Question

In wanting to create an STL file, I need to write a REAL32 value to a file in binary IEEE floating point format. How do I do this in Python?

Answer 1

You want struct

with open(youroutput,'wb') as fout:
    fout.write(struct.pack('<f',300.0))

Here, < means little endian and f means float (32 bits, IEEE).

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If you want to write multiple values in 1 go:

values = (300.0, 200.0, 100.0)
fout.write(struct.pack('<3f',*values))