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zakupki

Zakupki (закупки) is my personal project. The purpose of the project is research of data that the Russian government provides on government procurement. Right now it is a single Python script (in multiple files) that loads the data (zipped XML at ftp://free:[email protected]/) into MongoDB. MongoDB is used because the data is too irregular for relational databases.

Usage

update.py <all|inc>
	[-H --mongodb-host, -P --mongodb-port]
	[-mu --mongodb-user, -mp --mongodb-password]
	[-c --contracts,  -p --products, -o --organizations]

First argument is the type of update.

  • all does full update - drops collections and loads all available data.
  • inc does incremental update. It searches maximum publish date in the corresponding collection (by region, if the data is divided this way) and loads the data that is published since that max date. If there is no data in the corresponding document group, inc loads all available date.

If you have no data in your MongoDB, there's no difference between all and inc.

You can also provide host address and port if your MongoDB is not running on localhost. And username-password if you MongoDB uses authentication.

The other arguments are collections to load. If the user provides no additional arguments, all available document types are loaded.

Examples:

# load all data on products (OKDP classification) to the local mongodb
# (no authentication)
python update.py all -p

# make an incremental update of all available data on server `x.x.x.x`, port `15146`,
# username `putin` and password `medvedev`
python update.py inc -H x.x.x.x -P 15146 -mu putin -mp medvedev

Dependencies

The script runs on Python 2.7 and has two dependencies: lxml and pymongo.

To install lxml:

apt-get install python-dev libxml2-dev libxslt-dev
pip install lxml

To install pymongo:

pip install pymongo

And, of course, you have to install MongoDB. Current version of the script requires mongodb-10gen version 2.4.6, you can find installation instructions (for Linux Ubuntu) here: http://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/

If you are short on time, just run this to install the latest version:

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10
echo 'deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen' | sudo tee /etc/apt/sources.list.d/mongodb.list
sudo apt-get update
sudo apt-get install mongodb-10gen

Info

You can find information about document contents and FTP server folder structure as well as basic document search at http://zakupki.gov.ru/ the official website.

Additional info on the the script structure can be found in my (rather poor) comments.

This is the file I strongly relied on in parsing XML (Russian, from the same website): https://www.dropbox.com/s/sq54tv9zl38ojah/%D0%90%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC%2B%D0%A2%D0%A4%D0%A4_0.0.21.0.pdf