flake8 errors fixed

theano/tensor/blas_headers.py

@@ -981,9 +981,8 @@ def blas_header_text():
                     }
                     """)
 
-   
     header += gemm_code
-    return header % {'const':const}
+    return header % {'const': const}
 
 
 def mkl_threads_text():

theano/tensor/nnet/opt.py

@@ -116,7 +116,7 @@ def local_abstractconv3d_gemm(node):
 
 @local_optimizer([AbstractConv2d_gradWeights])
 def local_abstractconv_gradweight_gemm(node):
-    if theano.config.cxx == "" : # or not theano.config.blas.ldflags:
+    if theano.config.cxx == "":  # or not theano.config.blas.ldflags:
         return
     if not isinstance(node.op, AbstractConv2d_gradWeights):
         return None
@@ -166,7 +166,7 @@ def local_abstractconv3d_gradweight_gemm(node):
 
 @local_optimizer([AbstractConv2d_gradInputs])
 def local_abstractconv_gradinputs_gemm(node):
-    if theano.config.cxx == "" : # or not theano.config.blas.ldflags:
+    if theano.config.cxx == "":  # or not theano.config.blas.ldflags:
         return
     if not isinstance(node.op, AbstractConv2d_gradInputs):
         return None

theano/tensor/nnet/tests/test_abstract_conv.py

@@ -419,7 +419,7 @@ class TestCorrConv2d(BaseTestConv2d):
 
     def tcase(self, i, f, s, b, flip, provide_shape, fd=(1, 1)):
         o = self.get_output_shape(i, f, s, b, fd)
-        #if (not theano.config.blas.ldflags or
+        # if (not theano.config.blas.ldflags or
         if (not theano.config.cxx or
                 theano.config.mode == "FAST_COMPILE"):
             raise SkipTest("Need blas to test conv2d")