Search code examples
pythonpython-3.xlistdeclaration

Is there a way to declare variables in list creation?

I'd like to create and assign new String variables when I create my list. I'd like to do something like:

l = [first = "first", second = "second"]

Is something like this possible?

Solution

  • That syntax is not allowed. Instead you can do the following (You can name it whatever you like, in-place unpacking, iterable unpacking, etc.):

    first, second = ["first", "second"]

    However, very similar to what you want to do you can create a dictionary as following which also seems more efficient and Pythonic for your goal here. 

    In [1]: d = dict(first_k = "first", second_k = "second")

In [2]: d['first_k']
Out[2]: 'first'

In [3]: d.keys()
Out[3]: dict_keys(['first_k', 'second_k'])

In [4]: d.values()
Out[4]: dict_values(['first', 'second'])