diff -up src/sage/sandpiles/sandpile.py.orig src/sage/sandpiles/sandpile.py --- src/sage/sandpiles/sandpile.py.orig 2021-05-09 16:00:11.000000000 -0600 +++ src/sage/sandpiles/sandpile.py 2021-05-28 11:34:47.438557513 -0600 @@ -347,9 +347,6 @@ from sage.rings.all import Integer, Poly from sage.symbolic.constants import I, pi from sage.symbolic.ring import SR -# TODO: remove the following line once 4ti2 functions are removed -path_to_zsolve = os.path.join(SAGE_LOCAL, 'bin', 'zsolve') - def _sandpile_help(cls, usage, verbose=True): @@ -5172,7 +5169,7 @@ class SandpileDivisor(dict): sign_file.write('\n') # compute try: - os.system(path_to_zsolve+' -q ' + lin_sys + ' > ' + lin_sys_log) + os.system('zsolve -q ' + lin_sys + ' > ' + lin_sys_log) # process the results zhom_file = open(lin_sys_zhom,'r') except IOError: