diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.11", "3.12"]
+        python-version: ["3.12"]
     steps:
     - uses: actions/checkout@v4
 

diff --git a/pyproject.toml b/pyproject.toml
@@ -41,7 +41,7 @@ build-backend = "mesonpy"
 
 [tool.cython-lint]
 max-line-length = 120
-ignore = ['E114','E117','E127','E128','E129','E202','E221','E222','E231','E261','E262','E265','E302','E303','E306','E501','E701','E703','E711','E722','E731','E741','E743','W391']
+ignore = ['E114','E117','E127','E128','E129','E202','E221','E222','E231','E261','E262','E265','E501','E711','E722','E731','E741','E743']
 exclude = 'src/flint/flintlib/.*'
 
 [tool.spin]

diff --git a/src/flint/types/acb.pyx b/src/flint/types/acb.pyx
@@ -97,7 +97,6 @@ cdef any_as_acb_or_notimplemented(x):
 #         return acb(x)
 
 
-
 # Copied with modifications from sage/rings/complex_arb.pyx
 @cython.internal
 cdef class IntegrationContext:

diff --git a/src/flint/types/acb_poly.pyx b/src/flint/types/acb_poly.pyx
@@ -424,4 +424,3 @@ cdef class acb_poly(flint_poly):
         arf_set_mag(arb_midref((<arb>r).val), m)
         mag_clear(m)
         return r
-
diff --git a/src/flint/types/acb_series.pxd b/src/flint/types/acb_series.pxd
@@ -7,4 +7,3 @@ cdef class acb_series(flint_series):
     cdef long prec
     cpdef long length(self)
     cpdef valuation(self)
-
diff --git a/src/flint/types/acb_series.pyx b/src/flint/types/acb_series.pyx
@@ -854,4 +854,3 @@ cdef class acb_series(flint_series):
         acb_poly_lambertw_series((<acb_series>u).val, (<acb_series>s).val, (<fmpz>k).val, 0, cap, getprec())
         (<acb_series>u).prec = cap
         return u
-
diff --git a/src/flint/types/arb.pyx b/src/flint/types/arb.pyx
@@ -2656,4 +2656,3 @@ cdef class arb(flint_scalar):
         arb_hypgeom_coulomb(NULL, (<arb>G).val,
                         (<arb>l).val, (<arb>eta).val, (<arb>self).val, getprec())
         return G
-
diff --git a/src/flint/types/fmpq_mat.pyx b/src/flint/types/fmpq_mat.pyx
@@ -506,5 +506,3 @@ cdef class fmpq_mat(flint_mat):
         if n % 2:
             v *= self
         return v
-
-
diff --git a/src/flint/types/fmpq_series.pyx b/src/flint/types/fmpq_series.pyx
@@ -525,4 +525,3 @@ cdef class fmpq_series(flint_series):
         fmpq_poly_tanh_series((<fmpq_series>u).val, (<fmpq_series>s).val, cap)
         (<fmpq_series>u).prec = cap
         return u
-
diff --git a/src/flint/types/fmpz.pyx b/src/flint/types/fmpz.pyx
@@ -1021,4 +1021,3 @@ cdef class fmpz(flint_scalar):
         if ttype == FMPZ_TMP:
             fmpz_clear(tval)
         return fmpz(v)
-
diff --git a/src/flint/types/fmpz_poly.pyx b/src/flint/types/fmpz_poly.pyx
@@ -647,4 +647,3 @@ cdef class fmpz_poly(flint_poly):
                     return int(i)
         libc.stdlib.free(phi)
         return 0
-
diff --git a/src/flint/types/fmpz_series.pyx b/src/flint/types/fmpz_series.pyx
@@ -358,4 +358,3 @@ cdef class fmpz_series(flint_series):
         fmpz_poly_revert_series((<fmpz_series>u).val, (<fmpz_series>s).val, cap)
         (<fmpz_series>u).prec = cap
         return u
-
diff --git a/src/flint/types/nmod_series.pyx b/src/flint/types/nmod_series.pyx
@@ -2,4 +2,3 @@ from flint.flint_base.flint_base cimport flint_series
 
 cdef class nmod_series(flint_series):
     pass
-
Original file line number	Diff line number	Diff line change
Expand Up		@@ -424,4 +424,3 @@ cdef class acb_poly(flint_poly):
		arf_set_mag(arb_midref((<arb>r).val), m)
		mag_clear(m)
		return r
Original file line number	Diff line number	Diff line change
Expand Up		@@ -7,4 +7,3 @@ cdef class acb_series(flint_series):
		cdef long prec
		cpdef long length(self)
		cpdef valuation(self)
Original file line number	Diff line number	Diff line change
Expand Up		@@ -854,4 +854,3 @@ cdef class acb_series(flint_series):
		acb_poly_lambertw_series((<acb_series>u).val, (<acb_series>s).val, (<fmpz>k).val, 0, cap, getprec())
		(<acb_series>u).prec = cap
		return u
Original file line number	Diff line number	Diff line change
Expand Up		@@ -2656,4 +2656,3 @@ cdef class arb(flint_scalar):
		arb_hypgeom_coulomb(NULL, (<arb>G).val,
		(<arb>l).val, (<arb>eta).val, (<arb>self).val, getprec())
		return G
Original file line number	Diff line number	Diff line change
Expand Up		@@ -506,5 +506,3 @@ cdef class fmpq_mat(flint_mat):
		if n % 2:
		v *= self
		return v
Original file line number	Diff line number	Diff line change
Expand Up		@@ -525,4 +525,3 @@ cdef class fmpq_series(flint_series):
		fmpq_poly_tanh_series((<fmpq_series>u).val, (<fmpq_series>s).val, cap)
		(<fmpq_series>u).prec = cap
		return u
Original file line number	Diff line number	Diff line change
Expand Up		@@ -1021,4 +1021,3 @@ cdef class fmpz(flint_scalar):
		if ttype == FMPZ_TMP:
		fmpz_clear(tval)
		return fmpz(v)
Original file line number	Diff line number	Diff line change
Expand Up		@@ -647,4 +647,3 @@ cdef class fmpz_poly(flint_poly):
		return int(i)
		libc.stdlib.free(phi)
		return 0
Original file line number	Diff line number	Diff line change
Expand Up		@@ -358,4 +358,3 @@ cdef class fmpz_series(flint_series):
		fmpz_poly_revert_series((<fmpz_series>u).val, (<fmpz_series>s).val, cap)
		(<fmpz_series>u).prec = cap
		return u
Original file line number	Diff line number	Diff line change
Expand Up		@@ -2,4 +2,3 @@ from flint.flint_base.flint_base cimport flint_series

		cdef class nmod_series(flint_series):
		pass