Changelog

Main additions and breaking changes listed here.

0.7.0 (unreleased)

Breaking changes:

Additions:

Added comprehension support: list_comprehension, set_comprehension, dict_comprehension, and generator_expression factory functions, with support for conditions and multiple generators
Added Lambda AST node for lambda expressions
Added NamedExpr (walrus operator :=) with named() standalone function
Added augmented assignment (+=, -=, etc.) with AugAssignment statement and Block.aug_assign() convenience method
Better support for passing Name objects as target to create_for etc.
Added SVG-to-Turtle compiler example

Additions:

Added For loop support with Block.create_for()
Added Break and Continue statements with Block.create_break() / Block.create_continue()
Added Raise statement with Block.create_raise()
Added Block.create_try() convenience method
Added Slice AST node with auto() support
Added support for multiple except clauses, except ... as, and finally on Try
create_for, create_except, and create_with now accept plain strings where Name / target was required

Breaking changes:

Redesigned Try: removed catch_exceptions from __init__; except clauses are now added via Try.create_except()
Block.create_try() no longer takes arguments (add except clauses on the returned Try)
Block.create_with returns (with_statement, target) as output.
Removed has_assignment_for_name