Convert a string tuple to a tuple [duplicate]

Question

I have a user entered string which is already in tuple format and would like to convert/cast it to a actual tuple in python. How can I do this? E.g:

strTup = '(5, 6)'

Would like to convert the above to the tuple (5, 6). I tried tuple(strTup) which did not work as it made each character into its own tuple.

Thanks @JoranBeasley, I hadn't even heard of the ast module; pretty neat! — oscilatorium
– oscilatorium, Commented Jul 29, 2014 at 19:11
See stackoverflow.com/questions/15197673/… and stackoverflow.com/questions/1087255/use-of-eval-in-python/… — CT Zhu
– CT Zhu, Commented Jul 29, 2014 at 19:30

HK boy · Accepted Answer · 2024-02-18 13:00:57Z

23

You can pass it to eval() (note: this is unsafe):

Just do:

strTup = '(5,6)' eval(strTup)

edited Feb 18, 2024 at 13:00

HK boy

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answered Jul 29, 2014 at 20:37

Luna Feng

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2 Comments

Ricardo Decal Over a year ago

This is very bad advice!!! A user entered string can arbitrary complex (and potentially malicious) code, and you will just blindly evaluate it on your server! Instead, use ast.literal_eval.

Muneeb Ahmad Khurram Over a year ago

Do note that if you are sure about the data, and the user has no realistic way of generating that data, you can still use eval, using ast.literal_eval is the way to go.

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