Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "sage/rings/complex_double.pyx", line 101, in init sage.rings.complex_double (build/cythonized/sage/rings/complex_double.c:25245)
  File "/usr/lib/python3.9/site-packages/sage/rings/complex_field.py", line 114, in ComplexField
    C = ComplexField_class(prec)
  File "/usr/lib/python3.9/site-packages/sage/rings/complex_field.py", line 214, in __init__
    self._populate_coercion_lists_(coerce_list=[RRtoCC(self._real_field(), self)])
  File "sage/rings/complex_number.pyx", line 2615, in sage.rings.complex_number.RRtoCC.__init__ (build/cythonized/sage/rings/complex_number.c:21395)
  File "sage/categories/map.pyx", line 125, in sage.categories.map.Map.__init__ (build/cythonized/sage/categories/map.c:3580)
  File "/usr/lib/python3.9/site-packages/sage/categories/homset.py", line 396, in Hom
    H = Hom(X, Y, category, check=False)
  File "/usr/lib/python3.9/site-packages/sage/categories/homset.py", line 423, in Hom
    H = X._Hom_(Y, category)
  File "/usr/lib/python3.9/site-packages/sage/categories/rings.py", line 422, in _Hom_
    from sage.rings.homset import RingHomset
  File "/usr/lib/python3.9/site-packages/sage/rings/homset.py", line 19, in <module>
    from . import quotient_ring
  File "/usr/lib/python3.9/site-packages/sage/rings/quotient_ring.py", line 114, in <module>
    import sage.rings.polynomial.multi_polynomial_ideal
  File "/usr/lib/python3.9/site-packages/sage/rings/polynomial/multi_polynomial_ideal.py", line 236, in <module>
    from sage.interfaces.all import (singular as singular_default,
  File "/usr/lib/python3.9/site-packages/sage/interfaces/all.py", line 34, in <module>
    from .qsieve import qsieve
  File "/usr/lib/python3.9/site-packages/sage/interfaces/qsieve.py", line 13, in <module>
    from sage.misc.all import tmp_dir
  File "/usr/lib/python3.9/site-packages/sage/misc/all.py", line 90, in <module>
    from .functional import (additive_order,
  File "/usr/lib/python3.9/site-packages/sage/misc/functional.py", line 26, in <module>
    from sage.rings.complex_double import CDF
ImportError: cannot import name 'CDF' from partially initialized module 'sage.rings.complex_double' (most likely due to a circular import) (/usr/lib/python3.9/site-packages/sage/rings/complex_double.cpython-39-x86_64-linux-gnu.so)