Port it to python3

etc/project.vars

 export venv_dir="env"
 export spec=""
-export venv="`which virtualenv-2.7`"
-if [ x"$venv" = x ]; then
-	export venv="`which virtualenv`"
-	export spec="-p 2.7"
-fi
+export venv="/usr/bin/virtualenv"
+#if [ x"$venv" = x ]; then
+#	export venv="`which virtualenv`"
+#	export spec="-p 2.7"
+#fi

etc/reqs.txt

 pytz>=2012
-Flask==1.0.2
-Babel==1.3
-Flask-Babel==0.9
-Flask-Caching==1.4.0
-Jinja2==2.10
-Pygments==1.6
-python-ctags
-docutils==0.11
+Flask==3.0.0
+Babel==2.13.1
+Flask-Babel==4.0.0
+Flask-Caching==2.1.0
+Jinja2==3.1.2
+Pygments>=1.6
+python-ctags3
+docutils==0.20.1
 gunicorn==0.17.2
-werkzeug==0.16.1
+werkzeug>=0.16.1
+markupsafe>=2.0.1
+six
\ No newline at end of file

i2p2www/__init__.py

 # -*- coding: utf-8 -*-
 from __future__ import absolute_import
-from flask import Flask, request, g, redirect, url_for, abort, render_template, send_from_directory, safe_join
+from flask import Flask, request, g, redirect, url_for, abort, render_template, send_from_directory
+from werkzeug.utils import safe_join
 try:
     from flaskext.babel import Babel
 except ImportError:
@@ -141,7 +142,7 @@ cache = Cache(app, config=CACHE_CONFIG)
 #################
 # Babel selectors
 
-@babel.localeselector
+#@babel.localeselector
 def get_locale():
     # If viewing specs, require English
     if request.path.startswith('/spec'):
@@ -153,7 +154,7 @@ def get_locale():
     # header the browser transmits. The best match wins.
     return request.accept_languages.best_match(SUPPORTED_LANGS)
 
-@babel.domainselector
+#@babel.domainselector
 def get_domains():
     domains = []
     frags = request.path.split('/', 2)
@@ -168,6 +169,7 @@ def get_domains():
     domains.append(DEFAULT_GETTEXT_DOMAIN)
     return domains
 
+babel.init_app(app, locale_selector=get_locale, default_domain=get_domains)
 
 ##########################
 # Hooks - helper functions

i2p2www/formatters.py

@@ -14,11 +14,14 @@ from __future__ import print_function
 import os
 import sys
 import os.path
-import StringIO
+try:
+    from StringIO import StringIO
+except ImportError:
+    from io import StringIO
 
 from pygments.formatter import Formatter
 from pygments.token import Token, Text, STANDARD_TYPES
-from pygments.util import get_bool_opt, get_int_opt, get_list_opt, bytes
+from pygments.util import get_bool_opt, get_int_opt, get_list_opt#, bytes
 import six
 from six.moves import range
 

i2p2www/helpers.py

 from __future__ import absolute_import
 from math import ceil
-from werkzeug import import_string, cached_property
+from werkzeug.utils import cached_property, import_string
 from six.moves import range
 
 ########################

i2p2www/templatevars.py

 from __future__ import absolute_import
 import ctags
-from flask import g, request, safe_join, url_for
+from flask import g, request, url_for
+from werkzeug.utils import safe_join
 import os.path
 from six.moves.urllib.parse import urlsplit, urlunsplit