Add a new strict parameter to get_nodes() function

Sometimes, the openstreetmap server is inconsistent in that way that
the list of node ids of a `Way` contains nodes that actually do not exist.

In that case, no nodes of a `Way` will be retrieved even if there are
valid nodes.

You can now set the strict_mode to False so that invalid nodes will be
removed from a Way.

The default behaviour still is to try to retrieve the missing nodes and
if the node does not exist, a DataIncomplete exception is thrown.

Author: larsklitzke

overpy/__about__.py

@@ -13,7 +13,7 @@
 __summary__ = "Python Wrapper to access the OpenStreepMap Overpass API"
 __uri__ = "https://github.com/DinoTools/python-overpy"
 
-__version__ = "0.4"
+__version__ = "0.4.1"
 
 __author__ = "PhiBo (DinoTools)"
 __email__ = ""

overpy/__init__.py

@@ -913,7 +913,7 @@ def nodes(self):
         """
         return self.get_nodes()
 
-    def get_nodes(self, resolve_missing=False):
+    def get_nodes(self, resolve_missing=False, strict_mode=True):
         """
         Get the nodes defining the geometry of the way
 
@@ -937,11 +937,11 @@ def get_nodes(self, resolve_missing=False):
                 result.append(node)
                 continue
 
-            if not resolve_missing:
+            if not resolve_missing and strict_mode:
                 raise exception.DataIncomplete("Resolve missing nodes is disabled")
 
             # We tried to resolve the data but some nodes are still missing
-            if resolved:
+            if resolved and strict_mode:
                 raise exception.DataIncomplete("Unable to resolve all nodes")
 
             query = ("\n"