drugbank_downloader

Don't worry about DrugBank licensing and distribution rules - just use drugbank_downloader to write code that knows how to download it and use it automatically.

Installation

$ pip install drugbank-downloader

Download A Specific Version

import os
from drugbank_downloader import download_drugbank

username = ...  # suggestion: load from environment with os.getenv('DRUGBANK_USERNAME')
password = ...

path = download_drugbank(version='5.1.7', username=username, password=password)

# This is where it gets downloaded: ~/.data/drugbank/5.1.7/full database.xml.zip
expected_path = os.path.join(os.path.expanduser('~'), '.data', 'drugbank', '5.1.7', 'full database.xml.zip')
assert expected_path == path.as_posix()

After it's been downloaded once, it's smart and doesn't need to download again. It gets stored using pystow automatically in the ~/.data/drugbank directory.

Download the Latest Version

First, you'll have to install bioversions with pip install bioversions, whose job it is to look up the latest version of many databases. Then, you can modify the previous code slightly:

import os
from drugbank_downloader import download_drugbank

username = ...  # suggestion: load from environment with os.getenv('DRUGBANK_USERNAME')
password = ...

path = download_drugbank(username=username, password=password)

# This is where it gets downloaded: ~/.data/drugbank/5.1.7/full database.xml.zip based on the latest
# version, as of December 14th, 2020.
expected_path = os.path.join(os.path.expanduser('~'), '.data', 'drugbank', '5.1.7', 'full database.xml.zip')
assert expected_path == path.as_posix()

Store in a Different Place

If you want to store the data elsewhere using pystow (e.g., in PyOBO I also keep a copy of this file), you can use the prefix argument.

import os
from drugbank_downloader import download_drugbank

username = ...  # suggestion: load from environment with os.getenv('DRUGBANK_USERNAME')
password = ...

path = download_drugbank(version='5.1.7', username=username, password=password, prefix=['pyobo', 'raw', 'drugbank'])

# This is where it gets downloaded: ~/.data/pyobo/raw/drugbank/5.1.7/full database.xml.zip
expected_path = os.path.join(os.path.expanduser('~'), '.data', 'pyobo', 'raw', 'drugbank', '5.1.7',
                             'full database.xml.zip')
assert expected_path == path.as_posix()

Download via CLI

After installing, run the following CLI command to ensure it and send the path to stdout

$ drugbank_downloader --username *** --password ***