Arrow keys crash imexam()

[vrijmoet]

I am running imexam with DS9 on Linux (Rocky8), mostly non-interactively (calling functions through Python scripts). This also happens when I run it on my Mac laptop (Big Sur 11.2.3).

If I load a FITS image and run imexam(), everything works as expected except for the arrow keys, which crash the program with an XPA Exception. Here is the launch sequence from my script:

viewer = imexam.connect('myds9') time.sleep(3) viewer.load_fits('20121116.09.073.o.fits') viewer.scale() viewer.zoomtofit() inp = viewer.imexam()

And here is the error I get when I use an arrow key in DS9:

Traceback (most recent call last): File "/Users/eliothalley/Astronomy/test.py", line 59, in inp = viewer.imexam() File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/imexam/connect.py", line 150, in imexam self._run_imexam() File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/imexam/connect.py", line 252, in _run_imexam self.cursor(x=x, y=y) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/imexam/connect.py", line 348, in cursor self.window.cursor(**kwargs) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/imexam/ds9_viewer.py", line 931, in cursor self.set("cursor {0:s} {1:s}".format(str(x), str(y))) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/imexam/ds9_viewer.py", line 667, in set self.xpa.set(param, buf) File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/imexam/xpa_wrap.py", line 18, in set super(XPA, self).set(param.encode('utf-8', 'strict'), buf) File "wrappers/xpa.pyx", line 177, in imexam.imexamxpa.xpa.set File "wrappers/xpa.pyx", line 147, in imexam.imexamxpa._set imexam.imexamxpa.XpaException: b'XPA$ERROR parse error, expecting: integer, found 485.23958 (DS9:myds9 7f000001:54597)\n'

Let me know if any other info would be helpful!