I want to have Python 2.7 print out floating point numbers in scientific notation, forced to start with 0. For instance, assume >>> a = 1234567890e12 >>> print '{:22.16E}'.format(a) 1.2345678900000000E+21 However, I want a print output that looks like: 0.1234567890000000E+22 Notice that the exponent is raised by one since the desired output is forced to a leading zero. How can I achieve this? Continue reading...