Python String to Float with 8 decimal point conversion

Question

Below is my String.

str = '0.00007515'

tried below

mainValue = float(str)  gives me 7.515e-05 output.
 mainValue =Decimal(str) gives me 0.0 output

I wanted to output in 0.00007515 float or other datatype. How can i solve this.

Answer 1

Just specify that you need 8 digits after the decimal point when printing the value!

mainValue = float(str)
print("{:.8f}".format(mainValue))

Answer 2

以您需要的精度使用简单的格式功能。

print("{0:.8f}".format(float(str)))