pants-pyspark: A Demo for PySpark based monorepo slides

Three reasons to adopt pants

• User Friendly
• Fast
• Reproducible

Subprojects

• cat: smart dependency inference (rikai==0.1.13 is not required)
• dog: demo usage of customize_tests
• lion: demo usage of customize_sources
• tiger: demo usage of runtime_deps

Howto

How to install the pants build tool

Just use ./pants bootstrap script and make sure that python3 is available. If python3 is not available,
just use homebrew to install python3 or use conda to create a python3 environment. Please use Python >=3.8.

You could use the following command line to test installation of pants:

./pants version

How to add a new subproject

See #8

Cheatsheat

# run single unit tests
./pants test tests/tubi/cat/tail_test.py --  -s

# run all unit tests
./pants test :: --  -s

# test only the changed part
./pants --changed-since=main  test

# list all packages
bin/package

# package for tubi-cat
bin/package tubi-cat

IDE Integration

./pants export ::

For PyCharm, just select the Python interpreter. For example,

dist/export/python/virtualenvs/cat/3.8.10/bin/python