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ZTOKLIC02Z93YHLVDL:~ tatsuro.homma$ cd Arduino/
ZTOKLIC02Z93YHLVDL:Arduino tatsuro.homma$ ls
build
ZTOKLIC02Z93YHLVDL:Arduino tatsuro.homma$ cd build
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ZTOKLIC02Z93YHLVDL:build tatsuro.homma$ pyenv local 3.7.0

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ZTOKLIC02Z93YHLVDL:build tatsuro.homma$ pyenv versions
  system
* 3.7.0 (set by /Users/tatsuro.homma/Arduino/build/.python-version)
  3.7.0/envs/scraping
  scraping


ZTOKLIC02Z93YHLVDL:build tatsuro.homma$ python --version
Python 3.7.0
ZTOKLIC02Z93YHLVDL:build tatsuro.homma$ 
ZTOKLIC02Z93YHLVDL:build tatsuro.homma$ pip3 install intelhex pylint pyserial
Looking in indexes: https://pypip.$(my_company).net/simple
Collecting intelhex
  Could not find a version that satisfies the requirement intelhex (from versions: )
No matching distribution found for intelhex
You are using pip version 10.0.1, however version 19.3.1 is available.
You should consider grading via the 'pip install --grade pip' command.
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ZTOKLIC02Z93YHLVDL:build tatsuro.homma$ pip install --upgrade pip
Looking in indexes: https://pypip.$(my_company).net/simple
Collecting pip
  Using cached https://pypip.$(my_company).net/simple/pip/pip-19.3.1-py2.py3-none-any.whl
Installing collected packages: pip
  Found existing installation: pip 10.0.1
    Uninstalling pip-10.0.1:
      Successfully uninstalled pip-10.0.1
Successfully installed pip-19.3.1
ZTOKLIC02Z93YHLVDL:build tatsuro.homma$