astor

New features

• Support ast.Constant nodes being emitted by Python 3.8 (and initially created in Python 3.6). (Reported and fixed by Chris Rink in Issue 120 and PR 121.)

• Support Python 3.8's assignment expressions. (Reported and fixed by Kodi Arfer in Issue 126 and PR 134.)

• Support Python 3.8's f-string debugging syntax. (Reported and fixed by Batuhan Taskaya in Issue 138 and PR 139.)

• astor.to_source now has a source_generator_class parameter to customize source code generation. (Reported and fixed by matham in Issue 113 and PR 114.)

• The ~SourceGenerator class can now be imported from the astor package directly. Previously, the astor.code_gen submodule was needed to be imported.

• Support Python 3.8's positional only arguments. See 570 for more details. (Reported and fixed by Batuhan Taskaya in Issue 142 and PR 143.)

Bug fixes

• Fix string parsing when there is a newline inside an f-string. (Reported by Adam Cécile in Issue 119 and fixed by Felix Yan in PR 123.)

• Fixed code generation with escaped braces in f-strings. (Reported by Felix Yan in Issue 124 and fixed by Kodi Arfer in PR 125.)

• Fixed code generation with attributes of integer literals, and with u-prefixed string literals. (Fixed by Kodi Arfer in PR 133.)

• Fixed code generation with very large integers. (Reported by Adam Kucz in Issue 127 and fixed by Kodi Arfer in PR 130.)

• Fixed astor.tree_walk.TreeWalk when attempting to access attributes created by Python's type system (such as __dict__ and __weakref__) (Reported and fixed by esupoff in Issue 136 and PR 137.)

Fixes #116

New features

• Added initial support for Python 3.7.0.

  Note that if you have a subclass of astor.code_gen.SourceGenerator, you may need to rename the keyword argument async of the following methods to is_async:

  • visit_FunctionDef(..., is_async=False)

  • visit_For(..., is_async=False)

  • visit_With(..., is_async=False)

  (Reported and fixed by Berker Peksag in Issue 86.)

• Dropped support for Python 2.6 and Python 3.3.

Bug fixes

• Fixed a bug where newlines would be inserted to a wrong place during printing f-strings with trailing newlines. (Reported by Felix Yan and contributed by Radomír Bosák in Issue 89.)

• Improved code generation to support ast.Num nodes containing infinities or NaNs. (Reported and fixed by Kodi Arfer in Issue 85 and Issue 100.)

• Improved code generation to support empty sets. (Reported and fixed by Kodi Arfer in Issue 108.)

Fix 'make clean' command

Fix 'make release' command

New features

• New astor.rtrip command-line tool to test round-tripping of Python source to AST and back to source. (Contributed by Patrick Maupin.)

• New pretty printer outputs much better looking code:

  • Remove parentheses where not necessary

  • Use triple-quoted strings where it makes sense

  • Add placeholder for function to do nice line wrapping on output

  (Contributed by Patrick Maupin.)

• Additional Python 3.5 support:

  • Additional unpacking generalizations (448)

  • Async and await (492)

  (Contributed by Zack M. Davis.)

• Added Python 3.6 feature support:

  • f-strings (498)

  • async comprehensions (530)

  • variable annotations (526)

  (Contributed by Ryan Gonzalez.)

• Code cleanup, including renaming for 8 and deprecation of old names. (Contributed by Leonard Truong in Issue 36.)

Bug fixes

• Don't put trailing comma-spaces in dictionaries. astor will now create {'three': 3} instead of {'three': 3, }. (Contributed by Zack M. Davis.)

• Fixed several bugs in code generation:

  1. Keyword-only arguments should come before **

  2. from .. import <member> with no trailing module name did not work

  3. Support from .. import foo as bar syntax

  4. Support with foo: ..., with foo as bar: ... and with foo, bar as baz: ... syntax

  5. Support 1eNNNN syntax

  6. Support return (yield foo) syntax

  7. Support unary operations such as -(1) + ~(2) + +(3)

  8. Support if (yield): pass

  9. Support if (yield from foo): pass

  10. try...finally block needs to come after the try...else clause

  11. Wrap integers with parentheses where applicable (e.g. (0).real should generated)

  12. When the yield keyword is an expression rather than a statement, it can be a syntax error if it is not enclosed in parentheses

  13. Remove extraneous parentheses around yield from

  (Contributed by Patrick Maupin in Issue 27.)

Remove 3.5 for now. It's not added to PyPI yet.

added missing arguments vistor from Armin's original repo

Add AUTHORS to MANIFEST.in.

New features

• Added support for Python 3.3.

  • Added YieldFrom

  • Updated Try and With.

Bug fixes

• Fixed a packaging bug on Python 3 -- see pull requests #1 and #2 for more information.

Enhancements

• Modified TreeWalk to add _name suffix for functions that work on attribute names

Enhancements

• Initial Python 3 support

• Test of treewalk

• Initial release

• Based on Armin Ronacher's codegen

• Several bug fixes to that and new tree walker