Relaxing data type restriction for Map location param.

Author: dskkato

folium/folium.py

@@ -231,7 +231,7 @@ def __init__(self, location=None, width='100%', height='100%',
         self._png_image = None
         self.png_enabled = png_enabled
 
-        if not location:
+        if location is None:
             # If location is not passed we center and zoom out.
             self.location = [0, 0]
             self.zoom_start = 1

folium/utilities.py

@@ -28,8 +28,8 @@ def _validate_location(location):
     if _isnan(location):
         raise ValueError('Location values cannot contain NaNs, '
                          'got {!r}'.format(location))
-    if type(location) not in [list, tuple]:
-        raise TypeError('Expected tuple/list for location, got '
+    if isinstance(type(location), collections.abc.Iterable):
+        raise TypeError('Expected Iterable object for location, got '
                         '{!r}'.format(location))
 
     if len(location) != 2: