Python 3.5 - AttributeError: 'Expr' object has no attribute 'value' about astor HOT 3 CLOSED

I received the same error when using visit_Call() then doing astor.to_source(). The issue can be fixed with 'return ast.Expr(value=None)' instead of 'return None'

from astor.

I tested using only ast, and I see that it works with def visit_Expr instead of def visit_Call.
So the problem is on my transformer, sorry 😕

But using only ast, this transformer was not working on python2 and not working on py3; with astor, it works on py2. I'm closing the issue, because it seems to be a problem with my transformer(this is my first usage of ast), but if there is anything that I can help, I'd love to help ;)

Thx

from astor.

Without thinking too hard about your code and what is going on, you could certainly replace the statement:

def visit_Expr(self, node):
    set_precedence(node, node.value)
    ...

With:

def visit_Expr(self, node):
    if hasattr(node, 'value'):
        set_precedence(node, node.value)
    ...

to see if that helps. But if you want to open a PR, you'd need to explain carefully what this is good for, with a good example (and preferably a test case).

Regards,
Pat

from astor.