Error with read_write.read_modes

[John-Ragland]

I'm running python 3.7.10 on macOS 12.0.1

When running pyat/test/krak_test/test.py I get the following error:

Traceback (most recent call last):
  File "test.py", line 89, in <module>
    modes = read_modes(**options)
  File "*/pyat/pyat/readwrite.py", line 1225, in read_modes
    k    = unpack('f'*2*M, f.read(4*2*M))
struct.error: unpack requires a buffer of 296 bytes

In trying to debug it:

line 1224 f.seek(rec * lrecl)

• (rec * lrecl) is equal to 70400
• the length of the entire file also appears to be 70400 (code how I determined this below)
• I believe that means that before line 1225, where the original error is the file pointer is placed at the end of the file

with open(filename, 'rb') as f:
    f.seek(0)
    test = f.read()

print(len(test))

>>>70400

one other note, I was able to successfully use this code previously a couple of months ago, but now it doesn't work. Unsure if this is due to changes in the code or changes to my local working environment since then

[John-Ragland]

Just checked out to commit from May 2021 'who knows' which was back when it was working for me and I get the same error, so I don't believe it is something that has changed in the code since then.

[John-Ragland]

Turns out it was a problem with my at installation and unrelated to pyat 🤦‍♂️

closing issue