diff --git a/bootstrap.py b/bootstrap.py
index 5f2cb08..c2ac08f 100755
--- a/bootstrap.py
+++ b/bootstrap.py
@@ -36,9 +36,9 @@ def quote(c):
      'try:\n'
      '    import ConfigParser\n'
      'except ImportError:\n'
-     '    print 1\n'
+     '    print(1)\n'
      'else:\n'
-     '    print 0\n'],
+     '    print(0)\n'],
     stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
 has_broken_dash_S = bool(int(stdout.strip()))
 
diff --git a/docs/fields.txt b/docs/fields.txt
index 50d97b9..ff55a3e 100644
--- a/docs/fields.txt
+++ b/docs/fields.txt
@@ -55,12 +55,12 @@ Render a string field::
 
 Edit mode::
 
-    >>> print fs.text.render()
+    >>> print(fs.text.render())
     <input id="One--text" name="One--text" type="text" value="a value" />
 
 Read only mode::
 
-    >>> print fs.text.render_readonly()
+    >>> print(fs.text.render_readonly())
     a value
 
 IntegerFieldRenderer
@@ -82,12 +82,12 @@ Render a string field::
 
 Edit mode::
 
-    >>> print fs.passwd.render()
+    >>> print(fs.passwd.render())
     <input id="One--passwd" name="One--passwd" type="password" />
 
 Read only mode::
 
-    >>> print fs.passwd.render_readonly()
+    >>> print(fs.passwd.render_readonly())
     ******
 
 TextAreaFieldRenderer
@@ -103,12 +103,12 @@ Render a string field::
 
 Edit mode::
 
-    >>> print fs.text.render()
+    >>> print(fs.text.render())
     <textarea id="One--text" name="One--text">a value</textarea>
 
 Read only mode::
 
-    >>> print fs.text.render_readonly()
+    >>> print(fs.text.render_readonly())
     a value
 
 HiddenFieldRenderer
@@ -124,12 +124,12 @@ Render a string field::
 
 Edit mode::
 
-    >>> print fs.render()
+    >>> print(fs.render())
     <input id="One--text" name="One--text" type="hidden" value="h" />
 
 Read only mode::
 
-    >>> print fs.text.render_readonly()
+    >>> print(fs.text.render_readonly())
     <BLANKLINE>
 
 HiddenFieldRendererFactory
@@ -163,7 +163,7 @@ Render a date field::
 
 Edit mode::
 
-    >>> print pretty_html(fs.date.render())  #doctest: +ELLIPSIS
+    >>> print(pretty_html(fs.date.render()))  #doctest: +ELLIPSIS
     <span id="One--date">
      <select id="One--date__month" name="One--date__month">
       <option value="MM">
@@ -194,7 +194,7 @@ Edit mode::
 
 Read only mode::
 
-    >>> print fs.date.render_readonly()
+    >>> print(fs.date.render_readonly())
     2000-12-31
 
 TimeFieldRenderer
@@ -211,7 +211,7 @@ Render a time field::
 
 Edit mode::
 
-    >>> print pretty_html(fs.time.render())  #doctest: +ELLIPSIS
+    >>> print(pretty_html(fs.time.render()))  #doctest: +ELLIPSIS
     <span id="One--time">
      <select id="One--time__hour" name="One--time__hour">
       <option value="HH">
@@ -267,7 +267,7 @@ Edit mode::
 
 Read only mode::
 
-    >>> print fs.time.render_readonly()
+    >>> print(fs.time.render_readonly())
     09:03:30
 
 DateTimeFieldRenderer
@@ -284,7 +284,7 @@ Render a datetime field::
 
 Edit mode::
 
-    >>> print pretty_html(fs.datetime.render())  #doctest: +ELLIPSIS
+    >>> print(pretty_html(fs.datetime.render()))  #doctest: +ELLIPSIS
     <span id="One--datetime">
      <select id="One--datetime__month" name="One--datetime__month">
       <option value="MM">
@@ -341,7 +341,7 @@ Edit mode::
 
 Read only mode::
 
-    >>> print fs.datetime.render_readonly()
+    >>> print(fs.datetime.render_readonly())
     2000-12-31 09:03:30
 
 HiddenDateFieldRenderer
@@ -472,7 +472,7 @@ Then bind it to a specific field::
 
 Here is the result for edit mode::
 
-  >>> print fs.render()
+  >>> print(fs.render())
   <div>
    <label class="field_opt" for="One--link">
     Link
@@ -489,7 +489,7 @@ Here is the result for edit mode::
 And for read only mode::
 
   >>> fs.readonly = True
-  >>> print fs.render()
+  >>> print(fs.render())
   <tbody>
    <tr>
     <td class="field_readonly">
diff --git a/docs/forms.txt b/docs/forms.txt
index 2ebeac5..24169ee 100644
--- a/docs/forms.txt
+++ b/docs/forms.txt
@@ -46,7 +46,7 @@ itself appropriately.
 :class:`~formalchemy.forms.FieldSet`::
 
   >>> fs = FieldSet(bill)
-  >>> print fs.name.value
+  >>> print(fs.name.value)
   Bill
 
 If you have an attribute name that conflicts with a built-in
@@ -146,7 +146,7 @@ Here is a callable exemple::
   ...     return fs.session.query(User).filter(User.name=='Bill')
   >>> fs3 = FieldSet(bill)
   >>> fs3.configure(options=[fs3.name.dropdown(options=custom_query)])
-  >>> print fs3.name.render()
+  >>> print(fs3.name.render())
   <select id="User-1-name" name="User-1-name">
   <option value="">None</option>
   <option value="1">Bill</option>
@@ -230,7 +230,7 @@ just call the `render` method to get an HTML string suitable for
 including in your page::
 
     >>> fs = FieldSet(bill)
-    >>> print fs.render() 
+    >>> print(fs.render())
     <div>
      <label class="field_req" for="User-1-email">
       Email
@@ -276,7 +276,7 @@ Note that there is no `form` element!  You must provide that yourself.
 You can also render individual fields for more fine-grained control::
 
   >>> fs = FieldSet(bill)
-  >>> print fs.name.render()
+  >>> print(fs.name.render())
   <input id="User-1-name" maxlength="30" name="User-1-name" type="text" value="Bill" />
 
 
diff --git a/docs/tables.txt b/docs/tables.txt
index bf0a4f3..4062019 100644
--- a/docs/tables.txt
+++ b/docs/tables.txt
@@ -78,7 +78,7 @@ Then you can initialize a `Grid` and bind it to a list of row instance::
 
 This will render instances as an html table::
 
-  >>> print tc.render()
+  >>> print(tc.render())
   <thead>
    <tr>
     <th>
@@ -118,7 +118,7 @@ You can also add a field to the `Grid` manually::
   >>> tc2 = Grid(User, [bill, john])
   >>> tc2.append(Field('link', type=types.String, value=lambda item: literal('<a href=%d>link</a>') % item.id))
   >>> tc2.configure(readonly=True)
-  >>> print tc2.render()
+  >>> print(tc2.render())
   <thead>
    <tr>
     <th>
diff --git a/docs/templates.txt b/docs/templates.txt
index abbdaf1..bc804c3 100644
--- a/docs/templates.txt
+++ b/docs/templates.txt
@@ -66,7 +66,7 @@ Then you can override the default mako templates::
 
 And see the result::
 
-  >>> print FieldSet(User).render()
+  >>> print(FieldSet(User).render())
   <ul>
   <li>email</li>
   <li>password</li>
@@ -87,7 +87,7 @@ Same with genshi except that :mod:`formalchemy` don't provide default templates:
 
 And same the result of course::
 
-  >>> print FieldSet(User).render()
+  >>> print(FieldSet(User).render())
   <ul>
   <li>email</li><li>password</li><li>name</li><li>orders</li>
   </ul>
@@ -105,7 +105,7 @@ You can use it for a specific :class:`~formalchemy.forms.FieldSet`::
 
   >>> fs = FieldSet(User)
   >>> fs.engine = MyEngine()
-  >>> print fs.render()
+  >>> print(fs.render())
   It works !
 
