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 | 1 | initial version |
If the keys involved are strings and the values are built-in Python types, you can use literal_eval:
sage: import ast
sage: s = "{'alpha': 0.2}"
sage: type(s)
<type 'str'>
sage: m = ast.literal_eval(s)
sage: m
{'alpha': 0.20000000000000001}
sage: type(m)
<type 'dict'>
literal_eval is safe and doesn't allow for arbitrary code execution. eval and sage_eval both will, which is always a bit dangerous.
BTW, you should try to avoid calling variables str -- that clobbers the built-in str type.
| | 2 | No.2 Revision |
If the keys objects involved are strings and the values are built-in Python types, you can use literal_eval:
sage: import ast
sage: s = "{'alpha': 0.2}"
sage: type(s)
<type 'str'>
sage: m = ast.literal_eval(s)
sage: m
{'alpha': 0.20000000000000001}
sage: type(m)
<type 'dict'>
literal_eval is safe and doesn't allow for arbitrary code execution. eval and sage_eval both will, which is always a bit dangerous.
BTW, you should try to avoid calling variables str -- that clobbers the built-in str type.
