Become Python 3 only

* Run flynt --upgrade to modernize things

Author: akx

README.md

@@ -1,4 +1,4 @@
-This is a Python 2.x WSGI version of https://github.com/fehmicansaglam/progressed.io, so all credit
+This is a Python 3.x WSGI version of https://github.com/fehmicansaglam/progressed.io, so all credit
 for the idea and original implementation is due to Fehmi Can Sağlam.
 
 I wrote it as a little snack of sorts, but it may be useful for understanding how to write very simple

progressed.py

@@ -1,9 +1,7 @@
-# -- encoding: UTF-8 --
-
 import re
 import sys
 
-SVG_TEMPLATE = u"""
+SVG_TEMPLATE = """
 <svg height="18" width="90" xmlns="http://www.w3.org/2000/svg">
   <linearGradient id="a" x2="0" y2="100%%">
     <stop offset="0" stop-color="#fff" stop-opacity=".7"/>
@@ -51,18 +49,15 @@ def simple_response(start_response, content, status_line="200 OK",
     :param content_type: The content type header. Defaults to UTF-8 HTML.
     :return: An iterable of content ready to be returned to the WSGI server.
     """
-    if (sys.version_info > (3, 0)):
-        content = str(content).encode("UTF-8")
-    else:
-        content = unicode(content).encode("UTF-8")
+    content = str(content).encode("UTF-8")
     start_response(status_line, [
         ("Content-Length", str(len(content))),
         ("Content-Type", content_type)
     ])
     return [content]
 
 
-BAR_PATH_RE = re.compile("^/bar/(\d+)$")
+BAR_PATH_RE = re.compile(r"^/bar/(\d+)$")
 
 
 def application(environ, start_response):
@@ -82,10 +77,10 @@ def application(environ, start_response):
             content_type="image/svg+xml"
         )
     elif path == "/ping":
-        return simple_response(start_response, u"pong")
+        return simple_response(start_response, "pong")
     else:
         return simple_response(
-            start_response, u"Not found.", status_line="404 Not Found")
+            start_response, "Not found.", status_line="404 Not Found")
 
 
 def standalone():