Getting all class variables declared and their values

Asked Dec 29 '21 at 20:28

Active Dec 29 '21 at 20:28

Viewed 25 times

I am try to get all class variables and their values for a running script while using evals.

Here is the current implementation

class_vars = eval("dir(self)")
for var in class_vars:
    value = eval("self." + var)

Though, this is not optimal and takes a long time to process. So, Is there any way to improve this so fewer evals are needed (Preferably once, getting all the values) to fetch all class variables and their values.

asked Dec 29 '21 at 20:28

Jersey Devil

1

Why are you using `eval()`? You can just write `class_vars = dir(self)` – Barmar Dec 29 '21 at 20:32
1

Use `getattr(self, var)`, no need for `eval()`. – Barmar Dec 29 '21 at 20:33
Use `dir(self)` directly for the first one, and `getattr()` for the second one. You don't need `eval()` at all. – John Gordon Dec 29 '21 at 20:33
1

The idea of a properly designed class is that you *know* what attributes it has without having to query the object at run-time. – chepner Dec 29 '21 at 20:40
@Barmar, sorry for not being clear, these are called from a different script and sent as a message, so eval is needed – Jersey Devil Dec 29 '21 at 20:52
@JerseyDevil `eval` is extremely insecure. If the "different script" is an untrusted source, your system is vulnerable – Wondercricket Dec 29 '21 at 21:02
@Wondercricket, The other script is trusted, only issue is the time it takes to execute – Jersey Devil Dec 29 '21 at 21:06

Getting all class variables declared and their values

0 Answers0