 You can also override the engine in a subclass::
@@ -120,7 +120,7 @@ Or set it as the global engine with :mod:`formalchemy`'s :mod:`~formalchemy.conf
 
 It should be available for all :class:`~formalchemy.forms.FieldSet`::
 
-  >>> print FieldSet(User).render()
+  >>> print(FieldSet(User).render())
   It works !
 
 .. restore config
diff --git a/docs/validators.txt b/docs/validators.txt
index 5202bd8..a8fb589 100644
--- a/docs/validators.txt
+++ b/docs/validators.txt
@@ -49,7 +49,7 @@ a class instead of an object, the class will be instantiated for you.)
 The object will be placed into the current session, if one exists::
 
   >>> if fs.validate(): fs.sync()
-  >>> print bill.name
+  >>> print(bill.name)
   Sam
 
 
diff --git a/formalchemy/ext/couchdb.py b/formalchemy/ext/couchdb.py
index 3473881..d9622cf 100644
--- a/formalchemy/ext/couchdb.py
+++ b/formalchemy/ext/couchdb.py
@@ -41,7 +41,7 @@
     >>> # rendering
     >>> fs.name.is_required()
     True
-    >>> print fs.render() # doctest: +ELLIPSIS +NORMALIZE_WHITESPACE
+    >>> print(fs.render()) # doctest: +ELLIPSIS +NORMALIZE_WHITESPACE
     <div>
       <label class="field_req" for="Pet--name">Name</label>
       <input id="Pet--name" name="Pet--name" type="text" value="dewey" />
@@ -68,7 +68,7 @@
     >>> # grid
     >>> grid = couchdb.Grid(Pet, [p, Pet()])
     >>> grid.configure(include=[grid.name, grid.type, grid.birthdate, grid.weight_in_pounds, grid.friends])
-    >>> print grid.render() # doctest: +SKIP +ELLIPSIS +NORMALIZE_WHITESPACE
+    >>> print(grid.render()) # doctest: +SKIP +ELLIPSIS +NORMALIZE_WHITESPACE
     <thead>
       <tr>
           <th>Name</th>
diff --git a/formalchemy/ext/fsblob.py b/formalchemy/ext/fsblob.py
index 440b395..0baa6aa 100644
--- a/formalchemy/ext/fsblob.py
+++ b/formalchemy/ext/fsblob.py
@@ -35,10 +35,10 @@ def image_extension(extensions=['jpeg', 'jpg', 'gif', 'png']):
 
 def normalized_basename(path):
     """
-    >>> print normalized_basename(u'c:\\Prog files\My fil\xe9.jpg')
+    >>> print(normalized_basename(u'c:\\Prog files\My fil\xe9.jpg'))
     My_fil.jpg
 
-    >>> print normalized_basename('c:\\Prog files\My fil\xc3\xa9.jpg')
+    >>> print(normalized_basename('c:\\Prog files\My fil\xc3\xa9.jpg'))
     My_fil.jpg
 
     """
diff --git a/formalchemy/ext/rdf.py b/formalchemy/ext/rdf.py
index fa4ed3b..f2e8788 100644
--- a/formalchemy/ext/rdf.py
+++ b/formalchemy/ext/rdf.py
@@ -18,7 +18,7 @@
     >>> fs.stock.value
     ['value1']
 
-    >>> print fs.render().strip() # doctest: +ELLIPSIS +NORMALIZE_WHITESPACE
+    >>> print(fs.render().strip()) # doctest: +ELLIPSIS +NORMALIZE_WHITESPACE
     <div>
       <label class="field_opt" for="Company--stockDescription">Stockdescription</label>
       <input id="Company--stockDescription" name="Company--stockDescription" type="text" value="description" />
@@ -35,7 +35,7 @@
 
     >>> fs = Grid(Company, [c])
     >>> fs.configure(options=[fs.stock.set(options=['value1', 'value2'])], readonly=True)
-    >>> print fs.render().strip() #doctest: +NORMALIZE_WHITESPACE
+    >>> print(fs.render().strip()) #doctest: +NORMALIZE_WHITESPACE
     <thead>
       <tr>
           <th>Stockdescription</th>
diff --git a/formalchemy/ext/zope/__init__.py b/formalchemy/ext/zope/__init__.py
index 9ff41cf..1a7a6b2 100644
--- a/formalchemy/ext/zope/__init__.py
+++ b/formalchemy/ext/zope/__init__.py
@@ -45,7 +45,7 @@
 
 We can use the form::
 
-    >>> print fs.render().strip() #doctest: +ELLIPSIS +NORMALIZE_WHITESPACE
+    >>> print(fs.render().strip()) #doctest: +ELLIPSIS +NORMALIZE_WHITESPACE
     <div>
       <label class="field_req" for="Pet--name">Name</label>
       <textarea id="Pet--name" name="Pet--name">dewey</textarea>
@@ -133,7 +133,7 @@
 
     >>> grid = Grid(IPet)
     >>> grid = grid.bind([p])
-    >>> print grid.render().strip() #doctest: +ELLIPSIS
+    >>> print(grid.render().strip()) #doctest: +ELLIPSIS
     <thead>
       <tr>
           <th>Name</th>
diff --git a/formalchemy/fields.py b/formalchemy/fields.py
index b0c304a..ca53e7d 100644
--- a/formalchemy/fields.py
+++ b/formalchemy/fields.py
@@ -1704,10 +1704,10 @@ def __init__(self, instrumented_attribute, parent):
         """
             >>> from formalchemy.tests import FieldSet, Order
             >>> fs = FieldSet(Order)
-            >>> print fs.user.key
+            >>> print(fs.user.key)
             user
 
-            >>> print fs.user.name
+            >>> print(fs.user.name)
             user_id
         """
         AbstractField.__init__(self, parent)
diff --git a/formalchemy/helpers.py b/formalchemy/helpers.py
index acd1ae5..7946de9 100644
--- a/formalchemy/helpers.py
+++ b/formalchemy/helpers.py
@@ -33,9 +33,9 @@ def content_tag(name, content, **options):
 
     Examples::
 
-        >>> print content_tag("p", "Hello world!")
+        >>> print(content_tag("p", "Hello world!"))
         <p>Hello world!</p>
-        >>> print content_tag("div", content_tag("p", "Hello world!"), class_="strong")
+        >>> print(content_tag("div", content_tag("p", "Hello world!"), class_="strong"))
         <div class="strong"><p>Hello world!</p></div>
     """
     if content is None:
@@ -79,7 +79,7 @@ def text_area(name, content='', **options):
 
     Example::
 
-        >>> print text_area("Body", '', size="25x10")
+        >>> print(text_area("Body", '', size="25x10"))
         <textarea cols="25" id="Body" name="Body" rows="10"></textarea>
     """
     _update_fa(options, name)
@@ -114,7 +114,7 @@ def file_field(name, value=None, **options):
 
     Example::
 
-        >>> print file_field('myfile')
+        >>> print(file_field('myfile'))
         <input id="myfile" name="myfile" type="file" />
     """
     _update_fa(options, name)
@@ -137,13 +137,13 @@ def tag(name, open=False, **options):
 
     Examples::
 
