Fix CI

doc/conf.py

@@ -41,7 +41,7 @@
 
 # This is processed by Jinja2 and inserted before each notebook
 nbsphinx_prolog = r"""
-{% set docname = 'doc/' + env.doc2path(env.docname, base=None)|string %}
+{% set docname = 'doc/' + env.doc2path(env.docname, base=False)|string %}
 
 .. raw:: html
 
@@ -77,7 +77,7 @@
 
 # This is processed by Jinja2 and inserted after each notebook
 nbsphinx_epilog = r"""
-{% set docname = 'doc/' + env.doc2path(env.docname, base=None)|string %}
+{% set docname = 'doc/' + env.doc2path(env.docname, base=False)|string %}
 .. raw:: latex
 
     \nbsphinxstopnotebook{\scriptsize\noindent\strut

doc/configuring-kernels.ipynb

@@ -91,7 +91,6 @@
    "source": [
     "If you are using https://mybinder.org/ and you want to define environment variables,\n",
     "you should create a file `.binder/start` in your repository\n",
-    "(see [Binder docs](https://mybinder.readthedocs.io/en/latest/using/config_files.html#start-run-code-before-the-user-sessions-starts))\n",
     "containing definitions like this:\n",
     "\n",
     "```bash\n",

doc/prolog-and-epilog.ipynb

@@ -26,7 +26,7 @@
     "You have access to the current [Sphinx build environment](https://www.sphinx-doc.org/en/master/extdev/envapi.html) via the variable `env`.\n",
     "Most notably, you can get the file name of the current notebook with\n",
     "\n",
-    "    {{ env.doc2path(env.docname, base=None)|string }}\n",
+    "    {{ env.doc2path(env.docname, base=False)|string }}\n",
     "\n",
     "Have a look at the [Jinja2 template documentation](https://jinja.palletsprojects.com/templates/) for more information.\n",
     "\n",
@@ -42,7 +42,7 @@
     "To avoid clashing braces you can try to insert additional spaces or LaTeX macros that don't have a visible effect, like e.g. `\\strut{}`.\n",
     "For example, you can avoid three consecutive opening braces with something like that:\n",
     "\n",
-    "    \\texttt{\\strut{}{{ env.doc2path(env.docname, base=None)|string }}}\n",
+    "    \\texttt{\\strut{}{{ env.doc2path(env.docname, base=False)|string }}}\n",
     "\n",
     "NB: The three consecutive closing braces in this example are not problematic.\n",
     "    \n",
@@ -83,7 +83,7 @@
     "\n",
     "```python\n",
     "nbsphinx_prolog = \"\"\"\n",
-    "Go there: https://example.org/notebooks/{{ env.doc2path(env.docname, base=None)|string }}\n",
+    "Go there: https://example.org/notebooks/{{ env.doc2path(env.docname, base=False)|string }}\n",
     "\n",
     "----\n",
     "\"\"\"\n",
@@ -93,7 +93,7 @@
     "\n",
     "```python\n",
     "nbsphinx_prolog = r\"\"\"\n",
-    "{% set docname = env.doc2path(env.docname, base=None)|string %}\n",
+    "{% set docname = env.doc2path(env.docname, base=False)|string %}\n",
     "\n",
     ".. only:: html\n",
     "\n",

doc/usage.ipynb

@@ -93,7 +93,7 @@
     "\n",
     "    python3 -m sphinx <source-dir> <build-dir> -b latex\n",
     "\n",
-    "If you don't know how to create a PDF file from the LaTeX output, you should have a look at [Latexmk](http://personal.psu.edu/jcc8//software/latexmk-jcc/) (see also [this tutorial](https://mg.readthedocs.io/latexmk.html)).\n",
+    "If you don't know how to create a PDF file from the LaTeX output, you should have a look at [Latexmk](https://www.cantab.net/users/johncollins/latexmk/index.html) (see also [this tutorial](https://mg.readthedocs.io/latexmk.html)).\n",
     "\n",
     "Sphinx can automatically check if the links you are using are still valid.\n",
     "Just invoke it like this:\n",

src/nbsphinx/__init__.py

@@ -597,7 +597,7 @@ def parse(self, inputstring, document):
         formats = {
             '.ipynb': lambda s: nbformat.reads(s, as_version=_ipynbversion)}
         formats.update(env.config.nbsphinx_custom_formats)
-        srcfile = str(env.doc2path(env.docname, base=None))
+        srcfile = str(env.doc2path(env.docname, base=False))
         for format, converter in formats.items():
             if srcfile.endswith(format):
                 break
@@ -655,14 +655,14 @@ def parse(self, inputstring, document):
         except nbconvert.preprocessors.CellExecutionError as e:
             lines = str(e).split('\n')
             lines[0] = 'CellExecutionError in {}:'.format(
-                env.doc2path(env.docname, base=None))
+                env.doc2path(env.docname, base=False))
             lines.append("You can ignore this error by setting the following "
                          "in conf.py:\n\n    nbsphinx_allow_errors = True\n")
             raise NotebookError('\n'.join(lines))
         except Exception as e:
             raise NotebookError(
                 type(e).__name__ + ' in ' +
-                str(env.doc2path(env.docname, base=None)) + ':\n' + str(e))
+                str(env.doc2path(env.docname, base=False)) + ':\n' + str(e))
 
         rststring = """
 .. role:: nbsphinx-math(raw)
@@ -1348,7 +1348,7 @@ class CreateSectionLabels(docutils.transforms.Transform):
 
     def apply(self):
         env = self.document.settings.env
-        file_ext = str(env.doc2path(env.docname, base=None))[len(env.docname):]
+        file_ext = str(env.doc2path(env.docname, base=False))[len(env.docname):]
         i_still_have_to_create_the_document_label = True
         for section in self.document.findall(docutils.nodes.section):
             assert section.children
@@ -1379,7 +1379,7 @@ class CreateDomainObjectLabels(docutils.transforms.Transform):
 
     def apply(self):
         env = self.document.settings.env
-        file_ext = str(env.doc2path(env.docname, base=None))[len(env.docname):]
+        file_ext = str(env.doc2path(env.docname, base=False))[len(env.docname):]
         for sig in self.document.findall(sphinx.addnodes.desc_signature):
             try:
                 title = sig['ids'][0]