ValueError: malformed node or string: <_ast.Call object at 0x000000001A5BA588>

[agnesbao]

Description

What steps will reproduce the problem?

1. After I run this code snippet, it pops the error window:
   try:
   kwls = record['PubmedArticle'][0]['MedlineCitation']['KeywordList'][0]
   for w in kwls:
   abs_str.append(w)
   except:
   abs_str.append('')

2. Then I cannot run any code unless I restart Spyder

What is the expected output? What do you see instead?

Please provide any additional information below

File "C:\Users\Xiaojun\Anaconda3\lib\site-packages\qtconsole\base_frontend_mixin.py", line 163, in _dispatch
handler(msg)
File "C:\Users\Xiaojun\Anaconda3\lib\site-packages\spyder\widgets\ipythonconsole\namespacebrowser.py", line 220, in _handle_execute_reply
self.handle_exec_method(msg)
File "C:\Users\Xiaojun\Anaconda3\lib\site-packages\spyder\widgets\ipythonconsole\shell.py", line 354, in handle_exec_method
view = ast.literal_eval(literal)
File "C:\Users\Xiaojun\Anaconda3\lib\ast.py", line 85, in literal_eval
return _convert(node_or_string)
File "C:\Users\Xiaojun\Anaconda3\lib\ast.py", line 66, in _convert
in zip(node.keys, node.values))
File "C:\Users\Xiaojun\Anaconda3\lib\ast.py", line 65, in
return dict((_convert(k), _convert(v)) for k, v
File "C:\Users\Xiaojun\Anaconda3\lib\ast.py", line 66, in _convert
in zip(node.keys, node.values))
File "C:\Users\Xiaojun\Anaconda3\lib\ast.py", line 65, in
return dict((_convert(k), _convert(v)) for k, v
File "C:\Users\Xiaojun\Anaconda3\lib\ast.py", line 84, in _convert
raise ValueError('malformed node or string: ' + repr(node))
ValueError: malformed node or string: <_ast.Call object at 0x000000001A5BA588>

[dalthviz]

Hi @agnesbao this seems like a duplicate of #5636

Please update Spyder with:

conda update spyder

[ccordoba12]

Thanks @dalthviz! Closing because this was solved a long time ago.

[Sherochen]

@ccordoba12 Hello, May I know how did you solve this problem? I am facing the same error now but cannot manage to solve it. Thanks.

[ccordoba12]

You need to update Spyder. It was a problem in our side.

[mkkuemmel]

@ccordoba12 Hi, unfortunately, I still have this problem, even though I updated Spyder to 3.3.2.
Is there anything else I can do?

[ccordoba12]

@MiriamKl, please open a new issue and give us a simple and reproducible code that generates this problem.

[Zhongyi-89]

@mkkuemmel @ccordoba12 @Sherochen You may want to try to use "eval()" instead of "literal_eval()".
Or check your Object type by "type(literal)", as <The string or node provided may only consist of the following Python literal structures: strings, bytes, numbers, tuples, lists, dicts, sets, booleans, and None.>