我正在尝试将名为“requests”的 python 包与使用 pyspark 的程序一起使用。我已经下载了所需的包，并且能够通过包含“导入请求”来将其用于普通的 python 程序，但它不适用于 pyspark 程序并显示“ImportError:没有名为请求的模块”。

代码

def get_text(s): 
    import requests 
    url = s 
    data = requests.get(url).text 
    return data 

调用函数

newrdd=newrdd.map(get_text) 

输出错误行

16/12/12 15:42:33 WARN scheduler.TaskSetManager: Lost task 0.0 in stage 1.0 (TID 48, node090.cm.cluster): org.apache.spark.api.python.PythonException: Traceback (most recent call last): 
  File "/local/hadoop-2/tmp/hadoop-yarn/nm-local-dir/usercache/wdps1615/appcache/application_1480500761259_0178/container_1480500761259_0178_01_000003/pyspark.zip/pyspark/worker.py", line 172, in     main 
    process() 
  File "/local/hadoop-2/tmp/hadoop-yarn/nm-local-dir/usercache/wdps1615/appcache/application_1480500761259_0178/container_1480500761259_0178_01_000003/pyspark.zip/pyspark/worker.py", line 167, in process 
    serializer.dump_stream(func(split_index, iterator), outfile) 
  File "/local/hadoop-2/tmp/hadoop-yarn/nm-local-dir/usercache/wdps1615/appcache/application_1480500761259_0178/container_1480500761259_0178_01_000003/pyspark.zip/pyspark/serializers.py", line 133, in dump_stream 
    for obj in iterator: 
  File "/var/scratch/wdps1615/spark-2.0.2-bin-without-hadoop/python/lib/pyspark.zip/pyspark/rdd.py", line 1507, in func 
  File "/var/scratch/wdps1615/Entitytext.py", line 45, in get_text 
    import requests 
ImportError: No module named requests 

Link to error screenshot

请您参考如下方法:

我遇到了同样的问题，这对我有用:

import sys 
sys.path.append('/usr/local/lib/python3.5/dist-packages') 
import requests 

您也可以使用 python2.7 而不是 python3.5，但您必须确保 pip 包已安装并在该文件夹中可用。