-        >>> print tag("br")
+        >>> print(tag("br"))
         <br />
-        >>> print tag("br", True)
+        >>> print(tag("br", True))
         <br>
-        >>> print tag("input", type="text")
+        >>> print(tag("input", type="text"))
         <input type="text" />
-        >>> print tag("input", type='text', disabled='disabled')
+        >>> print(tag("input", type='text', disabled='disabled'))
         <input disabled="disabled" type="text" />
     """
     return HTML.tag(name, _closed=not open, **options)
@@ -152,7 +152,7 @@ def label(value, **kwargs):
     """
     Return a label tag
 
-        >>> print label('My label', for_='fieldname')
+        >>> print(label('My label', for_='fieldname'))
         <label for="fieldname">My label</label>
 
     """
diff --git a/formalchemy/tests/__init__.py b/formalchemy/tests/__init__.py
index dc2d11e..dc18014 100644
--- a/formalchemy/tests/__init__.py
+++ b/formalchemy/tests/__init__.py
@@ -38,13 +38,13 @@ def ls(*args):
     files.sort()
     for f in files:
         if os.path.isdir(f):
-            print 'D %s' % os.path.basename(f)
+            print('D %s' % os.path.basename(f))
         else:
-            print '- %s' % os.path.basename(f)
+            print('- %s' % os.path.basename(f))
 
 def cat(*args):
     filename = os.path.join(os.path.dirname(__file__), *args)
-    print open(filename).read()
+    print(open(filename).read())
 
 def session_mapper(scoped_session):
     def mapper(cls, *arg, **kw):
diff --git a/formalchemy/tests/test_aliases.py b/formalchemy/tests/test_aliases.py
index ce87af0..ad5556a 100644
--- a/formalchemy/tests/test_aliases.py
+++ b/formalchemy/tests/test_aliases.py
@@ -12,7 +12,7 @@ def test_render_aliases():
     >>> alias = session.query(Aliases).first()
     >>> alias
     >>> fs = FieldSet(Aliases)
-    >>> print fs.render()
+    >>> print(fs.render())
     <div>
      <label class="field_opt" for="Aliases--text">
       Text
diff --git a/formalchemy/tests/test_binary.py b/formalchemy/tests/test_binary.py
index 66a10ce..2e598f1 100644
--- a/formalchemy/tests/test_binary.py
+++ b/formalchemy/tests/test_binary.py
@@ -73,7 +73,7 @@ def test_binary():
 
     At creation time only the input field is rendered
 
-        >>> print fs.render()
+        >>> print(fs.render())
         <div>
          <label class="field_opt" for="Three--bar">
           Bar
@@ -89,7 +89,7 @@ def test_binary():
     If the field has a value then we add a check box to remove it
 
         >>> record.bar = '/path/to/file'
-        >>> print fs.render()
+        >>> print(fs.render())
         <div>
          <label class="field_opt" for="Three--bar">
           Bar
@@ -115,7 +115,7 @@ def test_binary():
 
     The field value does not change
 
-        >>> print record.bar
+        >>> print(record.bar)
         /path/to/file
 
     Try to remove it by checking the checkbox
@@ -127,7 +127,7 @@ def test_binary():
 
     The field value is removed
 
-        >>> print record.bar
+        >>> print(record.bar)
         <BLANKLINE>
 
     Also check that this work with cgi.FieldStorage
@@ -138,7 +138,7 @@ def test_binary():
     We need test data
 
         >>> data = get_fields(TEST_DATA)
-        >>> print data.getone('Binaries--file')
+        >>> print(data.getone('Binaries--file'))
         FieldStorage('Binaries--file', 'test.js')
 
         >>> fs.rebind(data=data)
@@ -146,7 +146,7 @@ def test_binary():
 
     We get the file, yeah.
 
-        >>> print record.file
+        >>> print(record.file)
         var test = null;
         <BLANKLINE>
 
@@ -158,7 +158,7 @@ def test_binary():
 
     The field value dos not change
 
-        >>> print record.file
+        >>> print(record.file)
         var test = null;
         <BLANKLINE>
 
@@ -170,21 +170,21 @@ def test_binary():
 
     The field value is now empty
 
-        >>> print record.file
+        >>> print(record.file)
         <BLANKLINE>
 
     See what append in read only mode
 
         >>> record.file = 'e'*1000
-        >>> print fs.file.render_readonly()
+        >>> print(fs.file.render_readonly())
         1 KB
 
         >>> record.file = 'e'*1000*1024
-        >>> print fs.file.render_readonly()
+        >>> print(fs.file.render_readonly())
         1000.00 KB
 
         >>> record.file = 'e'*2*1024*1024
-        >>> print fs.file.render_readonly()
+        >>> print(fs.file.render_readonly())
         2.00 MB
 
     """
diff --git a/formalchemy/tests/test_column.py b/formalchemy/tests/test_column.py
index c1eac0e..d3b31a6 100644
--- a/formalchemy/tests/test_column.py
+++ b/formalchemy/tests/test_column.py
@@ -11,18 +11,18 @@ def test_label():
     >>> Label.__table__.c.label.info
     {'label': 'My label'}
     >>> fs = FieldSet(Label)
-    >>> print fs.label.label_text
+    >>> print(fs.label.label_text)
     My label
-    >>> print fs.label.label()
+    >>> print(fs.label.label())
     My label
     """
 
 def test_fk_label(self):
     """
     >>> fs = FieldSet(Order)
-    >>> print fs.user.label_text
+    >>> print(fs.user.label_text)
     User
-    >>> print fs.user.label()
+    >>> print(fs.user.label())
     User
     """
 
diff --git a/formalchemy/tests/test_dates.py b/formalchemy/tests/test_dates.py
index 703dc38..7743a66 100644
--- a/formalchemy/tests/test_dates.py
+++ b/formalchemy/tests/test_dates.py
@@ -32,7 +32,7 @@ def test_dt_hang_up():
     >>> fs.validate()
     False
 
-    >>> print pretty_html(fs.td.render()) #doctest: +ELLIPSIS
+    >>> print(pretty_html(fs.td.render())) #doctest: +ELLIPSIS
     <span id="MyClass--td">
      <select id="MyClass--td__month" name="MyClass--td__month">
       ...
@@ -93,19 +93,19 @@ def test_hidden():
     """
     >>> fs = FieldSet(Dt)
     >>> _ = fs.foo.set(hidden=True)
-    >>> print pretty_html(fs.foo.render()) #doctest: +ELLIPSIS
+    >>> print(pretty_html(fs.foo.render())) #doctest: +ELLIPSIS
     <div style="display:none;">
      <span id="Dt--foo">
     ...
 
     >>> _ = fs.bar.set(hidden=True)
-    >>> print pretty_html(fs.bar.render()) #doctest: +ELLIPSIS
+    >>> print(pretty_html(fs.bar.render())) #doctest: +ELLIPSIS
     <div style="display:none;">
      <span id="Dt--bar">
     ...
 
     >>> _ = fs.foobar.set(hidden=True)
-    >>> print pretty_html(fs.foobar.render()) #doctest: +ELLIPSIS
+    >>> print(pretty_html(fs.foobar.render())) #doctest: +ELLIPSIS
     <div style="display:none;">
      <span id="Dt--foobar">
     ...
@@ -116,7 +116,7 @@ def test_hidden():
 __doc__ = r"""
 >>> fs = FieldSet(Dt)
 >>> fs.configure(options=[fs.foobar.with_renderer(DateTimeFieldRendererFr)])
->>> print pretty_html(fs.foobar.with_html(lang='fr').render()) #doctest: +ELLIPSIS
+>>> print(pretty_html(fs.foobar.with_html(lang='fr').render())) #doctest: +ELLIPSIS
 <span id="Dt--foobar">
  <select id="Dt--foobar__day" lang="fr" name="Dt--foobar__day">
   <option selected="selected" value="DD">
@@ -133,7 +133,7 @@ def test_hidden():
 ...
 
