What does Python's eval() do? - Stack Overflow
Eval function try to execute and interpret the string (argument) passed to it as python code. x=1 print (eval ('x+1')) Output of the above code will be 2.
dynamic - Use of eval in Python - Stack Overflow
Oct 30, 2015 · There is an eval() function in Python I stumbled upon while playing around. I cannot think of a case when this function is needed, except maybe as syntactic sugar. What …
What's the difference between eval, exec, and compile?
Oct 12, 2018 · I've been looking at dynamic evaluation of Python code, and come across the eval() and compile() functions, and the exec statement. Can someone please explain the …
Security of Python's eval() on untrusted strings? - Stack Overflow
Nov 22, 2014 · eval() will allow malicious data to compromise your entire system, kill your cat, eat your dog and make love to your wife. There was recently a thread about how to do this kind of …
Using python's eval () vs. ast.literal_eval () - Stack Overflow
174 ast.literal_eval() only considers a small subset of Python's syntax to be valid: The string or node provided may only consist of the following Python literal structures: strings, bytes, …
Python: make eval safe - Stack Overflow
Aug 18, 2010 · If you're satisfied with plain expressions using elementary-type literals only, use ast.literal_eval -- that's what it's for! For anything fancier, I recommend a parsing package, …
Dynamically evaluate an expression from a formula in Pandas
With Python backend, your expression is evaluated similar to just passing the expression to Python's eval function. You have the flexibility of doing more inside expressions, such as string …
python - Evaluating a mathematical expression in a string - Stack …
Mar 3, 2010 · Traceback (most recent call last): File "<stdin>", line 1, in <module> ValueError: invalid literal for int() with base 10: '2^4' I know that eval can work around this, but isn't there a …
python - How to convert string representation of list to a list
ast.literal_eval is safer than eval, but it's not actually safe. As recent versions of the docs explain: "Warning It is possible to crash the Python interpreter with a sufficiently large/complex string …
python - Safe eval () by explitily whitelisting builtins and bailing on ...
Jan 14, 2025 · I know it's inadvisable to use eval() on untrusted input, but I want to see where this sanitiser fails. It uses a whitelist to only allow harmless builtins, and it immediately bails if there …