IPython extension allowing visualizing AST of cell using magic
Project description
This allows you to visualize the AST of a cell in IPython.
Installation
pip3 install ast-magic
To manually load, run the following in your IPython prompt:
%load_ext ast_magic
To automatically load, add the following to your IPython configuration file:
c = get_config()
c.InteractiveShellApp.extensions.append('ast_magic')
Usage
Verifying Python follows PEMDAS:
In [1]: %ast (1 + 1) ** 2 * 5 - 4
Module(
body=[
Expr(
value=BinOp(
left=BinOp(
left=BinOp(
left=BinOp(
left=Constant(value=1),
op=Add(),
right=Constant(value=1)),
op=Pow(),
right=Constant(value=2)),
op=Mult(),
right=Constant(value=5)),
op=Sub(),
right=Constant(value=4)))],
type_ignores=[])
You can use it in a cell too:
In [2]: %%ast
...:
...: def fibonacci(n: int) -> int:
...: return fibonacci(n - 2) + fibonnaci(n - 1)
...:
Module(
body=[
FunctionDef(
name='fibonacci',
args=arguments(
posonlyargs=[],
args=[
arg(
arg='n',
annotation=Name(id='int', ctx=Load()))],
kwonlyargs=[],
kw_defaults=[],
defaults=[]),
body=[
Return(
value=BinOp(
left=Call(
func=Name(id='fibonacci', ctx=Load()),
args=[
BinOp(
left=Name(id='n', ctx=Load()),
op=Sub(),
right=Constant(value=2))],
keywords=[]),
op=Add(),
right=Call(
func=Name(id='fibonnaci', ctx=Load()),
args=[
BinOp(
left=Name(id='n', ctx=Load()),
op=Sub(),
right=Constant(value=1))],
keywords=[])))],
decorator_list=[],
returns=Name(id='int', ctx=Load()))],
type_ignores=[])
Project details
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