Use proxypypi to set up a transparent caching proxy to PyPI (https://pypy.python.org/) to:
make your installs resilient against Internet/PyPI issues,
speed up your installs significantly (after the first one),
prevent problems installing packages that are removed from distribution by the author,
allow installation of packages from within a firewalled environment where the host performing the installation does not have Internet access, and
allow hosting and installation of private packages.
When the proxy is asked about a package it doesn’t know it automatically goes off and fetches the file download list for the package, rewriting all references (PyPI and external) so they appear to be local. On request of one of those now-local package file references it performs a background fetch of the file contents and serves up the new file data to the pip request (thus keeping that request alive despite its very short timeout duration).
Why Another One?
There’s a lot of PyPI-alike implementations and “proxy” servers out there. This proxy differs from almost all others (save devpi-server) in that it automatically relocates package download files from the Internet to your local server. It differs from devpi-server in that it has no external database requirement (just a filesystem is needed) making deployment much simpler (at least for me).
Usage
Setup of proxypypi requires:
“pip install proxypypi”
cd to some directory you would like files to be cached in
proxypypi run
There are some command-line arguments (see “proxypypi -h”) that allow some run-time behaviour control. Notably “-d” which can configure the directory to cache in.
Additionally the proxy may run in the background, in which case you need to supply three additional command-line arguments: “-P” (PID file), “-l” (log file) and “-o” (console output file) and use one of the daemon control commands instead of “run”. See “proxypypi -h” for the commands.
Once running you may perform pip installs using the proxy by including the proxy in the pip command line using the “-i” argument:
pip install -i http://proxy_host:proxy_port/simple/ package_to_install
Any packages not cached will be fetched into the cache and the install will continue as normal.
Upgrading Cached Packages
This isn’t done yet :-)
Version History
1.0 first public releae
1.0.1 clear up handling of paths to daemon files
1 maintainer
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