Feature/isometries

.travis.yml

@@ -42,9 +42,6 @@ install:
   - if [ "${PYTHON:0:1}" = "3" ]; then pip$PY install dormouse; fi
   - pip$PY install -e .
 
-before_script:
-  - "echo 'backend: Agg' > matplotlibrc"
-
 # command to run tests
 script: export OMP_NUM_THREADS=1 && pytest projectq --cov projectq
 

examples/ibm.py

@@ -8,7 +8,7 @@
 import projectq.setups.ibm
 
 
-def run_entangle(eng, num_qubits=3):
+def run_entangle(eng, num_qubits=5):
     """
     Runs an entangling operation on the provided compiler engine.
 

projectq/backends/__init__.py

@@ -27,7 +27,7 @@
 * an interface to the AQT trapped ion system (and simulator).
 """
 from ._printer import CommandPrinter
-from ._circuits import CircuitDrawer, CircuitDrawerMatplotlib
+from ._circuits import CircuitDrawer
 from ._sim import Simulator, ClassicalSimulator
 from ._resource import ResourceCounter
 from ._ibm import IBMBackend

projectq/backends/_circuits/__init__.py

@@ -13,8 +13,4 @@
 #   limitations under the License.
 
 from ._to_latex import to_latex
-from ._plot import to_draw
-
 from ._drawer import CircuitDrawer
-from ._drawer_matplotlib import CircuitDrawerMatplotlib
-

projectq/backends/_circuits/_drawer.py

@@ -15,6 +15,8 @@
 Contains a compiler engine which generates TikZ Latex code describing the
 circuit.
 """
+import sys
+
 from builtins import input
 
 from projectq.cengines import LastEngineException, BasicEngine
@@ -221,13 +223,12 @@ def _print_cmd(self, cmd):
             self._free_lines.append(qubit_id)
 
         if self.is_last_engine and cmd.gate == Measure:
-            assert get_control_count(cmd) == 0
-
+            assert (get_control_count(cmd) == 0)
             for qureg in cmd.qubits:
                 for qubit in qureg:
                     if self._accept_input:
                         m = None
-                        while m not in ('0', '1', 1, 0):
+                        while m != '0' and m != '1' and m != 1 and m != 0:
                             prompt = ("Input measurement result (0 or 1) for "
                                       "qubit " + str(qubit) + ": ")
                             m = input(prompt)