 >>> fs = FieldSet(Dt)
->>> print pretty_html(fs.foobar.render()) #doctest: +ELLIPSIS
+>>> print(pretty_html(fs.foobar.render())) #doctest: +ELLIPSIS
 <span id="Dt--foobar">
  <select id="Dt--foobar__month" name="Dt--foobar__month">
   <option selected="selected" value="MM">
@@ -173,7 +173,7 @@ def test_hidden():
 >>> fs = FieldSet(Dt)
 >>> dt = fs.model
 >>> dt.foo = datetime.date(2008, 6, 3);  dt.bar=datetime.time(14, 16, 18);  dt.foobar=datetime.datetime(2008, 6, 3, 14, 16, 18)
->>> print pretty_html(fs.foo.render()) #doctest: +ELLIPSIS
+>>> print(pretty_html(fs.foo.render())) #doctest: +ELLIPSIS
 <span id="Dt--foo">
  <select id="Dt--foo__month" name="Dt--foo__month">
   <option value="MM">
@@ -201,7 +201,7 @@ def test_hidden():
  <input id="Dt--foo__year" maxlength="4" name="Dt--foo__year" size="4" type="text" value="2008" />
 </span>
 
->>> print pretty_html(fs.bar.render()) #doctest: +ELLIPSIS
+>>> print(pretty_html(fs.bar.render())) #doctest: +ELLIPSIS
 <span id="Dt--bar">
  <select id="Dt--bar__hour" name="Dt--bar__hour">
   <option value="HH">
@@ -270,7 +270,7 @@ def test_hidden():
  </select>
 </span>
 
->>> print pretty_html(fs.foobar.render()) #doctest: +ELLIPSIS
+>>> print(pretty_html(fs.foobar.render())) #doctest: +ELLIPSIS
 <span id="Dt--foobar">
  <select id="Dt--foobar__month" name="Dt--foobar__month">
   <option value="MM">
@@ -328,7 +328,7 @@ def test_hidden():
 </span>
 
 >>> fs.rebind(dt, data={'Dt--foo__day': 'DD', 'Dt--foo__month': '2', 'Dt--foo__year': '', 'Dt--bar__hour': 'HH', 'Dt--bar__minute': '6', 'Dt--bar__second': '8'})
->>> print pretty_html(fs.foo.render()) #doctest: +ELLIPSIS
+>>> print(pretty_html(fs.foo.render())) #doctest: +ELLIPSIS
 <span id="Dt--foo">
  <select id="Dt--foo__month" name="Dt--foo__month">
   <option value="MM">
@@ -356,7 +356,7 @@ def test_hidden():
  </select>
  <input id="Dt--foo__year" maxlength="4" name="Dt--foo__year" size="4" type="text" value="" />
 </span>
->>> print pretty_html(fs.bar.render()) #doctest: +ELLIPSIS
+>>> print(pretty_html(fs.bar.render())) #doctest: +ELLIPSIS
 <span id="Dt--bar">
  <select id="Dt--bar__hour" name="Dt--bar__hour">
   <option value="HH">
@@ -434,17 +434,17 @@ def test_hidden():
 
 >>> fs.rebind(dt)
 >>> dt.bar = datetime.time(0)
->>> print fs.bar.render() #doctest: +ELLIPSIS
+>>> print(fs.bar.render()) #doctest: +ELLIPSIS
 <span id="Dt--bar"><select id="Dt--bar__hour" name="Dt--bar__hour">
 <option value="HH">HH</option>
 <option selected="selected" value="0">0</option>
 ...
 
->>> print fs.bar.render_readonly()
+>>> print(fs.bar.render_readonly())
 00:00:00
 
 >>> fs = FieldSet(Dt)
->>> print fs.bar.render() #doctest: +ELLIPSIS
+>>> print(fs.bar.render()) #doctest: +ELLIPSIS
 <span id="Dt--bar"><select id="Dt--bar__hour" name="Dt--bar__hour">
 <option selected="selected" value="HH">HH</option>
 <option value="0">0</option>
diff --git a/formalchemy/tests/test_fieldset.py b/formalchemy/tests/test_fieldset.py
index 0131d59..28edbe1 100644
--- a/formalchemy/tests/test_fieldset.py
+++ b/formalchemy/tests/test_fieldset.py
@@ -36,7 +36,7 @@
 >>> fs.configure(pk=True, focus=None)
 >>> fs.id.is_required()
 True
->>> print fs.render()
+>>> print(fs.render())
 <div>
  <label class="field_req" for="One--id">
   Id
@@ -50,7 +50,7 @@
 >>> fs.configure(pk=True)
 >>> fs
 <FieldSet (configured) with ['id', 'foo']>
->>> print fs.render()
+>>> print(fs.render())
 <div>
  <label class="field_req" for="Two--id">
   Id
@@ -70,7 +70,7 @@
 </div>
 
 >>> fs = FieldSet(Two)
->>> print fs.render()
+>>> print(fs.render())
 <div>
  <label class="field_opt" for="Two--foo">
   Foo
@@ -85,7 +85,7 @@
 
 >>> fs = FieldSet(Two)
 >>> fs.configure(options=[fs.foo.label('A custom label')])
->>> print fs.render()
+>>> print(fs.render())
 <div>
  <label class="field_opt" for="Two--foo">
   A custom label
@@ -98,7 +98,7 @@
 //]]>
 </script>
 >>> fs.configure(options=[fs.foo.label('')])
->>> print fs.render()
+>>> print(fs.render())
 <div>
  <label class="field_opt" for="Two--foo">
  </label>
@@ -116,12 +116,12 @@
 
 >>> fs = FieldSet(Two)
 >>> fs.configure(include=[fs.foo.hidden()])
->>> print fs.render()
+>>> print(fs.render())
 <input id="Two--foo" name="Two--foo" type="hidden" value="133" />
 
 >>> fs = FieldSet(Two)
 >>> fs.configure(include=[fs.foo.dropdown([('option1', 'value1'), ('option2', 'value2')])])
->>> print fs.render()
+>>> print(fs.render())
 <div>
  <label class="field_opt" for="Two--foo">
   Foo
@@ -143,7 +143,7 @@
 
 >>> fs = FieldSet(Two)
 >>> assert configure_and_render(fs, include=[fs.foo.dropdown([('option1', 'value1'), ('option2', 'value2')])]) == configure_and_render(fs, options=[fs.foo.dropdown([('option1', 'value1'), ('option2', 'value2')])]) 
->>> print pretty_html(fs.foo.with_html(onblur='test()').render())
+>>> print(pretty_html(fs.foo.with_html(onblur='test()').render()))
 <select id="Two--foo" name="Two--foo" onblur="test()">
  <option value="value1">
   option1
@@ -152,13 +152,13 @@
   option2
  </option>
 </select>
->>> print fs.foo.reset().with_html(onblur='test').render()
+>>> print(fs.foo.reset().with_html(onblur='test').render())
 <input id="Two--foo" name="Two--foo" onblur="test" type="text" value="133" />
 
 # Test with_metadata()
 >>> fs = FieldSet(Three)
 >>> fs.configure(include=[fs.foo.with_metadata(instructions=u'Answer well')])
->>> print fs.render()
+>>> print(fs.render())
 <div>
  <label class="field_opt" for="Three--foo">
   Foo
@@ -175,20 +175,20 @@
 </script>
 
 # test sync
->>> print session.query(One).count()
+>>> print(session.query(One).count())
 0
 >>> fs_1 = FieldSet(One, data={}, session=session)
 >>> fs_1.sync()
 >>> session.flush()
->>> print session.query(One).count()
+>>> print(session.query(One).count())
 1
 >>> session.rollback()
 
