diff --git a/rethinkdb/ast.py b/rethinkdb/ast.py
index 3b9fddc6..7bd73b0c 100644
--- a/rethinkdb/ast.py
+++ b/rethinkdb/ast.py
@@ -20,13 +20,21 @@
import base64
import binascii
-import collections
import datetime
import json
+import sys
import threading
from rethinkdb import ql2_pb2
-from rethinkdb.errors import QueryPrinter, ReqlDriverCompileError, ReqlDriverError, T
+from rethinkdb.errors import (QueryPrinter, ReqlDriverCompileError,
+ ReqlDriverError, T)
+
+if sys.version_info < (3, 3):
+ # python < 3.3 uses collections
+ import collections
+else:
+ # but collections is deprecated from python >= 3.3
+ import collections.abc as collections
P_TERM = ql2_pb2.Term.TermType
@@ -74,7 +82,7 @@ def clear(cls):
def expr(val, nesting_depth=20):
"""
- Convert a Python primitive into a RQL primitive value
+ Convert a Python primitive into a RQL primitive value
"""
if not isinstance(nesting_depth, int):
raise ReqlDriverCompileError("Second argument to `r.expr` must be a number.")
@@ -759,7 +767,7 @@ def recursively_make_hashable(obj):
class ReQLEncoder(json.JSONEncoder):
"""
- Default JSONEncoder subclass to handle query conversion.
+ Default JSONEncoder subclass to handle query conversion.
"""
def __init__(self):
@@ -779,7 +787,7 @@ def default(self, obj):
class ReQLDecoder(json.JSONDecoder):
"""
- Default JSONDecoder subclass to handle pseudo-type conversion.
+ Default JSONDecoder subclass to handle pseudo-type conversion.
"""
def __init__(self, reql_format_opts=None):
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