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# python
e

early-rose-86563

05/03/2021, 8:18 PM
Hello, all! Is this an appropriate channel for a major `pulumi up`/Python/AWS problem I’m having after having upgraded
pulumi-aws
from 2.13.0 to 4.1.0 ? My stacks will no longer update, even if I destroy/delete them first, and I get a long list of generic exceptions with “IndexError: list index out of range” at the end. Problem is regardless of which resource(s) are in a stack,
r

red-match-15116

05/03/2021, 8:18 PM
Are you using python 3.6?
e

early-rose-86563

05/03/2021, 8:19 PM
I am using Python 3.6.8
Here’s what I get for every stack when I run pulumi up…
Copy code
Diagnostics:
  pulumi:pulumi:Stack (fluke-dev_fluke):
    error: Program failed with an unhandled exception:
    error: Traceback (most recent call last):
      File "/home/ec2-user/.pulumi/bin/pulumi-language-python-exec", line 85, in <module>
        loop.run_until_complete(coro)
      File "/usr/lib64/python3.6/asyncio/base_events.py", line 484, in run_until_complete
        return future.result()
      File "/usr/lib64/python3.6/asyncio/tasks.py", line 180, in _step
        result = coro.send(None)
      File "/usr/local/lib/python3.6/site-packages/pulumi/runtime/stack.py", line 110, in run_in_stack
        await run_pulumi_func(lambda: Stack(func))
      File "/usr/local/lib/python3.6/site-packages/pulumi/runtime/stack.py", line 45, in run_pulumi_func
        await wait_for_rpcs()
      File "/usr/local/lib/python3.6/site-packages/pulumi/runtime/stack.py", line 94, in wait_for_rpcs
        raise exception
      File "/usr/local/lib/python3.6/site-packages/pulumi/runtime/rpc_manager.py", line 67, in rpc_wrapper
        result = await rpc
      File "/usr/lib64/python3.6/asyncio/tasks.py", line 250, in _wakeup
        future.result()
      File "/usr/lib64/python3.6/asyncio/tasks.py", line 182, in _step
        result = coro.throw(exc)
      File "/usr/local/lib/python3.6/site-packages/pulumi/output.py", line 91, in is_value_known
        return await is_known and not contains_unknowns(await future)
      File "/usr/lib64/python3.6/asyncio/tasks.py", line 250, in _wakeup
        future.result()
      File "/usr/lib64/python3.6/asyncio/tasks.py", line 182, in _step
        result = coro.throw(exc)
      File "/usr/local/lib/python3.6/site-packages/pulumi/output.py", line 91, in is_value_known
        return await is_known and not contains_unknowns(await future)
      File "/usr/lib64/python3.6/asyncio/tasks.py", line 250, in _wakeup
        future.result()
      File "/usr/lib64/python3.6/asyncio/tasks.py", line 182, in _step
        result = coro.throw(exc)
      File "/usr/local/lib/python3.6/site-packages/pulumi/output.py", line 91, in is_value_known
        return await is_known and not contains_unknowns(await future)
      File "/usr/lib64/python3.6/asyncio/tasks.py", line 250, in _wakeup
        future.result()
      File "/usr/lib64/python3.6/asyncio/tasks.py", line 182, in _step
        result = coro.throw(exc)
      File "/usr/local/lib/python3.6/site-packages/pulumi/output.py", line 91, in is_value_known
        return await is_known and not contains_unknowns(await future)
      File "/usr/lib64/python3.6/asyncio/tasks.py", line 250, in _wakeup
        future.result()
      File "/usr/lib64/python3.6/asyncio/tasks.py", line 182, in _step
        result = coro.throw(exc)
      File "/usr/local/lib/python3.6/site-packages/pulumi/output.py", line 91, in is_value_known
        return await is_known and not contains_unknowns(await future)
      File "/usr/lib64/python3.6/asyncio/tasks.py", line 250, in _wakeup
        future.result()
      File "/usr/lib64/python3.6/asyncio/tasks.py", line 182, in _step
        result = coro.throw(exc)
      File "/usr/local/lib/python3.6/site-packages/pulumi/output.py", line 91, in is_value_known
        return await is_known and not contains_unknowns(await future)
      File "/usr/lib64/python3.6/asyncio/tasks.py", line 250, in _wakeup
        future.result()
      File "/usr/lib64/python3.6/asyncio/tasks.py", line 180, in _step
        result = coro.send(None)
      File "/usr/local/lib/python3.6/site-packages/pulumi/runtime/resource.py", line 438, in do_register
        resolver = await prepare_resource(res, ty, custom, remote, props, opts, typ)
      File "/usr/local/lib/python3.6/site-packages/pulumi/runtime/resource.py", line 100, in prepare_resource
        serialized_props = await rpc.serialize_properties(props, property_dependencies_resources, translate, typ)
      File "/usr/local/lib/python3.6/site-packages/pulumi/runtime/rpc.py", line 112, in serialize_properties
        types = _types.input_type_types(typ)
      File "/usr/local/lib/python3.6/site-packages/pulumi/_types.py", line 461, in input_type_types
        return _types_from_py_properties(input_type_cls)
      File "/usr/local/lib/python3.6/site-packages/pulumi/_types.py", line 714, in _types_from_py_properties
        cls_hints = get_type_hints(prop.fget, globalns=globalns, localns=localns)
      File "/usr/lib64/python3.6/typing.py", line 1543, in get_type_hints
        value = _eval_type(value, globalns, localns)
      File "/usr/lib64/python3.6/typing.py", line 350, in _eval_type
        return t._eval_type(globalns, localns)
      File "/usr/lib64/python3.6/typing.py", line 767, in _eval_type
        return self.__class__(ev_args, ev_origin, _root=True)
      File "/usr/lib64/python3.6/typing.py", line 752, in __new__
        subs_tree = self._subs_tree()
      File "/usr/lib64/python3.6/typing.py", line 808, in _subs_tree
        tree_args = _subs_tree(self, tvars, args)
      File "/usr/lib64/python3.6/typing.py", line 608, in _subs_tree
        new_tree_args.append(_replace_arg(arg, ocls.__parameters__, tree_args))
      File "/usr/lib64/python3.6/typing.py", line 562, in _replace_arg
        return arg._subs_tree(tvars, args)
      File "/usr/lib64/python3.6/typing.py", line 1086, in _subs_tree
        tree_args = _subs_tree(self, tvars, args)
      File "/usr/lib64/python3.6/typing.py", line 603, in _subs_tree
        tree_args.append(_replace_arg(arg, tvars, args))
      File "/usr/lib64/python3.6/typing.py", line 566, in _replace_arg
        return args[i]
    IndexError: list index out of range
    error: an unhandled error occurred: Program exited with non-zero exit code: 1
m

microscopic-pilot-97530

05/03/2021, 8:22 PM
This is https://github.com/pulumi/pulumi/issues/6886 which was fixed last week but hasn’t been released yet.
r

red-match-15116

05/03/2021, 8:25 PM
justin said it before I could, but yes it’s been fixed and will be included in the next release. sorry for the trouble @early-rose-86563
e

early-rose-86563

05/03/2021, 8:25 PM
Thanks! I’ll review the ticket. Maybe I can try changing my Python version or package versions while I wait for the release.
r

red-match-15116

05/03/2021, 8:25 PM
Yeah if you bump python version to 3.7+ you’ll be fine
e

early-rose-86563

05/03/2021, 8:25 PM
Thanks to both of you. 🙂
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