Matlab-> Python，如何将二进制文件转换为一维浮点数组？ 在Matlab中工作正常，但无法在Python中重现

Question

In Matlab, binary file section 'block' is 2048 bytes and is read as follows:

fseek(fileID, 2024, 'bof');
data = fread(fileID, block, '*float');

Output of data is a 2048x1 single precision array, example below...

15.5567
-1.9876
0.0529
25.97620

In Python, I make sure to seek to same section of the file and use 2048 bytes 'block' to read the binary section. I then tried to use struct unpack function to convert the binary to the single precision floating numbers.

fileID.seek(2024,0)
data = unpack('2048f',block)

First, I get errors for bytes object of length. So I change size to see if atleast the output will give me something similar.

data = unpack('512f',block)
print(data)

Output gives very small and larger numbers

-14.858826637268066
5.938749347655264e-36
1.767982006072998
-24509016064.0

Any help is appreciated. I also tried to use

data = numpy.frombuffer(block, dtype=numpy.float32)

with basically same results.

Answer 1

Here is the answer I found. Works perfectly.

 data = []

 for i in range(0, 2048): 
    data.append(unpack('>f', fileID.read(4))[0]

The output of data is exactly the same as Matlab.