Python standard library: Formatting strings

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[cetilly]

Hi Reuven, follow up question for you. Here is an example that prints text as column headers three different ways. I want to use the first method because it is a cleaner way of set the column width dynamically. The second method uses hard coded values, which makes the code less flexible. But the third method is uses a lot of concatenation which makes the code less readable. However, the second and third methods are the only methods that work. The first method doesn’t work, but why? Is there a cleaner way to set column width dynamically?

w1 = '25'
w2 = '15'
headers = ('First', 'Last')

template = f'|{0:^{w1}}|{1:^{w2}}|'


template = '|{0:^25}|{1:^15}|'


template = '|{0:^' + w1 + '}|{1:^' + w2 + '}|'

[CrapE_DM]

Your keyboard sounds awesome. What model and/or keys are you using?

[cetilly]

What about performing these same actions on string literals, e.g. a string that is a list of column headers that you want to be the same formatting as the data which will come in as variables? Possible?