Links: PROGRAMMING - PYTHON
Rel: python standard library builtins
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Tags: #public

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eval()

why can it be dangerous?
evaluates an single expression (anything you can put as value of a variable assignment as str) and returns the value that the expression produces.
- can't assign variables ('x = 2') or run statements ('if x == 2: print("x is two")')

list_str = "[2,9,4,3,17,20]"
evald_str = eval(list_str)

>>> type(evald_str == list)
True

alineof.py

def hack_the_thing():
    x = input("code: ")
    evald_x = eval(x)
    return evald_x

if __name__ == '__main__':
    hack_the_thing()

see also: exec