问linux下Python运行pyspark时报错？

from pyspark import SparkContext
sc = SparkContext( 'local', 'test')
logFile = "file:\\usr\\local\\spark\\README.md"
logData = sc.textFile(logFile, 2).cache()
numAs = logData.filter(lambda line: 'a' in line).count()
numBs = logData.filter(lambda line: 'b' in line).count()
print('Lines with a: %s, Lines with b: %s' % (numAs, numBs))

:~$ python3 ~/test.py
2020-05-24 13:03:45,852 WARN util.Utils: Your hostname, zhangyunhu-virtual-machine resolves to a loopback address: 127.0.1.1; using 192.168.242.128 instead (on interface ens33)
2020-05-24 13:03:45,866 WARN util.Utils: Set SPARK_LOCAL_IP if you need to bind to another address
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.apache.spark.unsafe.Platform (file:/usr/local/spark/jars/spark-unsafe_2.11-2.4.5.jar) to method java.nio.Bits.unaligned()
WARNING: Please consider reporting this to the maintainers of org.apache.spark.unsafe.Platform
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
2020-05-24 13:03:47,106 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Setting default log level to "WARN".
To adjust logging level use sc.setLogLevel(newLevel). For SparkR, use setLogLevel(newLevel).
Traceback (most recent call last):
  File "/home/hadoop/test.py", line 5, in <module>
    numAs = logData.filter(lambda line: 'a' in line).count()
  File "/usr/local/spark/python/pyspark/rdd.py", line 1055, in count
    return self.mapPartitions(lambda i: [sum(1 for _ in i)]).sum()
  File "/usr/local/spark/python/pyspark/rdd.py", line 1046, in sum
    return self.mapPartitions(lambda x: [sum(x)]).fold(0, operator.add)
  File "/usr/local/spark/python/pyspark/rdd.py", line 917, in fold
    vals = self.mapPartitions(func).collect()
  File "/usr/local/spark/python/pyspark/rdd.py", line 816, in collect
    sock_info = self.ctx._jvm.PythonRDD.collectAndServe(self._jrdd.rdd())
  File "/usr/local/spark/python/lib/py4j-0.10.7-src.zip/py4j/java_gateway.py", line 1257, in __call__
  File "/usr/local/spark/python/lib/py4j-0.10.7-src.zip/py4j/protocol.py", line 328, in get_return_value
py4j.protocol.Py4JJavaError: An error occurred while calling z:org.apache.spark.api.python.PythonRDD.collectAndServe.
: java.lang.IllegalArgumentException: java.net.URISyntaxException: Relative path in absolute URI: file:%5Cusr%5Clocal%5Cspark%5CREADME.md
	at org.apache.hadoop.fs.Path.initialize(Path.java:263)
	at org.apache.hadoop.fs.Path.<init>(Path.java:221)
	at org.apache.hadoop.util.StringUtils.stringToPath(StringUtils.java:254)
	at org.apache.hadoop.mapred.FileInputFormat.setInputPaths(FileInputFormat.java:436)
	at org.apache.spark.SparkContext$$anonfun$hadoopFile$1$$anonfun$30.apply(SparkContext.scala:1036)
	at org.apache.spark.SparkContext$$anonfun$hadoopFile$1$$anonfun$30.apply(SparkContext.scala:1036)
	at org.apache.spark.rdd.HadoopRDD$$anonfun$getJobConf$5$$anonfun$apply$3.apply(HadoopRDD.scala:180)
	at org.apache.spark.rdd.HadoopRDD$$anonfun$getJobConf$5$$anonfun$apply$3.apply(HadoopRDD.scala:180)
	at scala.Option.foreach(Option.scala:257)
	at org.apache.spark.rdd.HadoopRDD$$anonfun$getJobConf$5.apply(HadoopRDD.scala:180)
	at org.apache.spark.rdd.HadoopRDD$$anonfun$getJobConf$5.apply(HadoopRDD.scala:177)
	at scala.Option.getOrElse(Option.scala:121)
	at org.apache.spark.rdd.HadoopRDD.getJobConf(HadoopRDD.scala:171)
	at org.apache.spark.rdd.HadoopRDD.getPartitions(HadoopRDD.scala:200)
	at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:273)
	at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:269)
	at scala.Option.getOrElse(Option.scala:121)
	at org.apache.spark.rdd.RDD.partitions(RDD.scala:269)
	at org.apache.spark.rdd.MapPartitionsRDD.getPartitions(MapPartitionsRDD.scala:49)
	at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:273)
	at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:269)
	at scala.Option.getOrElse(Option.scala:121)
	at org.apache.spark.rdd.RDD.partitions(RDD.scala:269)
	at org.apache.spark.api.python.PythonRDD.getPartitions(PythonRDD.scala:55)
	at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:273)
	at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:269)
	at scala.Option.getOrElse(Option.scala:121)
	at org.apache.spark.rdd.RDD.partitions(RDD.scala:269)
	at org.apache.spark.SparkContext.runJob(SparkContext.scala:2126)
	at org.apache.spark.rdd.RDD$$anonfun$collect$1.apply(RDD.scala:990)
	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151)
	at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:112)
	at org.apache.spark.rdd.RDD.withScope(RDD.scala:385)
	at org.apache.spark.rdd.RDD.collect(RDD.scala:989)
	at org.apache.spark.api.python.PythonRDD$.collectAndServe(PythonRDD.scala:166)
	at org.apache.spark.api.python.PythonRDD.collectAndServe(PythonRDD.scala)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:564)
	at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
	at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357)
	at py4j.Gateway.invoke(Gateway.java:282)
	at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
	at py4j.commands.CallCommand.execute(CallCommand.java:79)
	at py4j.GatewayConnection.run(GatewayConnection.java:238)
	at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: java.net.URISyntaxException: Relative path in absolute URI: file:%5Cusr%5Clocal%5Cspark%5CREADME.md
	at java.base/java.net.URI.checkPath(URI.java:1965)
	at java.base/java.net.URI.<init>(URI.java:780)
	at org.apache.hadoop.fs.Path.initialize(Path.java:260)
	... 46 more