Declare support for Python 3.13

Author: AA-Turner

pyproject.toml

@@ -34,6 +34,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
     "Framework :: Sphinx",
@@ -299,6 +300,7 @@ select = [
     "E116",  # Unexpected indentation (comment)
     "E117",  # Over-indented (comment)
     "E201",  # Whitespace after '{symbol}'
+    "E201",  # Whitespace after '{symbol}'
     "E202",  # Whitespace before '{symbol}'
     "E203",  # Whitespace before '{punctuation}'
     "E211",  # Whitespace before '{bracket}'

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 2.4.0
-envlist = py{39,310,311,312}
+envlist = py{39,310,311,312,313}
 isolated_build = True
 
 [testenv]
@@ -17,7 +17,7 @@ passenv =
     EPUBCHECK_PATH
     TERM
 description =
-    py{39,310,311,312}: Run unit tests against {envname}.
+    py{39,310,311,312,313}: Run unit tests against {envname}.
 extras =
     test
 setenv =