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diff --git a/src/sage/rings/finite_rings/element_pari_ffelt.pyx b/src/sage/rings/finite_rings/element_pari_ffelt.pyx
index ff73a1f..fba303a 100644
--- a/src/sage/rings/finite_rings/element_pari_ffelt.pyx
+++ b/src/sage/rings/finite_rings/element_pari_ffelt.pyx
@@ -869,7 +869,7 @@ cdef class FiniteFieldElement_pari_ffelt(FinitePolyExtElement):
Univariate Polynomial Ring in beta over Finite Field of size 3
"""
sig_on()
- return self._parent.polynomial_ring(name)(new_gen(FF_to_FpXQ_i(self.val)))
+ return self._parent.polynomial_ring(name)(new_gen(FF_to_FpXQ(self.val)))
def minpoly(self, var='x'):
"""
diff --git a/src/sage/rings/number_field/maps.py b/src/sage/rings/number_field/maps.py
index 1727c13..5717227 100644
--- a/src/sage/rings/number_field/maps.py
+++ b/src/sage/rings/number_field/maps.py
@@ -358,7 +358,7 @@ class MapRelativeNumberFieldToRelativeVectorSpace(NumberFieldIsomorphism):
g = g(beta).lift()
# Convert the coefficients to elements of the base field.
B, from_B, _ = K.absolute_base_field()
- return self.codomain()([from_B(B(z.lift(), check=False)) for z in g.Vecrev(-K.relative_degree())])
+ return self.codomain()([from_B(B(z.lift(), check=False)) for z in g.Vecrev(K.relative_degree())])
class NameChangeMap(NumberFieldIsomorphism):
diff --git a/src/sage/rings/polynomial/polynomial_element.pyx b/src/sage/rings/polynomial/polynomial_element.pyx
index 2b5504a..8bd32dd 100644
--- a/src/sage/rings/polynomial/polynomial_element.pyx
+++ b/src/sage/rings/polynomial/polynomial_element.pyx
@@ -4364,8 +4364,7 @@ cdef class Polynomial(CommutativeAlgebraElement):
sage: G.prod() == g
True
"""
- pols = G[0]
- exps = G[1]
+ pols, exps = G
R = self._parent
F = [(R(f), int(e)) for f, e in zip(pols, exps)]
diff --git a/src/sage/rings/power_series_pari.pyx b/src/sage/rings/power_series_pari.pyx
index e37e0a3..2e03ade 100644
--- a/src/sage/rings/power_series_pari.pyx
+++ b/src/sage/rings/power_series_pari.pyx
@@ -678,7 +678,8 @@ cdef class PowerSeries_pari(PowerSeries):
g = g.truncate()
if typ(g.g) == t_POL and varn(g.g) == vn:
# t_POL has 2 codewords. Use new_ref instead of g[i] for speed.
- return [R(g.new_ref(gel(g.g, i))) for i in range(2, lg(g.g))]
+ G = g.fixGEN()
+ return [R(g.new_ref(gel(G, i))) for i in range(2, lg(G))]
else:
return [R(g)]
@@ -729,6 +730,7 @@ cdef class PowerSeries_pari(PowerSeries):
return []
cdef pari_gen g = self.g
+ g.fixGEN()
cdef long l, m
R = self.base_ring()
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