Skip to main content

Python convenience function for opening compressed URLs and files.

Project description

https://travis-ci.org/selassid/canopener.svg?branch=master

Python convenience function canopener(filename, mode='r') for opening files.

Local files behave identically to open():

>>> canopener('local_file.txt')

URLs can also be passed as the filename and opened for reading. urllib2.urlopen() is used under the covers, so it has equivalent support:

>>> canopener('http://remote/file.txt')

S3 URLs can also be read if the boto module is installed and the AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY environment variables are set. The file is downloaded to a temporary local file on open:

>>> os.environ['AWS_ACCESS_KEY_ID'] = 'key'
>>> os.environ['AWS_SECRET_ACCESS_KEY'] = 'secret'
>>> canopener('s3://bucket/file.txt')

Any paths with “.gz” or “.bz2” extensions are transparently decompressed:

>>> canopener('local_file.txt.gz')
>>> canopener('local_file.txt.bz2')
>>> canopener('http://remote/file.txt.gz')
>>> canopener('s3://bucket/file.txt.gz')

There’s also transparent compression when writing to local files:

>>> canopener('local_file.txt.gz', 'w')

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Filename, size & hash SHA256 hash help File type Python version Upload date
canopener-0.1.6.tar.gz (3.9 kB) Copy SHA256 hash SHA256 Source None Apr 13, 2015

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN DigiCert DigiCert EV certificate StatusPage StatusPage Status page