@@ -10,3 +10,6 @@ jupyter nbextension enable --py --sys-prefix nglview
 # Voilà
 jupyter nbextension enable --py --sys-prefix voila
 
+# Period Table
+jupyter nbextension enable --py --sys-prefix widget_periodictable
+

optimade_client/subwidgets/__init__.py

@@ -2,6 +2,7 @@
 from .filter_inputs import *
 from .multi_checkbox import *
 from .output_summary import *
+from .periodic_table import *
 from .provider_database import *
 from .results import *
 
@@ -10,6 +11,7 @@
     filter_inputs.__all__  # noqa
     + multi_checkbox.__all__  # noqa
     + output_summary.__all__  # noqa
+    + periodic_table.__all__  # noqa
     + provider_database.__all__  # noqa
     + results.__all__  # noqa
 )