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.

But they are rare. Using eval in your case is a bad practice for sure. I'm emphasizing on bad practice because eval and exec are frequently used in the wrong place. Replying to the …

Nov 22, 2014 · 14 You can get to os using builtin functions: __import__('os'). For python 2.6+, the ast module may help; in particular ast.literal_eval, although it depends on exactly what you …

Oct 10, 2016 · To call a function from a variable containing the name of the function, you can make use of the locals and globals function. Basically, you treat the output of locals() as a …

173 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, …

Apr 8, 2011 · By the way, there are many ways to avoid using exec / eval if all you need is a dynamic name to assign, e.g. you could use a dictionary, the setattr function, or the locals() …

Feb 9, 2014 · I'm using Python 3. How can I input an expression without using eval (input ("Input: "))? I needed eval for an algebra calculator.

Jul 6, 2009 · 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 could an …

Oct 12, 2018 · The short answer, or TL;DR Basically, eval is used to eval uate a single dynamically generated Python expression, and exec is used to exec ute dynamically …

Nov 11, 2015 · Python Programming: how to eval values from dictionary? Asked 9 years, 10 months ago Modified 9 years ago Viewed 21k times