Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/14567#discussion_r74098782
--- Diff: python/pyspark/context.py ---
@@ -22,22 +22,30 @@
import signal
import sys
import threading
-from threading import RLock
from tempfile import NamedTemporaryFile
+from threading import RLock
from pyspark import accumulators
from pyspark.accumulators import Accumulator
from pyspark.broadcast import Broadcast
from pyspark.conf import SparkConf
from pyspark.files import SparkFiles
from pyspark.java_gateway import launch_gateway
-from pyspark.serializers import PickleSerializer, BatchedSerializer,
UTF8Deserializer, \
- PairDeserializer, AutoBatchedSerializer, NoOpSerializer
-from pyspark.storagelevel import StorageLevel
-from pyspark.rdd import RDD, _load_from_socket, ignore_unicode_prefix
-from pyspark.traceback_utils import CallSite, first_spark_call
+from pyspark.profiler import BasicProfiler
+from pyspark.profiler import ProfilerCollector
+from pyspark.rdd import RDD
+from pyspark.rdd import _load_from_socket
+from pyspark.rdd import ignore_unicode_prefix
+from pyspark.serializers import AutoBatchedSerializer
--- End diff --
Expanding these multiple imports seems counter-productive. We don't do it
in Scala (and in Java you can only import one thing or everything). Is this
important/canonical for PEP8?
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