I have a string of a list that I am trying to convert to list, however ast.literal_eval
returns an error:
y = "[
{
'ake_ii': 88888,
'azefmlkh_amrlgba_dd': datetime.datetime(2022, 1, 31, 16, 52),
'sklmfs_qujdf_': datetime.datetime(2022, 1, 31, 23, 4)
}
]"
ast.literal_eval(y)
error returned
ValueError: malformed node or string: <ast.Call object at 0x7fbaec22da60>
I want a list returned without it being a string.
Here's an answer adapted from my other related answer :
import ast
import datetime
data = """
[
{
'ake_ii': 88888,
'azefmlkh_amrlgba_dd': datetime.datetime(2022, 1, 31, 16, 52),
'sklmfs_qujdf_': datetime.datetime(2022, 1, 31, 23, 4)
}
]
""".strip()
def literal_eval_with_datetime(source):
# Adapted from `ast.literal_eval`
def _convert(node):
if isinstance(node, list):
return [_convert(arg) for arg in node]
if isinstance(node, ast.Constant):
return node.value
if isinstance(node, ast.Tuple):
return tuple(map(_convert, node.elts))
if isinstance(node, ast.List):
return list(map(_convert, node.elts))
if isinstance(node, ast.Set):
return set(map(_convert, node.elts))
if isinstance(node, ast.Call) and isinstance(node.func, ast.Name) and node.func.id == 'set' and node.args == node.keywords == []:
return set()
if isinstance(node, ast.Dict):
return dict(zip(map(_convert, node.keys), map(_convert, node.values)))
if isinstance(node, ast.Expression):
return _convert(node.body)
if isinstance(node, ast.Call) and ast.get_source_segment(source, node.func) == 'datetime.datetime':
return datetime.datetime(*_convert(node.args))
return {
f'${node.__class__.__name__}': ast.get_source_segment(source, node),
}
return _convert(ast.parse(source, mode='eval'))
print(literal_eval_with_datetime(data))
The output is (a real list, of course):
[
{
"ake_ii": 88888,
"azefmlkh_amrlgba_dd": datetime.datetime(2022, 1, 31, 16, 52),
"sklmfs_qujdf_": datetime.datetime(2022, 1, 31, 23, 4),
}
]
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