diff --git a/create_config.py b/create_config.py
index cdee344..7b92962 100644
--- a/create_config.py
+++ b/create_config.py
@@ -2,25 +2,26 @@
 from werkzeug.security import generate_password_hash
 from os import urandom
 from base64 import b32encode
+from six import string_types
 import sys
 import getpass
 
 if "--help" in sys.argv:
-    print "create_config.py:"
-    print "Options:"
-    print "  * --fresh"
-    print "    Over-write existing config if it exists"
-    print "  * --update"
-    print "    Update existing config (Default if the config exists)"
-    print "  * --changepass"
-    print "    Change the admin password"
+    print("create_config.py:")
+    print("Options:")
+    print("  * --fresh")
+    print("    Over-write existing config if it exists")
+    print("  * --update")
+    print("    Update existing config (Default if the config exists)")
+    print("  * --changepass")
+    print("    Change the admin password")
     sys.exit(1)
 
 try:
     import settings
     if not "--fresh" in sys.argv and not "--changepass" in sys.argv:
         sys.argv.append("--update")
-        print "Updating. Use --fresh to over-write existing config"
+        print("Updating. Use --fresh to over-write existing config")
 except (ImportError, SyntaxError):
     settings = None
 
@@ -36,11 +37,23 @@ def input_with_default(*args, **kwargs):
         try:
             return name, _type(res)
         except ValueError:
-            print "Error: Value %s is not the correct type. Please re-enter" % res
+            print("Error: Value %s is not the correct type. Please re-enter" % (res))
             return input_with_default(*args, _type=_type, **kwargs)
 
+def _default_input_func(*args, **kwargs):
+    """
+    Check wether we can use `input()` from python3.
+    If not, fallback to `raw_input()`.
+    """
+    func = None	
+    try:
+        func = input(*args, **kwargs)
+    except NameError:
+        func = raw_input(*args, **kwargs)
 
-def _input_with_default(name, prompt, default, func=lambda v: v, _input_func=raw_input):
+    return func
+
+def _input_with_default(name, prompt, default, func=lambda v: v, _input_func=_default_input_func):
     """ Small wrapper around raw_input for prompting and defaulting """
     if ("--update" in sys.argv or ("--changepass" in sys.argv and name != "ADMIN_PASSWORD")) and settings is not None:
         # We are updating. If the name already exists in the settings object
@@ -66,7 +79,7 @@ def input_password(*args, **kwargs):
     return name, generate_password_hash(response)
 
 
-print "%s a Simple config file. Please answer some questions:" % ("Updating" if "--update" in sys.argv else "Generating")
+print("%s a Simple config file. Please answer some questions:" % ("Updating" if "--update" in sys.argv else "Generating"))
 SETTINGS = (
     input_with_default("POSTS_PER_PAGE", "Posts per page", 5, _type=int),
     input_with_default("POST_CONTENT_ON_HOMEPAGE", "Show the post content on the homepage",
@@ -91,9 +104,9 @@ def input_password(*args, **kwargs):
 with open("settings.py", "w") as fd:
     fd.write("# -*- coding: utf-8 -*-\n")
     for name, value in SETTINGS:
-        if isinstance(value, basestring):
+        if isinstance(value, string_types):
             value = "'%s'" % value.replace("'", "\\'")
         fd.write("%s = %s\n" % (name, value))
     fd.flush()
 
-print "Created!"
+print("Created!")
diff --git a/requirements.txt b/requirements.txt
index 3de8654..ae721ca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,10 @@
-Flask==0.10.1
-Flask-SQLAlchemy==1.0
-Jinja2==2.7.1
-Markdown==2.3.1
-MarkupSafe==0.18
-Pygments==1.6
-SQLAlchemy==0.8.2
-Werkzeug==0.9.4
-itsdangerous==0.23
+Flask==0.10.1
+Flask-SQLAlchemy==1.0
+Jinja2==2.7.1
+Markdown==2.3.1
+MarkupSafe==0.18
+Pygments==1.6
+SQLAlchemy==0.8.2
+Werkzeug==0.9.4
+itsdangerous==0.23
+six==1.7.3
diff --git a/simple-debug.py b/simple-debug.py
index 97fb7f6..7cce1cd 100644
--- a/simple-debug.py
+++ b/simple-debug.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python
 import simple
 simple.app.debug = True
 simple.app.run()
diff --git a/simple.py b/simple.py
index cf2946e..63b3010 100644
--- a/simple.py
+++ b/simple.py
@@ -10,6 +10,7 @@
 from os import urandom
 from base64 import b32encode
 from email import utils
+from six import u as unicode
 # web stuff and markdown imports
 import markdown
 from flask.ext.sqlalchemy import SQLAlchemy
@@ -42,9 +43,9 @@
 cache_directory = os.path.dirname(__file__)
 try:
     cache = FileSystemCache(os.path.join(cache_directory, "cache"))
-except Exception, e:
-    print "Could not create cache folder, caching will be disabled."
-    print "Error: %s" % e
+except Exception as e:
+    print("Could not create cache folder, caching will be disabled.")
+    print("Error: %s" % (e))
     cache = NullCache()
 
 _punct_re = re.compile(r'[\t !"#$%&\'()*\-/<=>?@\[\\\]^_`{|},.]+')
@@ -306,11 +307,11 @@ def allowed_file(filename):
 def upload_file():
     if request.method == 'POST':
         file_upload = request.files['file']
-        if file and allowed_file(file_upload.filename):
+        if file_upload and allowed_file(file_upload.filename):
             filename = secure_filename(file_upload.filename)
             key = b32encode(urandom(5))
             filename, extension = os.path.splitext(filename)
-            filename = filename + '_' + key + extension
+            filename = filename + '_' + str(key) + extension
             file_upload.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
             url = url_for('uploaded_file', filename=filename)
             return json.dumps({'status': 'ok', 'url': url, 'name': filename})