FIX: PEP8 - E711 comparison to None should be 'if cond is (not) None:'

Author: miykael

nipype/external/provcopy.py

@@ -1820,7 +1820,7 @@ def add_bundle(self, bundle, identifier=None):
         '''Add a bundle to the current document
         '''
 
-        if identifier == None:
+        if identifier is None:
             identifier = bundle.get_identifier()
 
         if not identifier:

nipype/interfaces/fsl/utils.py

@@ -1502,7 +1502,7 @@ class Complex(FSLCommand):
     output_spec = ComplexOuputSpec
 
     def _parse_inputs(self, skip=None):
-        if skip == None:
+        if skip is None:
             skip = []
         if self.inputs.real_cartesian:
             skip += self.inputs._ofs[:3]

nipype/interfaces/traits_extension.py

@@ -239,13 +239,13 @@ def has_metadata(trait, metadata, value=None, recursive=True):
     Checks if a given trait has a metadata (and optionally if it is set to particular value)
     '''
     count = 0
-    if hasattr(trait, "_metadata") and metadata in list(trait._metadata.keys()) and (trait._metadata[metadata] == value or value == None):
+    if hasattr(trait, "_metadata") and metadata in list(trait._metadata.keys()) and (trait._metadata[metadata] == value or value is None):
         count += 1
     if recursive:
         if hasattr(trait, 'inner_traits'):
             for inner_trait in trait.inner_traits():
                 count += has_metadata(inner_trait.trait_type, metadata, recursive)
-        if hasattr(trait, 'handlers') and trait.handlers != None:
+        if hasattr(trait, 'handlers') and trait.handlers is not None:
             for handler in trait.handlers:
                 count += has_metadata(handler, metadata, recursive)
 

nipype/pipeline/utils.py

@@ -894,11 +894,11 @@ def _transpose_iterables(fields, values):
         for key, tuples in list(values.items()):
             for kvals in tuples:
                 for idx, val in enumerate(kvals):
-                    if val != None:
+                    if val is not None:
                         transposed[fields[idx]][key].append(val)
         return list(transposed.items())
     else:
-        return list(zip(fields, [[v for v in list(transpose) if v != None]
+        return list(zip(fields, [[v for v in list(transpose) if v is not None]
                                  for transpose in zip(*values)]))