/Users/shane/git/mongo-python-driver/bson/json_util.py:711: SyntaxWarning: "is not" with a literal. Did you mean "!="?
if doc['$maxKey'] is not 1:

/Users/shane/git/mongo-python-driver/test/test_custom_types.py:516: SyntaxWarning: invalid escape sequence \(
  "are encoded \(encoder .* transforms type .*\)")
/Users/shane/git/mongo-python-driver/test/test_database.py:1057: SyntaxWarning: invalid escape sequence \(
  err_msg = "Database.aggregate\(\) is only supported on MongoDB 3.6\+."
/Users/shane/git/mongo-python-driver/test/test_encryption.py:677: SyntaxWarning: invalid escape sequence \[
  'requires that type is one of: \[ string \]')

/Users/shane/git/mongo-python-driver/test/utils.py:582: DeprecationWarning: isAlive() is deprecated, use is_alive() instead
  assert not t.isAlive(), "Thread %s hung" % t

/Users/shane/git/mongo-python-driver/pymongo/database.py:822: SyntaxWarning: invalid escape sequence \.
  """Get a list of all the collection names in this database.

/Users/shane/git/mongo-python-driver/pymongo/message.py:705: DeprecationWarning: PY_SSIZE_T_CLEAN will be required for '#' formats
  return _op_msg_uncompressed(