PEP8-linting complete.

docs/conf.py

@@ -33,7 +33,7 @@
 import sphinx_rtd_theme
 
 extensions = [
-    'sphinx.ext.autodoc','sphinx.ext.napoleon', 'sphinx.ext.mathjax'
+    'sphinx.ext.autodoc', 'sphinx.ext.napoleon', 'sphinx.ext.mathjax'
 ]
 
 # Add any paths that contain templates here, relative to this directory.
@@ -154,8 +154,8 @@
 # html_logo = None
 
 # The name of an image file (relative to this directory) to use as a favicon of
-# the docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
-# pixels large.
+# the docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x
+# 32 pixels large.
 #
 # html_favicon = None
 
@@ -247,21 +247,21 @@
 # -- Options for LaTeX output ---------------------------------------------
 
 latex_elements = {
-     # The paper size ('letterpaper' or 'a4paper').
-     #
-     # 'papersize': 'letterpaper',
+    # The paper size ('letterpaper' or 'a4paper').
+    #
+    # 'papersize': 'letterpaper',
 
-     # The font size ('10pt', '11pt' or '12pt').
-     #
-     # 'pointsize': '10pt',
+    # The font size ('10pt', '11pt' or '12pt').
+    #
+    # 'pointsize': '10pt',
 
-     # Additional stuff for the LaTeX preamble.
-     #
-     # 'preamble': '',
+    # Additional stuff for the LaTeX preamble.
+    #
+    # 'preamble': '',
 
-     # Latex figure (float) alignment
-     #
-     # 'figure_align': 'htbp',
+    # Latex figure (float) alignment
+    #
+    # 'figure_align': 'htbp',
 }
 
 # Grouping the document tree into LaTeX files. List of tuples

examples/shor.py

@@ -130,15 +130,15 @@ def high_level_gates(eng, cmd):
         # try to determine the factors
         if r % 2 != 0:
             r *= 2
-        apowrhalf = pow(a, r>>1, N)
-        f1 = gcd(apowrhalf+1, N)
-        f2 = gcd(apowrhalf-1, N)
+        apowrhalf = pow(a, r >> 1, N)
+        f1 = gcd(apowrhalf + 1, N)
+        f2 = gcd(apowrhalf - 1, N)
         if ((not f1 * f2 == N) and f1 * f2 > 1
-            and int(1. * N / (f1 * f2)) * f1 * f2 == N):
+           and int(1. * N / (f1 * f2)) * f1 * f2 == N):
             f1, f2 = f1*f2, int(N/(f1*f2))
         if f1 * f2 == N and f1 > 1 and f2 > 1:
             print("\n\n\t\033[92mFactors found :-) : {} * {} = {}\033[0m"
-                   .format(f1, f2, N))
+                  .format(f1, f2, N))
         else:
             print("\n\n\t\033[91mBad luck: Found {} and {}\033[0m".format(f1,
                                                                           f2))

projectq/backends/_ibm/_ibm_http_client_test.py

@@ -67,8 +67,8 @@ def raise_for_status(self):
 
         # Accessing status of device. Return online.
         if (args[0] == urljoin(_api_url_status, "Status/queue") and
-            kwargs["params"]["device"] == "chip_real" and
-            request_num[0] == 0):
+           kwargs["params"]["device"] == "chip_real" and
+           request_num[0] == 0):
             request_num[0] += 1
             return MockResponse({"state": True}, 200)
         # Getting result
@@ -168,7 +168,7 @@ def json(self):
 
         # Accessing status of device. Return online.
         if (args[0] == urljoin(_api_url_status, "Status/queue") and
-            kwargs["params"]["device"] == "chip_real"):
+           kwargs["params"]["device"] == "chip_real"):
             return MockResponse({"state": False}, 200)
     monkeypatch.setattr("requests.get", mocked_requests_get)
     shots = 1
@@ -193,7 +193,7 @@ def json(self):
 
         # Accessing status of device. Return online.
         if (args[0] == urljoin(_api_url_status, "Status/queue") and
-            kwargs["params"]["device"] == "chip_real"):
+           kwargs["params"]["device"] == "chip_real"):
             return MockResponse({"state": True}, 200)
 
     def mocked_requests_post(*args, **kwargs):
@@ -234,7 +234,7 @@ def json(self):
 
         # Accessing status of device. Return online.
         if (args[0] == urljoin(_api_url_status, "Status/queue") and
-            kwargs["params"]["device"] == "chip_real"):
+           kwargs["params"]["device"] == "chip_real"):
             return MockResponse({"state": True}, 200)
 
     def mocked_requests_post(*args, **kwargs):
@@ -275,7 +275,7 @@ def json(self):
 
