How to convert a string, with functions inside, into a executable code in Python?

Question

I have a .txt file that has the following text:

"np.sqrt(2)**2"

I can't get the answer to this mathematical equation because is a string, does anyone know how to convert that text to code (In python)? So when executing the script I will have the following output:

[In] np.sqrt(2)**2
[Out] 2

https://stackoverflow.com/questions/701802/how-do-i-execute-a-string-containing-python-code-in-python — GloriaVictis, Dec 04 '20 at 13:45
you could use `eval` here. Usually, that's not a great solution, and is a security issue if the strings come from untrusted input — juanpa.arrivillaga, Dec 04 '20 at 14:04

score 0 · Accepted Answer · answered Dec 04 '20 at 13:45

0

You can use the eval() method. The return value is the result of the evaluated expression.

>>> x = 1
>>> eval('x + 1')
2
>>> eval('x')
1

answered Dec 04 '20 at 13:45

dot.Py

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Please read the proposed duplicate for the dangers of using `eval` – Daniel F Dec 04 '20 at 13:50

How to convert a string, with functions inside, into a executable code in Python?

1 Answers1