How to call a value of an object in a list by using string

Question

I want to call a value of an object stored in a list:

List is: circles #storing 40 circle objects

The object is: a circle storing values #direction in x and y

Now i want to call circles[0].dirnx but dirnx is a string called whichDir

In Code:

whichCircle = 0
whichSpeed = 1
whichDir = 'dirnx' # dirnx = direction in x
dots[whichCircle].whichDir = whichSpeed

Of course python creates dots[whichCircle].whichDir and stores whichSpeed but i want to store in dots[whichCircle].dirnx

What is the proper way to do this?

SamProell · Accepted Answer · 2019-04-26 10:53:26Z

1

using the special variable __dict__ should achieve what you want:

dots[whichCircle].__dict__[whichDir] = whichSpeed

answered Apr 26, 2019 at 10:53

SamProell

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Comments

Michael Dodd · Accepted Answer · 2019-04-26 11:10:25Z

0

If you want to find an item with a specific value in a list, you can do the following:

list_name.index('dirnx')

This will return the index of the position in the list.

Michael Dodd

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answered Apr 26, 2019 at 10:43

mSkou

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