Addressed comments in PR: changed insert_many() to accept any iterable.

Author: ameily

pymongo/collection.py

@@ -16,7 +16,6 @@
 
 import collections
 import warnings
-from types import GeneratorType
 
 from bson.code import Code
 from bson.objectid import ObjectId
@@ -469,7 +468,7 @@ def insert_one(self, document):
  self.write_concern.acknowledged)
 
  def insert_many(self, documents, ordered=True):
- """Insert a list or generator of documents.
+ """Insert an iterable of documents.
 
  >>> db.test.count()
  0
@@ -480,7 +479,7 @@ def insert_many(self, documents, ordered=True):
  2
 
  :Parameters:
- - `documents`: A list or generator of documents to insert.
+ - `documents`: A iterable of documents to insert.
  - `ordered` (optional): If ``True`` (the default) documents will be
  inserted on the server serially, in the order provided. If an error
  occurs all remaining inserts are aborted. If ``False``, documents
@@ -492,7 +491,7 @@ def insert_many(self, documents, ordered=True):
 
  .. versionadded:: 3.0
  """
- if not isinstance(documents, (list, GeneratorType)) or not documents:
+ if not isinstance(documents, collections.Iterable) or not documents:
  raise TypeError("documents must be a non-empty list")
  inserted_ids = []
  def gen():