我尝试将一个json文件从google bucket读入本地spark机器上的pyspark dataframe。代码如下：

import pandas as pd
import numpy as np

from pyspark import SparkContext, SparkConf
from pyspark.sql import SparkSession, SQLContext

conf = SparkConf().setAll([('spark.executor.memory', '16g'),
                        ('spark.executor.cores','4'),
                         ('spark.cores.max','4')]).setMaster('local[*]')

spark = (SparkSession.
              builder.
              config(conf=conf).
              getOrCreate())

sc = spark.sparkContext

import glob
import bz2
import json
import pickle

bucket_path = "gs://<SOME_PATH>/"
client = storage.Client(project='<SOME_PROJECT>')
bucket = client.get_bucket ('<SOME_PATH>')
blobs = bucket.list_blobs()

theframes = []

for blob in blobs:
    print(blob.name)        
    testspark = spark.read.json(bucket_path + blob.name).cache()
    theframes.append(testspark)

它从bucket阅读文件很好（我可以从www.example.com看到打印输出blob.name），但然后像这样崩溃：

Traceback (most recent call last):
 File "test_code.py", line 66, in <module>
   testspark = spark.read.json(bucket_path + blob.name).cache()
 File "/home/anaconda3/envs/py37base/lib/python3.6/site-packages/pyspark/sql/readwriter.py", line 274, in json
return self._df(self._jreader.json(self._spark._sc._jvm.PythonUtils.toSeq(path)))
 File "/home/anaconda3/envs/py37base/lib/python3.6/site-packages/py4j/java_gateway.py", line 1257, in __call__
answer, self.gateway_client, self.target_id, self.name)
 File "/home/anaconda3/envs/py37base/lib/python3.6/site-packages/pyspark/sql/utils.py", line 63, in deco
return f(*a, **kw)
 File "/home/anaconda3/envs/py37base/lib/python3.6/site-packages/py4j/protocol.py", line 328, in get_return_value
format(target_id, ".", name), value)
py4j.protocol.Py4JJavaError: An error occurred while calling o51.json.
: java.io.IOException: No FileSystem for scheme: gs

我在stackoverflow上看到过这种类型的错误，但大多数解决方案似乎都是在Scala中，而我有pyspark，和/或涉及到与core-site.xml的混乱，我已经做了没有效果。
我用的是spark 2.4.1和python 3.6.7。
帮助将不胜感激！