redo PR 1235

Author: jph00

nbdev/config.py

@@ -35,6 +35,9 @@ def _git_repo():
     except OSError: return
 
 # %% ../nbs/api/01_config.ipynb 11
+# When adding a named default to the list below, be sure that that name
+# is also added to one of the sections in `_nbdev_cfg_sections` as well,
+# or it won't get written by `nbdev_create_config`:
 def _apply_defaults(
     cfg,
     lib_name='%(repo)s', # Package name
@@ -141,7 +144,7 @@ def _cfg2txt(cfg, head, sections, tail=''):
 # See https://github.com/fastai/nbdev/blob/master/settings.ini for examples.
 
 '''
-_nbdev_cfg_sections = {'Python library': 'repo lib_name version min_python license',
+_nbdev_cfg_sections = {'Python library': 'repo lib_name version min_python license black_formatting',
                        'nbdev': 'doc_path lib_path nbs_path recursive tst_flags put_version_in_init',
                        'Docs': 'branch custom_sidebar doc_host doc_baseurl git_url title',
                        'PyPI': 'audience author author_email copyright description keywords language status user'}

nbs/api/01_config.ipynb

@@ -130,6 +130,10 @@
    "outputs": [],
    "source": [
     "#|export\n",
+    "\n",
+    "# When adding a named default to the list below, be sure that that name\n",
+    "# is also added to one of the sections in `_nbdev_cfg_sections` as well,\n",
+    "# or it won't get written by `nbdev_create_config`:\n",
     "def _apply_defaults(\n",
     "    cfg,\n",
     "    lib_name='%(repo)s', # Package name\n",
@@ -330,7 +334,7 @@
     "# See https://github.com/fastai/nbdev/blob/master/settings.ini for examples.\n",
     "\n",
     "'''\n",
-    "_nbdev_cfg_sections = {'Python library': 'repo lib_name version min_python license',\n",
+    "_nbdev_cfg_sections = {'Python library': 'repo lib_name version min_python license black_formatting',\n",
     "                       'nbdev': 'doc_path lib_path nbs_path recursive tst_flags put_version_in_init',\n",
     "                       'Docs': 'branch custom_sidebar doc_host doc_baseurl git_url title',\n",
     "                       'PyPI': 'audience author author_email copyright description keywords language status user'}\n",
@@ -790,7 +794,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   }