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printing - Python, want to print float in exact format +-00.00

I need to format a float to the format +-00.00, tried the basic string formatting but can't get the leading + or - sign or two leading 0s if the value is fractional, any pointers?

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'%+06.2f' % 1.1123344

+ means always use sign
0 means zero fill to full width.
6 is the total field width including sign and decimal point
.2 means 2 decimals.
f is float

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