pip

上傳 package 到 test pypi 上

• python3 -m twine upload --repository testpypi dist/*
• twine document

由 test pypi 安裝 package

python3 -m pip install --index-url https://test.pypi.org/simple/ --no-deps example-pkg

Reference

• python-packaging * 這篇要好好來讀一讀
• Building and Uploading to PyPi * 值得一看
• Packaging Python Projects
• Making a Python Package

Reference

• Build Your First pip Package
• Packaging Python Projects

遇到的問題

• 今天在 EC2 上，使用 virtualenv 來安裝 pandas 時，遇到 pip 有安裝成功，但是進去 ipython 時，找不到 pandas module 的情形
• 找了一段時間後，發現 package 被安裝在 lib64 的path，而 pip 是找 lib folder，所以找不到 pandas module

  1 2 3 4

  /home/ec2-user/.virtualenvs/data/lib64/python3.6/dist-packages/pandas /home/ec2-user/.virtualenvs/data/lib64/python3.6/dist-packages/pandas/tests/io/json/__pycache__/test_pandas.cpython-36.pyc /home/ec2-user/.virtualenvs/data/lib64/python3.6/dist-packages/pandas/tests/io/json/test_pandas.py /home/ec2-user/.virtualenvs/data/lib64/python3.6/dist-packages/pandas-1.0.3.dist-info

• 看起來應該是某版本的 amazon linux 的問題

解法

• 用指定路徑的方式，來執行 pip

  1	$ pip install --upgrade --target /home/ec2-user/.virtualenvs/data/local/lib/python3.6/dist-packages pandas

• 看 python 的 path

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  >>> import sys >>> sys.path ['', '/home/ec2-user/.virtualenvs/data/local/lib64/python3.6/site-packages', '/home/ec2-user/.virtualenvs/data/local/lib/python3.6/site-packages', '/home/ec2-user/.virtualenvs/data/lib64/python3.6', '/home/ec2-user/.virtualenvs/data/lib/python3.6', '/home/ec2-user/.virtualenvs/data/lib64/python3.6/site-packages', '/home/ec2-user/.virtualenvs/data/lib/python3.6/site-packages', '/home/ec2-user/.virtualenvs/data/lib64/python3.6/lib-dynload', '/home/ec2-user/.virtualenvs/data/local/lib/python3.6/dist-packages', '/usr/lib64/python3.6', '/usr/lib/python3.6']

Refrerence

• Packages installed by pip in lib64 are not recognized by pip