Fix tests for newer Sphinx on newer Python versions

Author: domdfcoding

tox.ini

@@ -299,6 +299,9 @@ commands =
     python -m pytest --cov=html_section -r aR tests/ {posargs}
 
 [testenv:py{39,310,311,312,313,py39}-sphinx7.2]
+setenv =
+    PYTHONDEVMODE=1
+    PIP_DISABLE_PIP_VERSION_CHECK=1
 deps =
     -r{toxinidir}/tests/requirements.txt
     -r{toxinidir}/requirements.txt
@@ -309,6 +312,9 @@ commands =
     python -m pytest --cov=html_section -r aR tests/ {posargs}
 
 [testenv:py{39,310,311,312,313,py39}-sphinx7.3]
+setenv =
+    PYTHONDEVMODE=1
+    PIP_DISABLE_PIP_VERSION_CHECK=1
 deps =
     -r{toxinidir}/tests/requirements.txt
     -r{toxinidir}/requirements.txt
@@ -319,6 +325,9 @@ commands =
     python -m pytest --cov=html_section -r aR tests/ {posargs}
 
 [testenv:py{39,310,311,312,313,py39}-sphinx7.4]
+setenv =
+    PYTHONDEVMODE=1
+    PIP_DISABLE_PIP_VERSION_CHECK=1
 deps =
     -r{toxinidir}/tests/requirements.txt
     -r{toxinidir}/requirements.txt
@@ -329,6 +338,9 @@ commands =
     python -m pytest --cov=html_section -r aR tests/ {posargs}
 
 [testenv:py{310,311,312,313}-sphinx8.0]
+setenv =
+    PYTHONDEVMODE=1
+    PIP_DISABLE_PIP_VERSION_CHECK=1
 deps =
     -r{toxinidir}/tests/requirements.txt
     -r{toxinidir}/requirements.txt
@@ -339,6 +351,9 @@ commands =
     python -m pytest --cov=html_section -r aR tests/ {posargs}
 
 [testenv:py{310,311,312,313}-sphinx8.1]
+setenv =
+    PYTHONDEVMODE=1
+    PIP_DISABLE_PIP_VERSION_CHECK=1
 deps =
     -r{toxinidir}/tests/requirements.txt
     -r{toxinidir}/requirements.txt
@@ -349,6 +364,9 @@ commands =
     python -m pytest --cov=html_section -r aR tests/ {posargs}
 
 [testenv:py{311,312,313}-sphinx8.2]
+setenv =
+    PYTHONDEVMODE=1
+    PIP_DISABLE_PIP_VERSION_CHECK=1
 deps =
     -r{toxinidir}/tests/requirements.txt
     -r{toxinidir}/requirements.txt