Python placeholders in strings containing the % symbol

Question

I want to be able to use a placeholder in a string that already contains a % symbol. For instance, I would like to be able to iterate to open multiple URLs by m

Answer 1

You can escape % by doubling it:

>>> 'http://www.example.com/BLABLA%%123BLABLApage=%d' % (1,)
'http://www.example.com/BLABLA%123BLABLApage=1'

Alternatively, use str.format() formatting instead:

>>> 'http://www.example.com/BLABLA%123BLABLApage={:d}'.format(1)
'http://www.example.com/BLABLA%123BLABLApage=1'