try --no-build-isolation

Author: pmeier

.circleci/config.yml.in

@@ -207,7 +207,7 @@ jobs:
             pip install --user --progress-bar off mypy
             pip install --user --progress-bar off types-requests
             pip install --user --progress-bar off --pre torch -f https://download.pytorch.org/whl/nightly/cpu/torch_nightly.html
-            pip install --user --progress-bar off --editable .
+            pip install --user --progress-bar off --editable --no-build-isolation .
             mypy --config-file mypy.ini
 
   docstring_parameters_sync:
@@ -241,7 +241,7 @@ jobs:
           command: |
             pip install --user --progress-bar off --pre torch -f https://download.pytorch.org/whl/nightly/cpu/torch_nightly.html
             # need to install torchvision dependencies due to transitive imports
-            pip install --user --progress-bar off --editable .
+            pip install --user --progress-bar off --editable --no-build-isolation .
             pip install pytest
             python test/test_hub.py
 
@@ -254,7 +254,7 @@ jobs:
           command: |
             pip install --user --progress-bar off --pre torch -f https://download.pytorch.org/whl/nightly/cpu/torch_nightly.html
             # need to install torchvision dependencies due to transitive imports
-            pip install --user --progress-bar off --editable .
+            pip install --user --progress-bar off --editable --no-build-isolation .
             pip install --user onnx
             pip install --user onnxruntime
             pip install --user pytest

pyproject.toml

@@ -1,10 +1,3 @@
-[build-system]
-requires = [
-  "setuptools >= 40.9.0",
-  "wheel",
-]
-build-backend = "setuptools.build_meta"
-
 [tool.isort]
 # See link below for available options
 # https://pycqa.github.io/isort/docs/configuration/options.html