[#35] Clean up NXMap string functions

mappymatch/maps/nx/nx_map.py

@@ -53,6 +53,20 @@ def __init__(self, graph: nx.MultiDiGraph):
         self._nodes = [nid for nid in self.g.nodes()]
         self._roads = self._build_rtree()
 
+    def _strip_verbose_data(self):
+        too_verbose = ('_nodes', '_roads')
+        base_dict = {k: v for k, v in self.__dict__.items() if not k in too_verbose}
+        for label in too_verbose:
+            member_len = len(eval(f'self.{label}'))
+            base_dict[label] = f'list of {member_len} elements'
+        return ', '.join(f'{k}: {v}' for k, v in base_dict.items())
+
+    def __str__(self):
+        return 'NXMap(' + self._strip_verbose_data() + ')'
+
+    def __repr__(self):
+        return 'NXMap(' + self._strip_verbose_data() + ')'
+
     def _build_rtree(self) -> List[Road]:
         road_lookup = []