redbaron 0.3

Abstraction on top of baron, a FST for python to make writing refactoring code a realistic task

Introduction

RedBaron is a python library and tool powerful enough to be used into IPython solely that intent to make the process of writting code that modify source code as easy and as simple as possible. That include writing custom refactoring, generic refactoring, tools, IDE or directly modifying you source code into IPython with an higher and more powerful abstraction than the advanced texts modification tools that you find in advanced text editors and IDE.

RedBaron guaranteed you that it will only modify your code where you ask him to. To achieve this, it is based on Baron a lossless AST for Python that guarantees the operation ast_to_code(code_to_ast(source_code)) == source_code. (Baron’s AST is called a FST, a Full Syntax Tree).

RedBaron API and feel is heavily inspired by BeautifulSoup. It tries to be simple and intuitive and that once you’ve get the basics principles, you are good without reading the doc for 80% of your operations.

For now, RedBaron can be considered in alpha, the core is quite stable but it is not battle tested yet and is still a bit rough. Feedback is very welcome.

Installation

pip install redbaron

Links

RedBaron is fully documented, be sure to check the turorial and documentation.

• Tutorial

• Documentation

• Baron

• IRC chat: irc.freenode.net#baron

Changelog

0.3 (2014-11-12)

• proxy lists, major improvement in the management of list of things

• .append_value is no more since it is useless now due to proxy lists

• .index has been renamed to .index_on_parent to be more coherent

0.2 (2014-09-23)

• for EVERY NODES in RedBaron, the automagic behavior when passing a string to modify an attribute has been done, this is HUGE improvement https://redbaron.readthedocs.org/en/latest/modifying.html#full-documentations

• it’s now possible to use regex, globs, list/tuple and lambda (callable) in .find and .find_all, see https://redbaron.readthedocs.org/en/latest/querying.html#advanced-querying

• new method on node: .replace() to replace in place a node https://redbaron.readthedocs.org/en/latest/other.html#replace

• .map .filter and .apply are now documented https://redbaron.readthedocs.org/en/latest/other.html#map-filter-apply

• .edit() new helper method to launch a text editor on the selected node and replace the node with the modified code https://redbaron.readthedocs.org/en/latest/other.html#edit

• .root node attribute (property) that return the root node of the tree in which the node is stored https://redbaron.readthedocs.org/en/latest/other.html#root

• .index node attribute (property) that returns the index at which the node is store if it’s store in a nodelist, None otherwise https://redbaron.readthedocs.org/en/latest/other.html#index

• setitem (a[x] = b) on nodelist now works as expected (accepting string, fst node and redbaron node)

• new method to handle indentation: .increase_indentation and .decrease_indentation https://redbaron.readthedocs.org/en/latest/other.html#increase-indentation-and-decrease-indentation

• various small bugfix

• we have one new contributor o/ https://github.com/ze42

• to_node has been move to a class method of Node: Node.from_fst

• pretty print of nodes when using redbaron in a script

0.1 (2014-06-13)

• First release