fix syntaxwarning and apply black style formatting (#121)

* fix syntaxwarning

* black formatting

topojson/core/cut.py

@@ -65,10 +65,10 @@ def to_svg(self, separate=False, include_junctions=False):
         Parameters
         ----------
         separate : boolean
-            If `True`, each of the linestrings will be displayed separately. 
+            If `True`, each of the linestrings will be displayed separately.
             Default is `False`
         include_junctions : boolean
-            If `True`, the detected junctions will be displayed as well. 
+            If `True`, the detected junctions will be displayed as well.
             Default is `False`
         """
         serialize_as_svg(

topojson/core/dedup.py

@@ -45,10 +45,10 @@ def to_svg(self, separate=False, include_junctions=False):
         Parameters
         ----------
         separate : boolean
-            If `True`, each of the linestrings will be displayed separately. 
+            If `True`, each of the linestrings will be displayed separately.
             Default is `False`
         include_junctions : boolean
-            If `True`, the detected junctions will be displayed as well. 
+            If `True`, the detected junctions will be displayed as well.
             Default is `False`
         """
         serialize_as_svg(self.output, separate, include_junctions)
@@ -259,7 +259,7 @@ def _merge_contigious_arcs(self, data, sliced_array_bk_ndp):
     def _pop_merged_arcs(self, bk_dups, linestring_list, array_bk):
         """
         The collected indici that can be popped, since they have been merged
-        This functions looks like _deduplicate(), but is slightly different where 
+        This functions looks like _deduplicate(), but is slightly different where
         vals2pop indici are set to 0 (NaN).
         """
 

topojson/core/extract.py

@@ -29,8 +29,8 @@ class Extract(object):
     with an equivalent `"coordinates"` array that points to one of the
     linestrings as indexed in `bookkeeping_geoms` and stored in `linestrings`.
 
-    For Points geometries count the same, but are stored in `coordinates` and 
-    referenced in `bookkeeping_coords`.    
+    For Points geometries count the same, but are stored in `coordinates` and
+    referenced in `bookkeeping_coords`.
 
     Parameters
     ----------
@@ -59,7 +59,7 @@ def __init__(self, data, options={}):
         self._invalid_geoms = 0
         self._tried_geojson = False
 
-        if instance(data) is "Collection":  # fiona.Collection)
+        if instance(data) == "Collection":  # fiona.Collection
             copydata = data
         else:
             # FIXME: try except is not necessary once the following issue is fixed:
@@ -91,13 +91,13 @@ def to_svg(self, separate=False):
         Parameters
         ----------
         separate : boolean
-            If `True`, each of the linestrings will be displayed separately. 
+            If `True`, each of the linestrings will be displayed separately.
             Default is `False`
         """
         serialize_as_svg(self.output, separate, include_junctions=False)
 
     def _extractor(self, data):
-        """"
+        """
         Entry point for the class Extract.
 
         The extract function is the first step in the topology computation.
@@ -120,7 +120,7 @@ def _extractor(self, data):
         with an equivalent `"coordinates"` array that points to one of the
         linestrings as indexed in `bookkeeping_geoms` and stored in `linestrings`.
 
-        For Points geometries count the same, but are stored in `coordinates` and 
+        For Points geometries count the same, but are stored in `coordinates` and
         referenced in `bookkeeping_coords`.
         """
 
@@ -696,4 +696,3 @@ def _extract_dictionary(self, geom):
             # reset geom collection counter and level
             self._geomcollection_counter = 0
             self._geom_level_1 = 0
-

topojson/core/hashmap.py

@@ -38,7 +38,7 @@ def to_svg(self, separate=False):
         Parameters
         ----------
         separate : boolean
-            If `True`, each of the linestrings will be displayed separately. 
+            If `True`, each of the linestrings will be displayed separately.
             Default is `False`
         """
         serialize_as_svg(self.output, separate, include_junctions=False)
@@ -328,7 +328,7 @@ def _resolve_bookkeeping(self, geoms, key):
             arcs_in_geom = self._data[bk_objects][geom]
             for idx_arc, arc_ref in enumerate(arcs_in_geom):
                 arc_ids = self._data[bk_element][arc_ref]
-                if len(arc_ids) > 1 and key is not "coordinates":
+                if len(arc_ids) > 1 and key != "coordinates":
                     self._inner = True if idx_arc > 0 else False
                     arc_ids = self._backward_arcs(arc_ids)
 

topojson/core/join.py

@@ -79,10 +79,10 @@ def to_svg(self, separate=False, include_junctions=False):
         Parameters
         ----------
         separate : boolean
-            If `True`, each of the linestrings will be displayed separately. 
+            If `True`, each of the linestrings will be displayed separately.
             Default is `False`
         include_junctions : boolean
-            If `True`, the detected junctions will be displayed as well. 
+            If `True`, the detected junctions will be displayed as well.
             Default is `False`
         """
         serialize_as_svg(self.output, separate, include_junctions)
@@ -240,7 +240,7 @@ def _get_verts(geom):
 
     def _validate_linemerge(self, merged_line):
         """
-        Return list of linestrings. If the linemerge was a MultiLineString 
+        Return list of linestrings. If the linemerge was a MultiLineString
         then returns a list of multiple single linestrings
         """