gh-35720: fix the linter and add more checks
    
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### 📚 Description

this is fixing, once again, the just-recently broken linter

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URL: #35720
Reported by: Frédéric Chapoton
Reviewer(s): Matthias Köppe

Author: Release Manager

src/sage/algebras/commutative_dga.py

@@ -3886,9 +3886,8 @@ class CohomologyClass(SageObject, CachedRepresentation):
         sage: CohomologyClass(x^2+2*y*z, A)
         [2*y*z + x^2]
 
-
     TESTS:
-    
+
     In order for the cache to not confuse objects with the same representation,
     we can pass the parent of the representative as a parameter::
 

src/sage/algebras/lie_algebras/affine_lie_algebra.py

@@ -1211,4 +1211,4 @@ def __iter__(self):
                 for r in self._roots:
                     yield P((r, i))
                 for r in self._ac:
-                    yield P((r, i))
+                    yield P((r, i))

src/sage/knots/link.py

@@ -3652,7 +3652,6 @@ def delta(u, v):
             ims += sum(line(a[0], **kwargs) for a in im)
         return image
 
-
     def _markov_move_cmp(self, braid):
         r"""
         Return whether ``self`` can be transformed to the closure of ``braid``
@@ -4120,7 +4119,6 @@ def answer_list(l):
 
             raise NotImplementedError('this link cannot be uniquely determined%s' %non_unique_hint)
 
-
         self_m = self.mirror_image()
         ls, proved_s = self._knotinfo_matching_list()
         lm, proved_m = self_m._knotinfo_matching_list()
@@ -4147,18 +4145,18 @@ def answer_list(l):
         cr = len(self.pd_code())
         if self.is_knot() and cr > 12:
             # we cannot not be sure if this link is recorded in the KnotInfo database
-            raise NotImplementedError('this knot having more than 12 crossings cannot be%s determined%s' %uniq_txt)
+            raise NotImplementedError('this knot having more than 12 crossings cannot be%s determined%s' % uniq_txt)
 
         if not self.is_knot() and cr > 11:
             # we cannot not be sure if this link is recorded in the KnotInfo database
-            raise NotImplementedError('this link having more than 11 crossings cannot be%s determined%s' %uniq_txt)
+            raise NotImplementedError('this link having more than 11 crossings cannot be%s determined%s' % uniq_txt)
 
         H = self.homfly_polynomial(normalization='vz')
 
         if sum(exp for f, exp in H.factor()) > 1:
             # we cannot be sure if this is a prime link (see the example for the connected
             # sum of K4_1 and K5_2 in the doctest of :meth:`_knotinfo_matching_list`)
-            raise NotImplementedError('this (possibly non prime) link cannot be%s determined%s' %uniq_txt)
+            raise NotImplementedError('this (possibly non prime) link cannot be%s determined%s' % uniq_txt)
 
         if not l:
             from sage.features.databases import DatabaseKnotInfo
@@ -4167,7 +4165,6 @@ def answer_list(l):
 
         return answer_list(l)
 
-
     def is_isotopic(self, other):
         r"""
         Check whether ``self`` is isotopic to ``other``.

src/sage/rings/polynomial/multi_polynomial_element.py

@@ -2119,13 +2119,13 @@ def factor(self, proof=None):
         # try to use univariate factoring
         try:
             F = self.univariate_polynomial().factor()
-            return Factorization([(R(f),m) for f,m in F], unit=F.unit())
+            return Factorization([(R(f), m) for f, m in F], unit=F.unit())
         except TypeError:
             pass
 
         base_ring = self.base_ring()
         if base_ring.is_finite():
-            if base_ring.characteristic() > 1<<29:
+            if base_ring.characteristic() > 1 << 29:
                 raise NotImplementedError("Factorization of multivariate polynomials over prime fields with characteristic > 2^29 is not implemented.")
 
         if proof is None:

src/tox.ini

@@ -126,8 +126,8 @@ description =
     # W605: invalid escape sequence ‘x’
     # See https://pycodestyle.pycqa.org/en/latest/intro.html#error-codes
 deps = pycodestyle
-commands = pycodestyle --select E111,E211,E271,E303,E306,E401,E502,E701,E702,E703,E714,W291,W293,W391,W605,E711,E712,E713,E721,E722 {posargs:{toxinidir}/sage/}
-       pycodestyle --select E111,E306,E401,E703,W293,W391,W605,E712,E713,E714,E721,E722 --filename *.pyx {posargs:{toxinidir}/sage/}
+commands = pycodestyle --select E111,E21,E227,E271,E303,E306,E401,E502,E701,E702,E703,E71,E72,W291,W293,W391,W605 {posargs:{toxinidir}/sage/}
+       pycodestyle --select E111,E306,E401,E703,W29,W391,W605,E712,E713,E714,E721,E722 --filename *.pyx {posargs:{toxinidir}/sage/}
 
 [pycodestyle]
 max-line-length = 160