 >>> twof = TwoFloat(id=1, foo=32.2)
 >>> fs_twof = FieldSet(twof)
->>> print '%.1f' % fs_twof.foo.value
+>>> print('%.1f' % fs_twof.foo.value)
 32.2
->>> print pretty_html(fs_twof.foo.render())
+>>> print(pretty_html(fs_twof.foo.render()))
 <input id="TwoFloat-1-foo" name="TwoFloat-1-foo" type="text" value="32.2" />
 
 >>> import datetime
@@ -198,7 +198,7 @@
 <IntervalFieldRenderer for AttributeField(foo)>
 >>> fs_twoi.foo.value
 datetime.timedelta(2, 17280)
->>> print pretty_html(fs_twoi.foo.render())
+>>> print(pretty_html(fs_twoi.foo.render()))
 <input id="TwoInterval-1-foo" name="TwoInterval-1-foo" type="text" value="2.17280" />
 >>> fs_twoi.rebind(data={"TwoInterval-1-foo": "3.1"})
 >>> fs_twoi.sync()
@@ -210,7 +210,7 @@
 # http://code.google.com/p/formalchemy/issues/detail?id=41
 >>> twon = TwoNumeric(id=1, foo=Decimal('2.3'))
 >>> fs_twon = FieldSet(twon)
->>> print pretty_html(fs_twon.foo.render())
+>>> print(pretty_html(fs_twon.foo.render()))
 <input id="TwoNumeric-1-foo" name="TwoNumeric-1-foo" type="text" value="2.3" />
 >>> fs_twon.rebind(data={"TwoNumeric-1-foo": "6.7"})
 >>> fs_twon.sync()
@@ -228,7 +228,7 @@
 >>> fs_cb = FieldSet(CheckBox)
 >>> fs_cb.field.value is None
 True
->>> print pretty_html(fs_cb.field.dropdown().render())
+>>> print(pretty_html(fs_cb.field.dropdown().render()))
 <select id="CheckBox--field" name="CheckBox--field">
  <option value="True">
   Yes
@@ -246,13 +246,13 @@
 False
 >>> fs_cb.field.renderer.value is None
 True
->>> print fs_cb.field.render()
+>>> print(fs_cb.field.render())
 <input id="CheckBox--field" name="CheckBox--field" type="checkbox" value="True" />
 >>> fs_cb.field.renderer #doctest: +ELLIPSIS
 <CheckBoxFieldRenderer for AttributeField(field)>
 >>> fs_cb.field.renderer._serialized_value() is None
 True
->>> print pretty_html(fs_cb.field.radio().render())
+>>> print(pretty_html(fs_cb.field.radio().render()))
 <input id="CheckBox--field_0" name="CheckBox--field" type="radio" value="True" />
 <label for="CheckBox--field_0">
  Yes
@@ -284,7 +284,7 @@
 False
 
 >>> fs = FieldSet(Two)
->>> print pretty_html(fs.foo.dropdown(options=['one', 'two']).radio().render())
+>>> print(pretty_html(fs.foo.dropdown(options=['one', 'two']).radio().render()))
 <input id="Two--foo_0" name="Two--foo" type="radio" value="one" />
 <label for="Two--foo_0">
  one
@@ -296,14 +296,14 @@
 </label>
 
 >>> assert fs.foo.radio(options=['one', 'two']).render() == fs.foo.dropdown(options=['one', 'two']).radio().render()
->>> print fs.foo.radio(options=[('one','one'), ('two','two')]).dropdown().render()
+>>> print(fs.foo.radio(options=[('one','one'), ('two','two')]).dropdown().render())
 <select id="Two--foo" name="Two--foo">
 <option value="one">one</option>
 <option value="two">two</option>
 </select>
 
 >>> assert fs.foo.dropdown(options=[('one','one'), ('two','two')]).render() == fs.foo.radio(options=[('one','one'), ('two','two')]).dropdown().render()
->>> print pretty_html(fs.foo.dropdown(options=[('one','one'), ('two','two')], multiple=True).checkbox().render())
+>>> print(pretty_html(fs.foo.dropdown(options=[('one','one'), ('two','two')], multiple=True).checkbox().render()))
 <input id="Two--foo_0" name="Two--foo" type="checkbox" value="one" />
 <label for="Two--foo_0">
  one
@@ -315,7 +315,7 @@
 </label>
 
 >>> fs = FieldSet(User, session=session)
->>> print fs.render()
+>>> print(fs.render())
 <div>
  <label class="field_req" for="User--email">
   Email
@@ -357,7 +357,7 @@
 </div>
 
 >>> fs = FieldSet(bill)
->>> print pretty_html(fs.orders.render())
+>>> print(pretty_html(fs.orders.render()))
 <select id="User-1-orders" multiple="multiple" name="User-1-orders" size="5">
  <option value="2">
   Quantity: 5
@@ -369,7 +369,7 @@
   Quantity: 10
  </option>
 </select>
->>> print pretty_html(fs.orders.checkbox().render())
+>>> print(pretty_html(fs.orders.checkbox().render()))
 <input id="User-1-orders_0" name="User-1-orders" type="checkbox" value="2" />
 <label for="User-1-orders_0">
  Quantity: 5
@@ -385,7 +385,7 @@
  Quantity: 10
 </label>
 
->>> print fs.orders.checkbox(options=session.query(Order).filter_by(id=1)).render()
+>>> print(fs.orders.checkbox(options=session.query(Order).filter_by(id=1)).render())
 <input checked="checked" id="User-1-orders_0" name="User-1-orders" type="checkbox" value="1" /><label for="User-1-orders_0">Quantity: 10</label>
 
 >>> fs = FieldSet(bill, data={})
@@ -394,7 +394,7 @@
 True
 
 >>> fs = FieldSet(bill, data={'User-1-orders': ['2', '3']})
->>> print pretty_html(fs.orders.render())
+>>> print(pretty_html(fs.orders.render()))
 <select id="User-1-orders" multiple="multiple" name="User-1-orders" size="5">
  <option selected="selected" value="2">
   Quantity: 5
@@ -413,18 +413,18 @@
 [<Order for user 1: 10>]
 
 >>> fs = FieldSet(Two)
->>> print fs.foo.render()
+>>> print(fs.foo.render())
 <input id="Two--foo" name="Two--foo" type="text" value="133" />
 
 >>> fs = FieldSet(Two)
->>> print fs.foo.dropdown([('option1', 'value1'), ('option2', 'value2')]).render()
+>>> print(fs.foo.dropdown([('option1', 'value1'), ('option2', 'value2')]).render())
 <select id="Two--foo" name="Two--foo">
 <option value="value1">option1</option>
 <option value="value2">option2</option>
 </select>
 
 >>> fs = FieldSet(Order, session)
->>> print fs.render()
+>>> print(fs.render())
 <div>
  <label class="field_req" for="Order--quantity">
   Quantity
@@ -463,7 +463,7 @@
 10
 >>> fs.session == object_session(order1)
 True
->>> print fs.render()
+>>> print(fs.render())
 <div>
  <label class="field_req" for="Order-1-id">
   Id
@@ -492,7 +492,7 @@
 
 >>> fs = FieldSet(One)
 >>> fs.configure(pk=True)
->>> print fs.render()
+>>> print(fs.render())
 <div>
  <label class="field_req" for="One--id">
   Id
@@ -505,10 +505,10 @@
 //]]>
 </script>
 >>> fs.configure(include=[])
->>> print fs.render()
+>>> print(fs.render())
 <BLANKLINE>
 >>> fs.configure(pk=True, focus=None)
->>> print fs.render()
+>>> print(fs.render())
 <div>
  <label class="field_req" for="One--id">
   Id
@@ -529,7 +529,7 @@
 [True]
 
