pip’s requirements.txt best practice

I believe using pip-compile from pip-tools is a good practice when constructing your requirements.txt. This will make sure that builds are predictable and deterministic. The pip-compile command lets you compile a requirements.txt file from your dependencies, specified in either setup.py or requirements.in Here’s my recommended steps in constructing your requirements.txt (if using requirements.in): Create a … Read more

pip finds package with search but won’t install it

pip uses http://pypi.python.org/simple/<package name> to look for download links, and this package points to a kind of “non-obvious” target. pip looks for tarballs/zips in the source page, but can’t find a suitable url. Use -vvv to see how pip looks for this package: pip install linkchecker -vvv You may realize http://pypi.python.org/simple/linkchecker/ points to http://sourceforge.net/projects/linkchecker/files/, and … Read more

Wheel files : What is the meaning of “none-any” in protobuf-3.4.0-py2.py3-none-any.whl

Let’s split package names by components: numpy — package name 1.13.3 — package version cp27 — the package was compiled to be used with this version of Python cp27mu — compilation flags linux — operating system armv7l — processor architecture This means that package numpy contains binary extensions written in C and compiled for specific … Read more

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