The eval() method parses the expression passed to this and runs python code within the program
In simple terms, the eval() function runs the python code (which is passed as an argument) within the program.
Warnings when using eval():
Consider a situation where you are using a Unix system (macOS, Linux etc) and you have imported the os module. The os module provides a portable way to use operating system functionalities like reading or writing to a file.
If you allow users to input a value using eval(input()), the user may issue commands to change file or even delete all the files using the command: os.system('rm -rf *').
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