 >>> fs = FieldSet(OTOParent, session)
->>> print fs.render()
+>>> print(fs.render())
 <div>
  <label class="field_req" for="OTOParent--oto_child_id">
   Child
@@ -561,7 +561,7 @@
 False
 >>> fs_2.errors
 {AttributeField(foo): ['Please enter a value']}
->>> print fs_2.render()
+>>> print(fs_2.render())
 <div>
  <label class="field_req" for="Two--foo">
   Foo
@@ -578,7 +578,7 @@
 False
 >>> fs_2.errors
 {AttributeField(foo): ['Value is not an integer']}
->>> print fs_2.render()
+>>> print(fs_2.render())
 <div>
  <label class="field_req" for="Two--foo">
   Foo
@@ -599,7 +599,7 @@
 >>> fs_2.model.foo
 2
 >>> session.flush()
->>> print fs_2.render() #doctest: +ELLIPSIS
+>>> print(fs_2.render()) #doctest: +ELLIPSIS
 Traceback (most recent call last):
 ...
 PkError: Primary key of model has changed since binding, probably due to sync()ing a new instance (from None to 1)...
@@ -648,11 +648,11 @@
 >>> fs_3 = FieldSet(Three, data={'Three--foo': 'asdf', 'Three--bar': 'fdsa'})
 >>> fs_3.foo.value
 u'asdf'
->>> print fs_3.foo.textarea().render()
+>>> print(fs_3.foo.textarea().render())
 <textarea id="Three--foo" name="Three--foo">asdf</textarea>
->>> print fs_3.foo.textarea("3x4").render()
+>>> print(fs_3.foo.textarea("3x4").render())
 <textarea cols="3" id="Three--foo" name="Three--foo" rows="4">asdf</textarea>
->>> print fs_3.foo.textarea((3,4)).render()
+>>> print(fs_3.foo.textarea((3,4)).render())
 <textarea cols="3" id="Three--foo" name="Three--foo" rows="4">asdf</textarea>
 >>> fs_3.bar.value
 u'fdsa'
@@ -665,7 +665,7 @@
 False
 >>> sorted(fs_3.errors.items())
 [(None, ('foo and bar do not match',)), (AttributeField(foo), ['does not match bar'])]
->>> print fs_3.render()
+>>> print(fs_3.render())
 <div class="fieldset_error">
  foo and bar do not match
 </div>
@@ -688,12 +688,12 @@
 # custom renderer
 >>> fs_3 = FieldSet(Three, data={'Three--foo': 'http://example.com/image.png'})
 >>> fs_3.configure(include=[fs_3.foo.with_renderer(ImgRenderer)])
->>> print fs_3.foo.render()
+>>> print(fs_3.foo.render())
 <img src="http://example.com/image.png">
 
 # natural PKs
 >>> fs_npk = FieldSet(NaturalOrder, session)
->>> print fs_npk.render()
+>>> print(fs_npk.render())
 <div>
  <label class="field_req" for="NaturalOrder--quantity">
   Quantity
@@ -740,7 +740,7 @@
 # Field
 >>> fs = FieldSet(One)
 >>> fs.add(Field('foo'))
->>> print configure_and_render(fs, focus=None)
+>>> print(configure_and_render(fs, focus=None))
 <div>
  <label class="field_opt" for="One--foo">
   Foo
@@ -752,7 +752,7 @@
 >>> fs.add(Field('foo', types.Integer, value=2))
 >>> fs.foo.value
 2
->>> print configure_and_render(fs, focus=None)
+>>> print(configure_and_render(fs, focus=None))
 <div>
  <label class="field_opt" for="One--foo">
   Foo
@@ -766,7 +766,7 @@
 
 >>> fs = FieldSet(One)
 >>> fs.add(Field('foo', types.Integer, value=2).dropdown(options=[('1', 1), ('2', 2)]))
->>> print configure_and_render(fs, focus=None)
+>>> print(configure_and_render(fs, focus=None))
 <div>
  <label class="field_opt" for="One--foo">
   Foo
@@ -793,7 +793,7 @@
 
 >>> fs_1 = FieldSet(One)
 >>> fs_1.add(Field('foo', types.Integer, value=[2, 3]).dropdown(options=[('1', 1), ('2', 2), ('3', 3)], multiple=True))
->>> print configure_and_render(fs_1, focus=None)
+>>> print(configure_and_render(fs_1, focus=None))
 <div>
  <label class="field_opt" for="One--foo">
   Foo
@@ -833,7 +833,7 @@
 >>> d[types.Boolean] = BooleanSelectRenderer
 >>> fs = FieldSet(CheckBox)
 >>> fs.default_renderers = d
->>> print fs.field.render()
+>>> print(fs.field.render())
 <select id="CheckBox--field" name="CheckBox--field">
 <option value="True">Yes</option>
 <option value="False">No</option>
@@ -851,7 +851,7 @@
 >>> sorted(fs._fields.items())
 [(u'orders_id', AttributeField(orders_id)), (u'orders_quantity', AttributeField(orders_quantity)), (u'orders_user_id', AttributeField(orders_user_id)), (u'users_email', AttributeField(users_email)), (u'users_id', AttributeField(users_id)), (u'users_name', AttributeField(users_name)), (u'users_password', AttributeField(users_password))]
 >>> fs.rebind(session.query(Order__User).filter_by(orders_id=1).one())
->>> print configure_and_render(fs, focus=None)
+>>> print(configure_and_render(fs, focus=None))
 <div>
  <label class="field_req" for="Order__User-1_1-orders_quantity">
   Orders quantity
@@ -888,14 +888,14 @@
 
 >>> FieldSet.default_renderers[Point] = PointFieldRenderer
 >>> fs = FieldSet(Vertex)
->>> print pretty_html(fs.start.render())
+>>> print(pretty_html(fs.start.render()))
 <input id="Vertex--start-x" name="Vertex--start-x" type="text" value="" />
 <input id="Vertex--start-y" name="Vertex--start-y" type="text" value="" />
 >>> fs.rebind(Vertex)
 >>> v = fs.model
 >>> v.start = Point(1,2)
 >>> v.end = Point(3,4)
->>> print pretty_html(fs.start.render())
+>>> print(pretty_html(fs.start.render()))
 <input id="Vertex--start-x" name="Vertex--start-x" type="text" value="1" />
 <input id="Vertex--start-y" name="Vertex--start-y" type="text" value="2" />
 >>> fs.rebind(v)
@@ -920,7 +920,7 @@
 >>> t.configure(readonly=True)
 >>> t.readonly
 True
->>> print t.render()
+>>> print(t.render())
 <tbody>
  <tr>
   <td class="field_readonly">
@@ -958,13 +958,13 @@
 >>> session.refresh(john)
 
 >>> fs_or = FieldSet(order1)
->>> print fs_or.user.render_readonly()
+>>> print(fs_or.user.render_readonly())
 <a href="mailto:bill@example.com">Bill</a>
 
 >>> out = FieldSet(OrderUserTag, session=session)
 >>> list(str(x) for x in sorted(out._fields))
 ['id', 'order_id', 'order_user', 'tag', 'user_id']
->>> print out.order_user.name
+>>> print(out.order_user.name)
 order_user
 >>> out.order_user.is_raw_foreign_key
 False
@@ -972,7 +972,7 @@
 True
 >>> list(str(x) for x in sorted(out.render_fields))
 ['order_user', 'tag']
->>> print pretty_html(out.order_user.render())
+>>> print(pretty_html(out.order_user.render()))
 <select id="OrderUserTag--order_user" name="OrderUserTag--order_user">
  <option value="(1, 1)">
   OrderUser(1, 1)
@@ -985,7 +985,7 @@
 >>> out.validate()
 True
 >>> out.sync()
->>> print out.model.order_user
+>>> print(out.model.order_user)
 OrderUser(1, 2)
 
 >>> fs = FieldSet(Function)
@@ -1004,7 +1004,7 @@
 >>> fs_oo.configure(options=[fs_oo.user.with_null_as(('No user', ''))])
 >>> fs_oo.user._null_option
 ('No user', '')
->>> print pretty_html(fs_oo.user.render())
+>>> print(pretty_html(fs_oo.user.render()))
 <select id="OptionalOrder--user_id" name="OptionalOrder--user_id">
  <option selected="selected" value="">
   No user
@@ -1065,7 +1065,7 @@
 
 >>> fs_two = FieldSet(Two)
 >>> fs_two.configure(options=[fs_two.foo.label('1 < 2')])
->>> print fs_two.render()
+>>> print(fs_two.render())
 <div>
  <label class="field_opt" for="Two--foo">
   1 &lt; 2
@@ -1084,12 +1084,12 @@
 
 >>> fs_conflict = FieldSet(ConflictNames)
 >>> fs_conflict.rebind(conflict_names)
->>> print fs_conflict.render() #doctest: +ELLIPSIS
+>>> print(fs_conflict.render()) #doctest: +ELLIPSIS
 <div>
 ...
 