         # Accessing status of device. Return online.
         if (args[0] == urljoin(_api_url_status, "Status/queue") and
-            kwargs["params"]["device"] == "chip_real"):
+           kwargs["params"]["device"] == "chip_real"):
             return MockResponse({"state": True}, 200)
 
     def mocked_requests_post(*args, **kwargs):

projectq/backends/_sim/_simulator.py

@@ -96,8 +96,8 @@ def is_available(self, cmd):
             True if it can be simulated and False otherwise.
         """
         if (cmd.gate == Measure or cmd.gate == Allocate
-            or cmd.gate == Deallocate
-            or isinstance(cmd.gate, BasicMathGate)):
+           or cmd.gate == Deallocate
+           or isinstance(cmd.gate, BasicMathGate)):
             return True
         try:
             m = cmd.gate.matrix

projectq/setups/__init__.py

@@ -9,4 +9,3 @@
 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 #   See the License for the specific language governing permissions and
 #   limitations under the License.
-

projectq/setups/decompositions/__init__.py

@@ -9,4 +9,3 @@
 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 #   See the License for the specific language governing permissions and
 #   limitations under the License.
-

projectq/setups/decompositions/_gates_test.py

@@ -43,7 +43,7 @@ def low_level_gates(eng, cmd):
         return True
     if len(cmd.control_qubits) == 0:
         if (g == T or g == Tdag or g == H or isinstance(g, Rz)
-            or isinstance(g, Ph)):
+           or isinstance(g, Ph)):
             return True
     else:
         if len(cmd.control_qubits) == 1 and cmd.gate == X:
@@ -70,8 +70,8 @@ def low_level_gates_noglobalphase(eng, cmd):
 
 def test_globalphase():
     dummy = DummyEngine(save_commands=True)
-    eng = MainEngine(dummy, [AutoReplacer(),
-                           InstructionFilter(low_level_gates_noglobalphase)])
+    filter_engine = InstructionFilter(low_level_gates_noglobalphase)
+    eng = MainEngine(dummy, [AutoReplacer(), filter_engine])
 
     qubit = eng.allocate_qubit()
     R(1.2) | qubit
@@ -105,7 +105,7 @@ def test_gate_decompositions():
 
     sim2 = Simulator()
     eng_lowlevel = MainEngine(sim2, [AutoReplacer(),
-                                    InstructionFilter(low_level_gates)])
+                                     InstructionFilter(low_level_gates)])
     qureg2 = run_circuit(eng_lowlevel)
 
     for i in range(len(sim.cheat()[1])):

setup.py

@@ -11,6 +11,7 @@
 # Readme file as long_description:
 long_description = open('README.rst').read()
 
+
 class get_pybind_include(object):
     """Helper class to determine the pybind11 include path
 
@@ -33,7 +34,7 @@ def __str__(self):
         Extension(
             'projectq.backends._sim._cppsim',
             ['projectq/backends/_sim/_cppsim.cpp'],
-                include_dirs=[
+            include_dirs=[
                 # Path to pybind11 headers
                 get_pybind_include(),
                 get_pybind_include(user=True)
@@ -110,7 +111,7 @@ def build_extensions(self):
         elif has_flag(self.compiler, '-openmp'):
             openmp = '-openmp'
         if ct == 'msvc':
-            openmp = '' # supports only OpenMP 2.0
+            openmp = ''  # supports only OpenMP 2.0
 
         if knows_intrinsics(self.compiler):
             opts.append('-DINTRIN')
@@ -125,12 +126,14 @@ def build_extensions(self):
                 self.warning("Compiler needs to have C++11 support!")
                 return
 
-            opts.append('-DVERSION_INFO="%s"' % self.distribution.get_version())
+            opts.append('-DVERSION_INFO="%s"'
+                        % self.distribution.get_version())
             opts.append('-std=c++11')
             if has_flag(self.compiler, '-fvisibility=hidden'):
                 opts.append('-fvisibility=hidden')
         elif ct == 'msvc':
-            opts.append('/DVERSION_INFO=\\"%s\\"' % self.distribution.get_version())
+            opts.append('/DVERSION_INFO=\\"%s\\"'
+                        % self.distribution.get_version())
         for ext in self.extensions:
             ext.extra_compile_args = opts
             ext.extra_link_args = [openmp]
@@ -142,8 +145,8 @@ def build_extensions(self):
     def warning(self, warning_text):
         Exception(warning_text + "\nCould not install the C++-Simulator.\n"
                   "ProjectQ will default to the (slow) Python simulator.\n"
-                  "Use --without-cppsimulator to skip building the (faster) C++"
-                  " version of the simulator.")
+                  "Use --without-cppsimulator to skip building the (faster) "
+                  "C++ version of the simulator.")
 
 
 setup(
@@ -153,11 +156,11 @@ def warning(self, warning_text):
     author_email='info@projectq.ch',
     url='http://www.projectq.ch',
     description=('ProjectQ - '
-                'An open source software framework for quantum computing'),
+                 'An open source software framework for quantum computing'),
     long_description=long_description,
     features={'cppsimulator': cppsim},
     install_requires=['numpy', 'future', 'pytest>=3.0',
-                      'pybind11>=1.7','requests'],
+                      'pybind11>=1.7', 'requests'],
     cmdclass={'build_ext': BuildExt},
     zip_safe=False,
     license='Apache 2',