Traceback (most recent call last): File "/home/atguigu/tmdb/analyst.py", line 151, in <module> save(base + m[k]["path"], json.dumps(f())) File "/home/atguigu/tmdb/analyst.py", line 29, in countByGenres res = countByJson("genres").collect() File "/home/atguigu/tmdb/analyst.py", line 23, in countByJson return mdf.select(field).filter(mdf[field] != ' ').rdd.flatMap(lambda g: [(v, 1) for v in map(lambda x: x['name'], json.loads(g[field]))]).repartition(1).reduceByKey(lambda x, y: x + y) File "/usr/local/spark/python/lib/pyspark.zip/pyspark/rdd.py", line 1625, in reduceByKey File "/usr/local/spark/python/lib/pyspark.zip/pyspark/rdd.py", line 1853, in combineByKey File "/usr/local/spark/python/lib/pyspark.zip/pyspark/rdd.py", line 2263, in _defaultReducePartitions File "/usr/local/spark/python/lib/pyspark.zip/pyspark/rdd.py", line 391, in getNumPartitions 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/pyspark.zip/pyspark/sql/utils.py", line 79, in deco pyspark.sql.utils.IllegalArgumentException: 'Invalid start or len parameter'

这是一个 Python 错误，看起来是在对一个 RDD 进行 reduceByKey 操作时出现了问题。具体的错误信息是 'Invalid start or len parameter'，可能是由于某个参数传递错误导致的。需要检查代码中对该 RDD 的操作是否正确，例如过滤掉不合法的数据或者对数据进行预处理等。建议逐行检查代码，找出出错的具体位置，并逐步排除错误。

相关问题

Here is the output from the autograder: --- Autodriver: Job exited with status 0 Exception checked Traceback (most recent call last): File "/home/autograde/autolab/judge/stu.py", line 1, in <module> a,b=input().split() EOFError: EOF when reading a line [[question]] 1101111001101 1000001001100 [[answer]] 10110000011001 Exception checked Traceback (most recent call last): File "/home/autograde/autolab/judge/stu.py", line 1, in <module> a,b=input().split() EOFError: EOF when reading a line [[question]] 1111000101000 1000101100110 [[answer]] 10111110001110 Exception checked Traceback (most recent call last): File "/home/autograde/autolab/judge/stu.py", line 1, in <module> a,b=input().split() EOFError: EOF when reading a line [[question]] 1110110100100 10100001001 [[answer]] 10001010101101 Exception checked Traceback (most recent call last): File "/home/autograde/autolab/judge/stu.py", line 1, in <module> a,b=input().split() EOFError: EOF when reading a line [[question]] 1000101010001 10011001111 [[answer]] 1011000100000 Exception checked Traceback (most recent call last): File "/home/autograde/autolab/judge/stu.py", line 1, in <module> a,b=input().split() EOFError: EOF when reading a line [[question]] 1111101001001 1000010000111 [[answer]] 10111111010000 {"scores": {"Correctness": 0}}

看起来你的程序在运行时遇到了一个输入错误，导致输出了一个异常。这个异常是 EOFError，它表示程序在尝试读取输入时已经到达了文件的末尾。你需要确保你的程序在接收输入时，能够正确处理输入结束的情况。建议你检查你的程序并确保它能够正确地处理输入和输出。此外，你还需要检查一下你的程序是否按照要求输出了正确的答案。最后，你可以再次运行自动评分器以检查你的程序是否已经修复了这个问题。

Traceback (most recent call last): File "C:/Python38/pythonProject/poi.py", line 60, in <module> jsonf = urllib.urlopen(url) Traceback (most recent call last): File "C:/Python38/pythonProject/poi.py", line 60, in <module> jsonf = urllib.urlopen(url) AttributeError: module 'urllib' has no attribute 'urlopen'

您遇到的错误是因为urllib模块中没有urlopen这个属性。Python 3中urllib模块被分为了urllib.request、urllib.parse、urllib.error等子模块。

要解决这个问题，您可以将代码中的urllib替换为urllib.request。请尝试以下修改：

import urllib.request

url = "your_url_here"
jsonf = urllib.request.urlopen(url)

这样应该可以解决您的问题。如果还有其他问题，请随时提问。