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pythonformattingoutput
Bolce Bussiere
Bolce Bussiere

Reputation: 167

Auto-Format String Python

How can I automatically format a string in Python?

I'm trying to print the remainders of pascal's triangle modulo seven, up to a row number specified by the user. Furthermore, I want it to be properly centered. For example, if the number of rows to be printed is 20, then I would print

print('{:^41}'.format(row_x))

For each row x<=20.

But, like I said above, I want the number of rows to change. I've tried

print('{:^'+str(rownumber*2 +1)'+'}'.format(row_x))

As well as

print('{:^rownumber*2 +1}'.format(row_x))

Both of which give me an error. What's the proper way of doing this?

Upvotes: 0

Views: 1177

Answers (1)

Eamonn Kenny
Eamonn Kenny

Reputation: 2062

Doesn't work if inserted into the formatting area for some reason so use instead:

 >>> x = 20
 >>> a = '{:^' + str(2*x+1) + '}'
 >>> print(a.format(x))
 >>>                   20

Upvotes: 1

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