Welcome to the AST Unparser documentation!¶
An AST unparser for Python.
This is a factored out version of
unparse found in the Python
source distribution; under Demo/parser in Python 2 and under Tools/parser
in Python 3.
import inspect import ast import astunparse # get back the source code astunparse.unparse(ast.parse(inspect.getsource(ast))) # get a pretty-printed dump of the AST astunparse.dump(ast.parse(inspect.getsource(ast)))
This library is single-source compatible with Python 2.6 through Python 3.5. It is authored by the Python core developers; I have simply merged the Python 2.7 and the Python 3.5 source and test suites, and added a wrapper. This factoring out is to provide a library implementation that supports both versions.
Added to this is a pretty-printing
dump utility function.
The test suite both runs specific tests and also roundtrips much of the standard library.
Extensions and Alternatives¶
Similar projects include:
None of these roundtrip much of the standard library and fail several of the basic
tests in the
test_unparse test suite.
This library uses mature and core maintained code instead of trying to patch
existing libraries. The
unparse and the
are under the PSF license.
- typed-astunparse: extends astunparse to support type annotations.
- Documentation: http://astunparse.rtfd.org.
- unparses Python AST.
- pretty-prints AST.