Pin cvxpy in CI (qiskit-community#554)

* Pin cvxpy in CI

The latest cvxpy version is causing CI faiulres because of their change
in the numpy dependency. This commit pins cvxpy to the previous release
where things were known to be working.

* Install cvxpy later

* Fix execute import

* Remove machine learning from tutorials

* Install cvxpy last

* Remove algorithms tutorials too

* Use int instead of np.int

* Use float instead of deprecated np.float

* Don't use scs on mac

* Fix typo

.github/workflows/main.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         python-version: [3.6, 3.7, 3.8, 3.9]
-        os: ["macOS-latest", "ubuntu-latest"]
+        os: ["ubuntu-latest"]
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python ${{ matrix.python-version }}
@@ -36,6 +36,37 @@ jobs:
         run: tox -e py39
         if: matrix.python-version == '3.9'
 
+  tests-macos:
+    name: tests-python${{ matrix.python-version }}-${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        python-version: [3.6, 3.7, 3.8, 3.9]
+        os: ["macOS-latest"]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Pip cache
+        uses: actions/cache@v2
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-${{ matrix.python-version }}-pip-tests-${{ hashFiles('setup.py','requirements-dev.txt','constraints.txt') }}
+          restore-keys: |
+            ${{ runner.os }}-${{ matrix.python-version }}-pip-tests-
+            ${{ runner.os }}-${{ matrix.python-version }}-pip-
+            ${{ runner.os }}-${{ matrix.python-version }}
+      - name: Install Deps
+        run: python -m pip install -U tox setuptools virtualenv wheel cvxopt
+      - name: Install and Run Tests
+        run: tox --sitepackages -e py
+        if: matrix.python-version != '3.9'
+      - name: Install and Run Tests
+        run: tox --sitepackages -e py39
+        if: matrix.python-version == '3.9'
+
   tests-no-opt:
     name: tests-python3.8-no-optional-dependencies
     runs-on: ${{ matrix.os }}
@@ -178,7 +209,7 @@ jobs:
         run: |
           set -e
           cd qiskit-tutorials
-          rm -rf tutorials/chemistry tutorials/circuits tutorials/circuits_advanced tutorials/finance tutorials/optimization tutorials/simulators
+          rm -rf tutorials/chemistry tutorials/circuits tutorials/circuits_advanced tutorials/finance tutorials/optimization tutorials/simulators tutorials/machine_learning tutorials/algorithms
           sphinx-build -b html . _build/html
       - uses: actions/upload-artifact@v2
         with:

constraints.txt

@@ -3,3 +3,4 @@ astroid==2.3.3
 pywin32==225
 setuptools==49.6.0
 pyfakefs==4.1.0
+cvxpy==1.1.7

qiskit/ignis/mitigation/expval/ctmp_mitigator.py

@@ -131,8 +131,8 @@ def expectation_value(self,
         gamma = self.noise_strength(qubits)
         bmat = self._sampling_matrix(qubits)
         values = bmat.data
-        indices = np.asarray(bmat.indices, dtype=np.int)
-        indptrs = np.asarray(bmat.indptr, dtype=np.int)
+        indices = np.asarray(bmat.indices, dtype=int)
+        indptrs = np.asarray(bmat.indptr, dtype=int)
 
         # Set a minimum number of CTMP samples
         shots = sum(counts.values())
@@ -184,7 +184,7 @@ def generator_matrix(self, qubits: List[int] = None) -> sps.coo_matrix:
         if qubits not in self._generator_mats:
             # Construct G from subset generators
             qubits_set = set(qubits)
-            g_mat = sps.coo_matrix(2 * (2**len(qubits),), dtype=np.float)
+            g_mat = sps.coo_matrix(2 * (2**len(qubits),), dtype=float)
             for gen, rate in zip(self._generators, self._rates):
                 if qubits_set.issuperset(gen[2]):
                     # Keep generator
@@ -301,7 +301,7 @@ def _ctmp_inverse(
 
         # Apply CTMP sampling
         r_vals = rng.random(size=alphas.sum())
-        y_vals = np.zeros(x_vals.size, dtype=np.int)
+        y_vals = np.zeros(x_vals.size, dtype=int)
         _markov_chain_compiled(y_vals, x_vals, r_vals, alphas, csc_data, csc_indices,
                                csc_indptrs)
 

test/verification/test_entanglement.py

@@ -22,7 +22,7 @@
 
 import numpy as np
 
-from qiskit.execute import execute
+from qiskit import execute
 from qiskit.providers.basicaer import BasicAer
 from qiskit.ignis.verification.entanglement import linear
 

tox.ini

@@ -10,14 +10,14 @@ setenv =
   VIRTUAL_ENV={envdir}
   LANGUAGE=en_US
   LC_ALL=en_US.utf-8
-deps = numpy>=1.13
+deps = numpy>=1.16.3
        Cython>=0.27.1
        setuptools>=40.1.0
-       cvxpy>=1.0.15
 passenv = QISKIT_IN_PARALLEL
 commands =
     pip install -U -c constraints.txt git+https://github.com/Qiskit/qiskit-terra.git
     pip install -U -c constraints.txt -r{toxinidir}/requirements-dev.txt
+    pip install -c constraints.txt cvxpy<1.1.8
     pip check
     stestr run {posargs}
 # Remove after qiskit-aer 0.8.0 release:
@@ -26,6 +26,7 @@ commands =
     pip install -U -c constraints.txt git+https://github.com/Qiskit/qiskit-terra.git
     pip install -U -c constraints.txt git+https://github.com/Qiskit/qiskit-aer.git
     pip install -U -c constraints.txt -r{toxinidir}/requirements-dev.txt
+    pip install -c constraints.txt cvxpy<1.1.8
     pip check
     stestr run {posargs}