Pin setuptools in CI

.azure/docs-linux.yml

@@ -30,15 +30,17 @@ jobs:
 
       - bash: |
           set -e
-          python -m pip install --upgrade pip setuptools wheel
-          pip install -U tox
+          python -m pip install --upgrade pip 'setuptools<64.0.0' wheel -c constraints.txt
+          pip install -U tox -c constraints.txt
           sudo apt-get update
           sudo apt-get install -y graphviz
         displayName: 'Install dependencies'
 
       - bash: |
           tox -edocs
         displayName: 'Run Docs build'
+        env:
+          SETUPTOOLS_ENABLE_FEATURES: "legacy-editable"
 
       - task: ArchiveFiles@2
         inputs:

.azure/lint-linux.yml

@@ -28,14 +28,16 @@ jobs:
 
       - bash: |
           set -e
-          python -m pip install --upgrade pip setuptools wheel virtualenv
+          python -m pip install --upgrade pip 'setuptools<64.0.0' wheel virtualenv -c constraints.txt
           virtualenv test-job
           source test-job/bin/activate
           pip install -U -r requirements.txt -r requirements-dev.txt -c constraints.txt
           pip install -U -c constraints.txt -e .
           pip install -U "qiskit-aer" -c constraints.txt
           python setup.py build_ext --inplace
         displayName: 'Install dependencies'
+        env:
+          SETUPTOOLS_ENABLE_FEATURES: "legacy-editable"
 
       - bash: |
           set -e

.azure/test-linux.yml

@@ -62,7 +62,7 @@ jobs:
 
       - bash: |
           set -e
-          python -m pip install --upgrade pip setuptools wheel virtualenv
+          python -m pip install --upgrade pip 'setuptools<64.0.0' wheel virtualenv -c constraints.txt
           virtualenv test-job
         displayName: "Prepare venv"
 
@@ -82,6 +82,9 @@ jobs:
             pip install -U -r requirements.txt -r requirements-dev.txt -c constraints.txt
             pip install -U -c constraints.txt -e .
           displayName: "Install Terra directly"
+          env:
+            SETUPTOOLS_ENABLE_FEATURES: "legacy-editable"
+
 
       - bash: |
           set -e

.azure/test-macos.yml

@@ -41,14 +41,16 @@ jobs:
 
       - bash: |
           set -e
-          python -m pip install --upgrade pip setuptools wheel virtualenv
+          python -m pip install --upgrade pip 'setuptools<64.0.0' wheel virtualenv -c constraints.txt
           virtualenv test-job
           source test-job/bin/activate
           pip install -U -r requirements.txt -r requirements-dev.txt -c constraints.txt
           pip install -U -c constraints.txt -e .
           python setup.py build_ext --inplace
           pip check
         displayName: 'Install dependencies'
+        env:
+          SETUPTOOLS_ENABLE_FEATURES: "legacy-editable"
 
       - bash: |
           set -e

.azure/test-windows.yml

@@ -30,7 +30,7 @@ jobs:
 
       - bash: |
           set -e
-          python -m pip install --upgrade pip setuptools wheel virtualenv
+          python -m pip install --upgrade pip 'setuptools<64.0.0' wheel virtualenv -c constraints.txt
           virtualenv test-job
           source test-job/Scripts/activate
           pip install -r requirements.txt -r requirements-dev.txt -c constraints.txt
@@ -39,6 +39,8 @@ jobs:
           python setup.py build_ext --inplace
           pip check
         displayName: 'Install dependencies'
+        env:
+          SETUPTOOLS_ENABLE_FEATURES: "legacy-editable"
 
       - bash: |
           set -e

.azure/tutorials-linux.yml

@@ -39,6 +39,8 @@ jobs:
           sudo apt-get install -y graphviz pandoc
           pip check
         displayName: 'Install dependencies'
+        env:
+          SETUPTOOLS_ENABLE_FEATURES: "legacy-editable"
 
       - bash: |
           set -e

.github/workflows/coverage.yml

@@ -20,6 +20,8 @@ jobs:
         run: pip install tox coveragepy-lcov
       - name: Run coverage report
         run: tox -ecoverage
+        env:
+          SETUPTOOLS_ENABLE_FEATURES: "legacy-editable"
       - name: Convert to lcov
         run: coveragepy-lcov --output_file_path coveralls.info
       - name: Coveralls

.github/workflows/randomized_tests.yml

@@ -20,6 +20,8 @@ jobs:
           pip install -c constraints.txt -e .
           pip install "qiskit-ibmq-provider" -c constraints.txt
           pip install "qiskit-aer"
+        env:
+          SETUPTOOLS_ENABLE_FEATURES: "legacy-editable"
       - name: Run randomized tests
         run: make test_randomized
       - name: Create comment on failed test run

constraints.txt

@@ -13,3 +13,7 @@ pyparsing<3.0.0
 # to work with the new jinja version (the jinja maintainers aren't going to
 # fix things) pin to the previous working version.
 jinja2==3.0.3
+
+# setuptools 64.0.0 breaks editable installs. Pin to an old version until
+# see https://github.com/pypa/setuptools/issues/3498
+setuptools==63.3.0

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools", "wheel", "setuptools-rust"]
+requires = ["setuptools", "wheel", "setuptools-rust<1.5.0"]
 build-backend = "setuptools.build_meta"
 
 [tool.black]

requirements-dev.txt

@@ -1,4 +1,4 @@
-setuptools-rust
+setuptools-rust<1.5.0
 coverage>=4.4.0
 hypothesis>=4.24.3
 python-constraint>=1.4

tox.ini

@@ -14,7 +14,7 @@ setenv =
   QISKIT_SUPRESS_PACKAGING_WARNINGS=Y
   QISKIT_TEST_CAPTURE_STREAMS=1
   QISKIT_PARALLEL=FALSE
-passenv = RAYON_NUM_THREADS OMP_NUM_THREADS QISKIT_PARALLEL
+passenv = RAYON_NUM_THREADS OMP_NUM_THREADS QISKIT_PARALLEL SETUPTOOLS_ENABLE_FEATURES
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/requirements-dev.txt
 commands =