将一串Java float解析为python int

Question

I have sockets sending data in string format between java and python. The python client receives floating point numbers in strings as eg data_in = "[F@5cf0ac6e" , and then attempts to convert them to integers with value = int(float(data_in[1:])) . However python returns the error ValueError: could not convert string to float: F@5cf0ac6e . How can get the java float values to integers in python? Thanks!

Answer 1

If the first three characters of data_in are not relevant to the string of hex digits, your slice should be data_in[3:] . This will ignore the [F@ characters, and just convert 5cf0ac6e .

However, the call to float() is not necessary. Instead, use:

value = int(data_in[3:], 16)

as any floating point information is lost anyway with the conversion to an integer. The 16 parameter to int() is necessary because you're converting from base 16 (hexadecimal).