 >>> fs_syn = FieldSet(Synonym)
->>> print fs_syn.render()
+>>> print(fs_syn.render())
 <div>
  <label class="field_opt" for="Synonym--_foo">
   foo
@@ -1103,7 +1103,7 @@
 </script>
 
 >>> fs_rec = FieldSet(RecursiveChild, session=session)
->>> print fs_rec.render() #doctest: +ELLIPSIS
+>>> print(fs_rec.render()) #doctest: +ELLIPSIS
 <div>
  <label class="field_req" for="RecursiveChild--typ_id">
   Typ id
diff --git a/formalchemy/tests/test_html5.py b/formalchemy/tests/test_html5.py
index 479c77c..fc6c270 100644
--- a/formalchemy/tests/test_html5.py
+++ b/formalchemy/tests/test_html5.py
@@ -7,37 +7,37 @@
 def test_render():
     """
     >>> html5_test_fieldset = FieldSet(Three)
-    >>> print html5_test_fieldset.foo.url().render()
+    >>> print(html5_test_fieldset.foo.url().render())
     <input id="Three--foo" name="Three--foo" type="url" />
 
-    >>> print html5_test_fieldset.foo.email().render()
+    >>> print(html5_test_fieldset.foo.email().render())
     <input id="Three--foo" name="Three--foo" type="email" />
 
-    >>> print html5_test_fieldset.foo.range(min_=2, max_=10, step=5).render()
+    >>> print(html5_test_fieldset.foo.range(min_=2, max_=10, step=5).render())
     <input id="Three--foo" max="10" min="2" name="Three--foo" step="5" type="range" />
 
-    >>> print html5_test_fieldset.foo.number(min_=2, max_=10, step=5).render()
+    >>> print(html5_test_fieldset.foo.number(min_=2, max_=10, step=5).render())
     <input id="Three--foo" max="10" min="2" name="Three--foo" step="5" type="number" />
 
-    >>> print html5_test_fieldset.foo.time().render()
+    >>> print(html5_test_fieldset.foo.time().render())
     <input id="Three--foo" name="Three--foo" type="time" />
 
-    >>> print html5_test_fieldset.foo.date().render()
+    >>> print(html5_test_fieldset.foo.date().render())
     <input id="Three--foo" name="Three--foo" type="date" />
 
-    >>> print html5_test_fieldset.foo.datetime().render()
+    >>> print(html5_test_fieldset.foo.datetime().render())
     <input id="Three--foo" name="Three--foo" type="datetime" />
 
-    >>> print html5_test_fieldset.foo.datetime_local().render()
+    >>> print(html5_test_fieldset.foo.datetime_local().render())
     <input id="Three--foo" name="Three--foo" type="date" />
 
-    >>> print html5_test_fieldset.foo.week().render()
+    >>> print(html5_test_fieldset.foo.week().render())
     <input id="Three--foo" name="Three--foo" type="week" />
 
-    >>> print html5_test_fieldset.foo.month().render()
+    >>> print(html5_test_fieldset.foo.month().render())
     <input id="Three--foo" name="Three--foo" type="month" />
 
-    >>> print html5_test_fieldset.foo.color().render()
+    >>> print(html5_test_fieldset.foo.color().render())
     <input id="Three--foo" name="Three--foo" type="color" />
     """
 
diff --git a/formalchemy/tests/test_json.py b/formalchemy/tests/test_json.py
index e39174a..3abddba 100644
--- a/formalchemy/tests/test_json.py
+++ b/formalchemy/tests/test_json.py
@@ -23,7 +23,7 @@ def to_dict():
     >>> fs.to_dict(with_prefix=False)
     {'orders': [1], 'id': 1, 'name': u'Bill', 'email': u'bill@example.com'}
 
-    >>> print json.dumps(fs.to_dict(with_prefix=False, as_string=True))
+    >>> print(json.dumps(fs.to_dict(with_prefix=False, as_string=True)))
     {"orders": "Quantity: 10", "password": "******", "id": "1", "name": "Bill", "email": "bill@example.com"}
     """
 
diff --git a/formalchemy/tests/test_manual.py b/formalchemy/tests/test_manual.py
index 53e4841..8ed34b0 100644
--- a/formalchemy/tests/test_manual.py
+++ b/formalchemy/tests/test_manual.py
@@ -15,7 +15,7 @@ class ReportByUserForm(object):
 def test_manual(self):
     """
     >>> fs = FieldSet(Manual)
-    >>> print configure_and_render(fs, focus=None)
+    >>> print(configure_and_render(fs, focus=None))
     <div>
      <label class="field_opt" for="Manual--a">
       A
@@ -43,13 +43,13 @@ def test_manual(self):
      </textarea>
     </div>
     >>> fs.rebind(data={'Manual--a': 'asdf'})
-    >>> print pretty_html(fs.a.render())
+    >>> print(pretty_html(fs.a.render()))
     <input id="Manual--a" name="Manual--a" type="text" value="asdf" />
 
     >>> t = FieldSet(Manual)
     >>> t.configure(include=[t.a, t.b], readonly=True)
     >>> t.model.b = [1, 2]
-    >>> print t.render()
+    >>> print(t.render())
     <tbody>
      <tr>
       <td class="field_readonly">
@@ -68,11 +68,11 @@ def test_manual(self):
      </tr>
     </tbody>
     >>> t.model.a = 'test'
-    >>> print t.a.render_readonly()
+    >>> print(t.a.render_readonly())
     test
     >>> t.configure(readonly=True, options=[t.a.with_renderer(EscapingReadonlyRenderer)])
     >>> t.model.a = '<test>'
-    >>> print t.a.render_readonly()
+    >>> print(t.a.render_readonly())
     &lt;test&gt;
 
     """
@@ -80,7 +80,7 @@ def test_manual(self):
 def test_manual2():
     """
     >>> fs = FieldSet(ReportByUserForm)
-    >>> print fs.render() #doctest: +ELLIPSIS
+    >>> print(fs.render()) #doctest: +ELLIPSIS
     <div>
      <label class="field_req" for="ReportByUserForm--from_date">
       From date
diff --git a/formalchemy/tests/test_multiple_keys.py b/formalchemy/tests/test_multiple_keys.py
index 1797087..73dbaef 100644
--- a/formalchemy/tests/test_multiple_keys.py
+++ b/formalchemy/tests/test_multiple_keys.py
@@ -6,18 +6,18 @@ def test_renderer_names():
     Check that the input name take care of multiple primary keys::
 
         >>> fs = FieldSet(primary1)
-        >>> print fs.field.render()
+        >>> print(fs.field.render())
         <input id="PrimaryKeys-1_22-field" maxlength="10" name="PrimaryKeys-1_22-field" type="text" value="value1" />
 
