ENH: Support sphinx>=4,<5 (#38)

* MAINT: update from sphinx4 deprecation

* TEST: Update base tests

* TEST: Update project tests

* Support sphinx>=4

* require sphinx>=4

* update environment for project test case

environment.yml

@@ -5,4 +5,5 @@ dependencies:
   - python=3.8
   - pip
   - pip:
+    - sphinx
     - jupyter-book

setup.py

@@ -2,7 +2,7 @@
 
 from setuptools import setup, find_packages
 
-VERSION = 'v0.1.2'
+VERSION = 'v0.2.0'
 
 LONG_DESCRIPTION = """
 This package contains a [Sphinx](http://www.sphinx-doc.org/en/master/) extension 
@@ -14,8 +14,6 @@
 This project is maintained and supported by [QuantEcon](http://quantecon.org/)
 """
 
-requires = ['Sphinx>=3.0']
-
 setup(
     name='sphinx-tojupyter',
     version=VERSION,
@@ -43,5 +41,5 @@
     platforms='any',
     packages=find_packages(),
     include_package_data=True,
-    install_requires=['sphinx', 'pyyaml', 'nbformat', 'nbconvert', 'dask[distributed]', 'nbdime'],
+    install_requires=['sphinx>=4', 'pyyaml', 'nbformat', 'nbconvert', 'dask[distributed]', 'nbdime'],
 )

sphinx_tojupyter/builders/jupyter.py

@@ -99,8 +99,8 @@ def get_outdated_docs(self):
             if docname not in self.env.all_docs:
                 yield docname
                 continue
-            targetname = self.env.doc2path(docname, self.outdir,
-                                           self.out_suffix)
+            targetname = os.path.join(self.outdir, docname)
+            targetname += self.out_suffix
             try:
                 targetmtime = os.path.getmtime(targetname)
             except OSError: