advance the linter (add more checks)

Author: fchapoton

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,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/}
+commands = pycodestyle --select E111,E21,E222,E227,E251,E271,E303,E306,E401,E502,E701,E702,E703,E71,E72,W291,W293,W391,W605 {posargs:{toxinidir}/sage/}
+       pycodestyle --select E111,E271,E275,E306,E401,E703,E712,E713,E714,E72,W29,W391,W605, --filename *.pyx {posargs:{toxinidir}/sage/}
 
 [pycodestyle]
 max-line-length = 160