         >>> fs = FieldSet(primary2)
-        >>> print fs.field.render()
+        >>> print(fs.field.render())
         <input id="PrimaryKeys-1_33-field" maxlength="10" name="PrimaryKeys-1_33-field" type="text" value="value2" />
 
     Check form rendering with keys::
 
         >>> fs = FieldSet(primary2)
         >>> fs.configure(pk=True)
-        >>> print fs.render()
+        >>> print(fs.render())
         <div>
          <label class="field_req" for="PrimaryKeys-1_33-id">
           Id
@@ -50,7 +50,7 @@ def test_foreign_keys():
         >>> fs = FieldSet(orderuser2)
         >>> fs.configure(pk=True)
 
-        >>> print pretty_html(fs.user.render())
+        >>> print(pretty_html(fs.user.render()))
         <select id="OrderUser-1_2-user_id" name="OrderUser-1_2-user_id">
          <option selected="selected" value="1">
           Bill
@@ -60,7 +60,7 @@ def test_foreign_keys():
          </option>
         </select>
 
-        >>> print pretty_html(fs.order.render())
+        >>> print(pretty_html(fs.order.render()))
         <select id="OrderUser-1_2-order_id" name="OrderUser-1_2-order_id">
          <option value="1">
           Quantity: 10
diff --git a/formalchemy/tests/test_options.py b/formalchemy/tests/test_options.py
index d12d693..aea49ac 100644
--- a/formalchemy/tests/test_options.py
+++ b/formalchemy/tests/test_options.py
@@ -4,7 +4,7 @@
 def test_dropdown():
     """
     >>> fs = FieldSet(bill)
-    >>> print pretty_html(fs.orders.render())
+    >>> print(pretty_html(fs.orders.render()))
     <select id="User-1-orders" multiple="multiple" name="User-1-orders" size="5">
      <option value="2">
       Quantity: 5
@@ -24,7 +24,7 @@ def test_lazy_filtered_dropdown():
     >>> def available_orders(fs_):
     ...     return fs_.session.query(Order).filter_by(quantity=10)
     >>> fs.configure(include=[fs.orders.dropdown(options=available_orders)])
-    >>> print pretty_html(fs.orders.render())
+    >>> print(pretty_html(fs.orders.render()))
     <select id="User-1-orders" multiple="multiple" name="User-1-orders" size="5">
      <option selected="selected" value="1">
       Quantity: 10
@@ -38,7 +38,7 @@ def test_lazy_record():
     >>> r = engine.execute('select quantity, user_id from orders').fetchall()
     >>> r = engine.execute("select 'Swedish' as name, 'sv_SE' as iso_code union all select 'English', 'en_US'").fetchall()
     >>> fs.configure(include=[fs.orders.dropdown(options=r)])
-    >>> print pretty_html(fs.orders.render())
+    >>> print(pretty_html(fs.orders.render()))
     <select id="User-1-orders" multiple="multiple" name="User-1-orders" size="5">
      <option value="sv_SE">
       Swedish
@@ -53,7 +53,7 @@ def test_manual_options():
     """
     >>> fs = FieldSet(bill)
     >>> fs.append(Field(name="cb").checkbox(options=[('one', 1), ('two', 2)])) 
-    >>> print fs.render() #doctest: +ELLIPSIS
+    >>> print(fs.render()) #doctest: +ELLIPSIS
     <div>...
      <label class="field_opt" for="User-1-cb">
       Cb
diff --git a/formalchemy/tests/test_readonly.py b/formalchemy/tests/test_readonly.py
index 4ba114c..0ee2cd3 100644
--- a/formalchemy/tests/test_readonly.py
+++ b/formalchemy/tests/test_readonly.py
@@ -8,7 +8,7 @@ def test_readonly_mode():
 
         >>> fs = FieldSet(Two)
         >>> fs.configure(options=[fs.foo.readonly()])
-        >>> print fs.render()
+        >>> print(fs.render())
         <div>
          <label class="field_opt" for="Two--foo">
           Foo
@@ -24,7 +24,7 @@ def test_focus_with_readonly_mode():
 
         >>> fs = FieldSet(Three)
         >>> fs.configure(options=[fs.foo.readonly()])
-        >>> print fs.render()
+        >>> print(fs.render())
         <div>
          <label class="field_opt" for="Three--foo">
           Foo
diff --git a/formalchemy/tests/test_request.py b/formalchemy/tests/test_request.py
index 4d9564a..d11b83c 100644
--- a/formalchemy/tests/test_request.py
+++ b/formalchemy/tests/test_request.py
@@ -55,7 +55,7 @@ def test_post_on_grid():
     True
     >>> g.validate()
     True
-    >>> print g.render()  #doctest: +ELLIPSIS
+    >>> print(g.render())  #doctest: +ELLIPSIS
     <thead>...<input id="User-1-password" maxlength="20" name="User-1-password" type="text" value="xx" />...</tbody>
     """
     
diff --git a/formalchemy/tests/test_tables.py b/formalchemy/tests/test_tables.py
index e2c163e..04b7c7d 100644
--- a/formalchemy/tests/test_tables.py
+++ b/formalchemy/tests/test_tables.py
@@ -4,7 +4,7 @@ def test_rebind_and_render(self):
 
     >>> g = Grid(User, session=session)
     >>> g.rebind([bill, john])
-    >>> print pretty_html(g.render())
+    >>> print(pretty_html(g.render()))
     <thead>
      <tr>
       <th>
@@ -79,14 +79,14 @@ def test_extra_field():
     >>> g = Grid(User, session=session)
     >>> g.add(Field('edit', types.String, 'fake edit link'))
     >>> g._set_active(john)
-    >>> print g.edit.render()
+    >>> print(g.edit.render())
     <input id="User-2-edit" name="User-2-edit" type="text" value="fake edit link" />
 
     And extra field w/ callable value:
     >>> g = Grid(User, session=session)
     >>> g.add(Field('edit', types.String, lambda o: 'fake edit link for %s' % o.id))
     >>> g._set_active(john)
-    >>> print g.edit.render()
+    >>> print(g.edit.render())
     <input id="User-2-edit" name="User-2-edit" type="text" value="fake edit link for 2" />
 
     Text syncing:
@@ -132,7 +132,7 @@ def test_rebind_render():
     Explicitly test rebind + render:
     >>> g = Grid(User, session=session, prefix="myprefix")
     >>> g.rebind([bill, john])
-    >>> print pretty_html(g.render())
+    >>> print(pretty_html(g.render()))
     <thead>
      <tr>
       <th>
diff --git a/formalchemy/tests/test_unicode.py b/formalchemy/tests/test_unicode.py
index e459365..50d233f 100644
--- a/formalchemy/tests/test_unicode.py
+++ b/formalchemy/tests/test_unicode.py
@@ -15,21 +15,21 @@ def test_unicode():
     >>> session.flush()
     >>> FieldSet.default_renderers = original_renderers.copy()
     >>> fs = FieldSet(jose)
-    >>> print fs.render() #doctest: +ELLIPSIS
+    >>> print(fs.render()) #doctest: +ELLIPSIS
     <div>
     ...<input id="User-3-name" maxlength="30" name="User-3-name" type="text" value="José" />...
 
     >>> fs.readonly = True
-    >>> print fs.render() #doctest: +ELLIPSIS
+    >>> print(fs.render()) #doctest: +ELLIPSIS
     <tbody>...José...
 
     >>> fs = FieldSet(order4)
-    >>> print fs.render() #doctest: +ELLIPSIS
+    >>> print(fs.render()) #doctest: +ELLIPSIS
     <div>
     ...José...
 
     >>> fs.readonly = True
-    >>> print fs.render() #doctest: +ELLIPSIS
+    >>> print(fs.render()) #doctest: +ELLIPSIS
     <tbody>...José...
 
     >>> session.rollback()