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I therefore measured both variants: a cold cache where the package had to be downloaded, and a warm cache where the package was already available locally. #Pip3 install requirements.txt installInstalling the already downloaded package.īy default, Python package managers will cache downloaded packages on disk, so if you install them a second time in a different virtualenv the package won’t need to be re-downloaded.Installing Python packages involves two steps: The default Python package manager is pip, but you can also use Pipenv and Poetry, both of which add additional functionality like virtualenv management. Wheels for musl-based distributions like Alpine are starting to become available, but they’re still not as common.Ĭomparing installation speed between pip, Pipenv, and Poetry Standard Linux wheels require glibc, but Alpine uses the musl C library. Don’t use Alpine Linux stick to Linux distributions that use glibc, e.g Debian/Ubuntu/RedHat/etc.Make sure you’re using the latest version of pip before installing dependencies.īinary wheels sometimes require newer versions of pip than the one packaged by default by your current Python.To ensure you’re installing wheels as much as possible: If you need to compile significant amounts of C code, installing from source will be much slower instead of relying on precompiled binaries, you’ll need to compile it all yourself. If at all possible, you want to install wheels, because installing from source will be slower. #Pip3 install requirements.txt codewhl files) that can just be unpacked straight on to the filesystem, with no need to run code or compile native extensions. In this case, installing will often require running Python code (a little slow), and sometimes compiling large amounts of C/C++/Rust code (potentially extremely slow). When you install a Python package, there are two ways you can install it, typically:
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