python的apache-storm混合拓扑 - ModuleNotFoundError：没有名为'storm'的模块(apache-storm mixed topology with python - ModuleNotFoundError: No module named 'storm')

 我正在尝试创建一个混合风暴拓扑结构，它使用基于Java的spout和基于python的螺栓。 
 
 对于基于python的螺栓，我写了一个Java包装器： 
 
class PythonBolt extends ShellBolt implements IRichBolt {

    public PythonBolt() {
        super("python", "C:\\somepath\\sample.py");
    }
    @Override
    public void declareOutputFields(OutputFieldsDeclarer outputFieldsDeclarer) {
    }

    @Override
    public Map<String, Object> getComponentConfiguration() {
        return null;
    }
}
 
 这就是我的sample.py的样子： 
 
 导入风暴 
 
class SplitSentenceBolt(storm.BasicBolt):
    def process(self, tup):
        print("Python rocks!")
        words = tup.values[0].split(" ")
        print(tup.values[0])

SplitSentenceBolt().run()
 
 然后我把它放在一起，并尝试通过以下代码片段运行： 
 
public class SampleBolt {

    public static void main(String[] args) throws Exception {
        TopologyBuilder builder = new TopologyBuilder();
        builder.setSpout("Hello", new RawDataLevelSpout(), 12);
        builder.setBolt("World", new PythonBolt(), 12);

        Config config = new Config();
        config.setDebug(true);


        LocalCluster cluster = new LocalCluster();
        cluster.submitTopology("Hello-World-BaiJian", config, builder.createTopology());
        Utils.sleep(100000);
        cluster.killTopology("Hello-World-BaiJian");
        cluster.shutdown();
    }
}
 
 这一切都正确启动，但是，我得到以下例外： 
 
import storm
ModuleNotFoundError: No module named 'storm'

    at org.apache.storm.utils.ShellProcess.launch(ShellProcess.java:94) ~[storm-client-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT]
    at org.apache.storm.task.ShellBolt.prepare(ShellBolt.java:154) ~[storm-client-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT]
    at org.apache.storm.executor.bolt.BoltExecutor.init(BoltExecutor.java:84) ~[storm-client-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT]
    at org.apache.storm.executor.bolt.BoltExecutor.call(BoltExecutor.java:93) ~[storm-client-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT]
    at org.apache.storm.executor.bolt.BoltExecutor.call(BoltExecutor.java:45) ~[storm-client-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT]
    at org.apache.storm.utils.Utils$2.run(Utils.java:329) ~[storm-client-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT]
 
 有关如何克服这一点的任何提示？ 我如何安装python storm软件包？ 是否可以通过Anaconda安装它（我找不到包）？ 

I'm trying to create a mixed storm topology, which is using Java based spout and python based bolt. 
 
For a python based bolt, I wrote a Java wrapper:
 
class PythonBolt extends ShellBolt implements IRichBolt {

    public PythonBolt() {
        super("python", "C:\\somepath\\sample.py");
    }
    @Override
    public void declareOutputFields(OutputFieldsDeclarer outputFieldsDeclarer) {
    }

    @Override
    public Map<String, Object> getComponentConfiguration() {
        return null;
    }
}
 
This is how my sample.py looks like:
 
import storm
 
class SplitSentenceBolt(storm.BasicBolt):
    def process(self, tup):
        print("Python rocks!")
        words = tup.values[0].split(" ")
        print(tup.values[0])

SplitSentenceBolt().run()
 
Then I put it all together and try to run via the following snippet:
 
public class SampleBolt {

    public static void main(String[] args) throws Exception {
        TopologyBuilder builder = new TopologyBuilder();
        builder.setSpout("Hello", new RawDataLevelSpout(), 12);
        builder.setBolt("World", new PythonBolt(), 12);

        Config config = new Config();
        config.setDebug(true);


        LocalCluster cluster = new LocalCluster();
        cluster.submitTopology("Hello-World-BaiJian", config, builder.createTopology());
        Utils.sleep(100000);
        cluster.killTopology("Hello-World-BaiJian");
        cluster.shutdown();
    }
}
 
It all boots-up correctly, however, I get the following exception:
 
import storm
ModuleNotFoundError: No module named 'storm'

    at org.apache.storm.utils.ShellProcess.launch(ShellProcess.java:94) ~[storm-client-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT]
    at org.apache.storm.task.ShellBolt.prepare(ShellBolt.java:154) ~[storm-client-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT]
    at org.apache.storm.executor.bolt.BoltExecutor.init(BoltExecutor.java:84) ~[storm-client-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT]
    at org.apache.storm.executor.bolt.BoltExecutor.call(BoltExecutor.java:93) ~[storm-client-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT]
    at org.apache.storm.executor.bolt.BoltExecutor.call(BoltExecutor.java:45) ~[storm-client-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT]
    at org.apache.storm.utils.Utils$2.run(Utils.java:329) ~[storm-client-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT]
 
Any hints on how to overcome this? How do I install that python storm package? Is it possible to install it through Anaconda (I failed to find the package)?

原文：https://stackoverflow.com/questions/49098352