Tobias Müller wrote:
> I'm facing an issue with NodeTransformer, a tool used for Python AST
> manipulations.
>
> Last week I posted on stackoverflow.com, but there are no responses yet.
> Maybe someone reading the mailing list can have a look and leave me a
> response here or over there?
>
> http://stackoverflow.com/questions/18275662/python-nodetransformer-how-to-
remove-nodes
As Chris says, you are overriding too much of the generic behaviour. Here is
a working demo:
import ast
class MyTransformer(ast.NodeTransformer):
def visit_For(self, node):
"""
For nodes: replace with nothing
"""
print("removing a For node")
return None
source = """
l = [0, 1, 2, 3]
total = 0
for i in l:
total += i
print(total)
"""
transformer = MyTransformer()
module = ast.parse(source)
transformer.visit(module)
codeobj = compile(module, '<string>', 'exec')
exec(codeobj)
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