摘要

我试图在一个all spark笔记本中执行这个简单的python代码片段，这个笔记本应该在本地spark集群中执行，我在docker compose文件中设置了这个集群。然而，我得到了错误 ModuleNotFoundError: No module named 'pyspark' 这对我来说毫无意义，因为在这个dockerfile（我从dockerrepos文档中获取）中，我显式地用pip安装了pyspark。

重现错误的步骤

# Clone the repository and checkout a specific commit

kevinsuedmersen@LAPTOP-XXX:~/dev/hadoop-sandbox$ git clone https://github.com/kevinsuedmersen/hadoop-sandbox.git
kevinsuedmersen@LAPTOP-XXX:~/dev/hadoop-sandbox$ git checkout e0a061dd3a60842aa0e93893892c7e0844c2278a

# Install and start all services

kevinsuedmersen@LAPTOP-XXX:~/dev/hadoop-sandbox$ docker-compose up -d

# Entering the container running the notebooks

kevinsuedmersen@LAPTOP-XXX:~/dev/hadoop-sandbox$ docker exec -it jupyter-spark bash

# Activating the custom python environment installed in the above referenced Dockerfile

(base) jovyan@XXX:~$ conda activate python37

# Start a jupyter notebook server

(python37) jovyan@XXX:~$ jupyter notebook

# After some logging, the following output shows

To access the notebook, open this file in a browser:
file:///home/jovyan/.local/share/jupyter/runtime/nbserver-27913-open.html
Or copy and paste one of these URLs:
http://b8ef36545270:8889/?token=some_token
or http://127.0.0.1:8889/?token=some_token

然后，我点击网址 http://127.0.0.1:8889/?token=some_token 要在我的浏览器中打开jupytergui，请执行简单的python代码片段并获得上面解释的错误。

我试过的

为了检查pyspark是否真的安装了，我基本上只是尝试在jupyterspark容器的shell中执行简单的python代码片段，令人惊讶的是，它成功了。具体来说，我在一个新shell中执行了以下命令：

# Entering into the jupyter-spark container and activating the custom python environment

kevinsuedmersen@LAPTOP-XXX:~/dev/hadoop-sandbox$ docker exec -it jupyter-spark bash
(base) jovyan@XXX:~$ conda activate python37

# Opening a python shell

(python37) jovyan@XXX:~$ python

# Copy pasting the same commands from the notebook into the shell

>>> import pyspark
>>> from pyspark.sql import SparkSession
>>> spark = SparkSession.builder.master('spark://spark-master:7077').getOrCreate()
>>> sc = spark.sparkContext
>>> rdd = sc.parallelize(range(100 + 1))
>>> rdd.sum()
5050

此外，我注意到在笔记本中执行以下操作

! python --version

印刷品 Python 3.8.8 所以，我的问题是：如何让笔记本使用定制的python环境？