bag 3.1.0

A library for several purposes, including javascript i18n and stuff for the Pyramid web framework.

bag contains code for many purposes, which I find myself reusing in multiple programs – so this code must be version-controlled. I use SQLAlchemy and Pyramid a lot.

Documentation is at http://docs.nando.audio/bag/latest/

The code is at https://github.com/nandoflorestan/bag where you can do your bug reports and pull requests.

• bag 0.8.0 is the last version that supported Python 2.6.

• bag 0.9.0 is the last version that supported Python 2.7.

• bag 1.3.0 is the last version that supported Python 3.4.

• bag 2.0 requires Python 3.5’s “typing” module for gradual typing.

• bag 2.1.0 is the last version that supported Python 3.5.

This version of bag was published with releaser.

Most important library contents

• bag.spreadsheet – Import CSV and Excel spreadsheets based on headers on the first row. There is also a buffered CSV writer for outputting CSV in a web app.

• bag.email_validator – The ultimate functions for email validation and domain validation, as well as an email address harvester.

• bag.pathlib_complement – A Path subclass that does what pathlib doesn’t do.

• bag.subcommand – Use argh to dispatch to subcommands with their command-line arguments.

• bag.web.burla – Powerful URL generation independent of web frameworks, working in Python and in the client (Javascript) too. Also provided is Pyramid integration for it.

• bag.web.flash_msg – Advanced flash messages for any web framework. Also provided is Pyramid integration.

• bag.web.transecma – Complete solution for javascript internationalization. Compatible with jquery templates. Includes transecma.js.

If you use the Pyramid web framework

• bag.web.pyramid.angular_csrf – Make Pyramid play ball with AngularJS to achieve CSRF protection.

• bag.web.pyramid.locale – Easily enable and disable locales, let users switch languages, and use the browser’s languages by default.

• bag.web.pyramid.nav – Simple web menu system (navigation).

• bag.web.pyramid.plugins_manager – Make your Pyramid app extensible through plugins.

• bag.web.pyramid.resources

• bag.web.exceptions – The Problem exception is good for throwing from a service layer, then caught in the view layer to be shown to the user. – Functions and base resources for context objects (Pyramid traversal).

• bag.web.pyramid.routes – Make Pyramid routes and the route_path() function available to JS in the client.

• bag.web.pyramid.genshi – Use the Genshi templating language with the Pyramid web framework. Though perhaps one might prefer Kajiki.

If you use SQLAlchemy

• bag.sqlalchemy.context – Convenient SQLAlchemy initialization, at last.

• bag.sqlalchemy.mediovaigel – Complete solution for database fixtures using SQLAlchemy.

• bag.sqlalchemy.testing – Fake objects for unit testing code that uses SQLAlchemy. Tests will run much faster because no database is accessed.

• bag.sqlalchemy.tricks – Various SQLAlchemy gimmicks, including a great base model class.

Commands

• delete_old_branches – Deletes git branches that have already been merged onto the current branch. Optionally, filter the branches by age (in days).

• reorder_po – Reorders .po files (usually after transifex messes up the order of the translations in them) so the diff is always readable.

Less important library contents

• bag.check_rst – Verifies reStructuredText content for correctness.

• bag.console – Functions for user interaction at the console.

• bag.corrupt_image – Read image files and do something if they are corrupt.

• bag.file_existence_manager – Tools for finding duplicate files using hashes.

• bag.log – Convenient logging initialization.

• bag.html – Encode and decode HTML and XML entities.

• bag.memoize – Memoize decorator with a LRU (least recently used) cache, which can take a keymaker function as an argument.

• bag.more_codecs – Got text in some weird encoding that Python doesn’t know? OK, use iconv to decode it.

• bag.show_progress – Don’t leave your user wondering if your program is hanging; print the progress every few seconds.

• bag.streams – Functions that use streams (open files).

• bag.text – Functions for working with unicode strings.

• bag.text.words – Contains lists of nouns and adjectives and can generate a random combination words – good for generating funny test data.

• bag.time – Functions to make it easier to work with datetimes. Includes a JSON encoder that supports time, datetime and Decimal.

Compiling the documentation

Install make, activate your virtualenv, and then:

pip install sphinx sphinx-autodoc-typehints
./build_sphinx_documentation.sh