/opt/sagemath-9.1/local/lib/python3.7/site-packages/psutil/_pscygwin.py:311: DeprecationWarning: invalid escape sequence \d
  search = re.compile('cpu\d')
/opt/sagemath-9.1/local/lib/python3.7/site-packages/psutil/_pscygwin.py:876: DeprecationWarning: invalid escape sequence \d
  def uids(self, _uids_re=re.compile(b'Uid:\t(\d+)')):
/opt/sagemath-9.1/local/lib/python3.7/site-packages/psutil/_pscygwin.py:887: DeprecationWarning: invalid escape sequence \d
  def gids(self, _gids_re=re.compile(b'Gid:\t(\d+)')):
Traceback (most recent call last):
  File "/opt/sagemath-9.1/src/bin/sage-eval", line 10, in <module>
    eval(compile(s,'<cmdline>','exec'))
  File "<cmdline>", line 1
SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \UXXXXXXXX escape