Is there a way to turn a string into a usable object?-CodePudding

So I am creating a program that has different possible string outputs. For example, the outputs could either be "a", "b", or "c". However I want to be able to use these outputs as an object. I already have objects initialized as a b and c. For example:

class Letter:
  pass

a = Letter()
b = Letter()
c = Letter()

output = random.choice(["a", "b", "c"])

#for example it would output "a"
#then I would "call" (lack of a better term) the a object to do something with it
#basically the output decides which object I would use

a.color = "green"

CodePudding user response：

You can make dict to check, which object needs to be used.

ouput = random.choice("a", "b", "c")
output_var_dict = {"a": a, "b": b, "c": c}

output_var_dict[ouput].color = green

not recommended


globals().update({output: Letter()})
a.color="green"

CodePudding user response：

Use the objects directly:

output = random.choice([a, b, c])

output.color = 'green'

Note that this alerts the original object.

For working on copies:

from copy import copy

l = [a, b, c]
output = random.choice([copy(x) for x in l])

output.color = 'green'

CodePudding user response：

Just use random.choice([a, b, c]) instead of random.choice(["a", "b", "c"])

Which will give you the random object.