Limit sphinx version to <7.4.0. <=7.4.0 causes issue with Spyder's sp…

…lash screen.

binder/environment.yml

@@ -49,7 +49,7 @@ dependencies:
 - qtpy >=2.4.0
 - rtree >=0.9.7
 - setuptools >=49.6.0
-- sphinx >=0.6.6
+- sphinx >=0.6.6,<7.4.0
 - spyder-kernels >=3.0.0b9,<3.0.0b10
 - superqt >=0.6.2,<1.0.0
 - textdistance >=4.2.0

requirements/main.yml

@@ -46,7 +46,7 @@ dependencies:
   - qtpy >=2.4.0
   - rtree >=0.9.7
   - setuptools >=49.6.0
-  - sphinx >=0.6.6
+  - sphinx >=0.6.6,<7.4.0
   - spyder-kernels >=3.0.0b9,<3.0.0b10
   - superqt >=0.6.2,<1.0.0
   - textdistance >=4.2.0

setup.py

@@ -246,7 +246,7 @@ def run(self):
     'qtpy>=2.4.0',
     'rtree>=0.9.7',
     'setuptools>=49.6.0',
-    'sphinx>=0.6.6',
+    'sphinx>=0.6.6,<7.4.0',
     'spyder-kernels>=3.0.0b9,<3.0.0b10',
     'superqt>=0.6.2,<1.0.0',
     'textdistance>=4.2.0',

spyder/dependencies.py

@@ -72,7 +72,7 @@
 QTPY_REQVER = '>=2.4.0'
 RTREE_REQVER = '>=0.9.7'
 SETUPTOOLS_REQVER = '>=49.6.0'
-SPHINX_REQVER = '>=0.6.6'
+SPHINX_REQVER = '>=0.6.6,<7.4.0'
 SPYDER_KERNELS_REQVER = '>=3.0.0b9,<3.0.0b10'
 SUPERQT_REQVER = '>=0.6.2,<1.0.0'
 TEXTDISTANCE_REQVER = '>=4.2.0'

spyder/plugins/help/confpage.py

@@ -43,6 +43,7 @@ def setup_page(self):
         features_group = QGroupBox(_("Additional features"))
         math_box = self.create_checkbox(_("Render mathematical equations"),
                                         'math')
+        # ??? Do we want to increase minimum sphinx requirement for Spyder?
         req_sphinx = programs.is_module_installed('sphinx', '>=1.1')
         math_box.setEnabled(req_sphinx)
         if not req_sphinx:
@@ -70,4 +71,3 @@ def setup_page(self):
         vlayout.addWidget(sourcecode_group)
         vlayout.addStretch(1)
         self.setLayout(vlayout)
-