如何将字符串读入词典列表？

Question

I'm trying to turn a some strings into a list.

I have have various strings called elementX, which I want to turn into a list with the same structure as Options.

#turn string into list
element1 = {'label': '26', 'value': '26'}
element2 = {'label': '28', 'value': '28'}
element3 = {'label': '29', 'value': '29'}
type(element1)

options=[
        {'label': '26', 'value': '26'},
        {'label': '28', 'value': '28'},
        {'label': '29', 'value': '29'},
     ]

Goal is it to offer the labels of the string as Options in a Dropdown.dcc from Dash.

Answer 1

@zacha2, what is wrong with [element1, element2, element3] ?

Keep in mind that until 3.6 or 3.7, dictionaries are unordered so when you print them, the 'label' and 'value' tuples might be transposed but this doesn't affect the functionality of the dictionaries.

Or do you have an arbitrary number of dictionaries called elementNNN and you want to collect them all at runtime? First I would reconsider your design so that you have instead something like elements[] instead. But if you really need to do this for an arbitrary number of elementN variables, you can use:

[v for (k,v) in locals().items if k.startswith('element')]

The locals() function will return a dictionary of local variables and their associated values.