diff --git a/modernize/fixes/fix_itertools_six.py b/modernize/fixes/fix_itertools_six.py
index b6ff62a..8880ec1 100644
--- a/modernize/fixes/fix_itertools_six.py
+++ b/modernize/fixes/fix_itertools_six.py
@@ -5,6 +5,7 @@
     If itertools is imported as something else (ie: import itertools as it;
     it.izip(spam, eggs)) method calls will not get fixed.
     """
+
 # This is a derived work of Lib/lib2to3/fixes/fix_itertools_import.py. That file
 # is under the copyright of the Python Software Foundation and licensed
 # under the Python Software Foundation License 2.
diff --git a/modernize/fixes/fix_metaclass.py b/modernize/fixes/fix_metaclass.py
index 2bccdb9..15f1574 100644
--- a/modernize/fixes/fix_metaclass.py
+++ b/modernize/fixes/fix_metaclass.py
@@ -14,6 +14,7 @@
    This fixer also tries very hard to keep original indenting and spacing
    in all those corner cases.
 """
+
 # This is a derived work of Lib/lib2to3/fixes/fix_metaclass.py. That file
 # is under the copyright of the Python Software Foundation and licensed
 # under the Python Software Foundation License 2.
diff --git a/modernize/fixes/fix_raise.py b/modernize/fixes/fix_raise.py
index 68ef28c..97ef8b6 100644
--- a/modernize/fixes/fix_raise.py
+++ b/modernize/fixes/fix_raise.py
@@ -17,6 +17,7 @@
    any client code would have to be changed as well, we don't automate
    this.
 """
+
 # Author: Collin Winter, Armin Ronacher
 from __future__ import generator_stop
 
diff --git a/modernize/fixes/fix_raise_six.py b/modernize/fixes/fix_raise_six.py
index 54f4f7a..71b5f85 100644
--- a/modernize/fixes/fix_raise_six.py
+++ b/modernize/fixes/fix_raise_six.py
@@ -3,6 +3,7 @@
 raise E, V, T -> six.reraise(E, V, T)
 
 """
+
 # Author : Markus Unterwaditzer
 from __future__ import generator_stop
 
diff --git a/modernize/fixes/fix_urllib_six.py b/modernize/fixes/fix_urllib_six.py
index 39733fb..e85e239 100644
--- a/modernize/fixes/fix_urllib_six.py
+++ b/modernize/fixes/fix_urllib_six.py
@@ -2,6 +2,7 @@
    This is a copy of Lib/lib2to3/fixes/fix_urllib.py, but modified to point to the
    six.moves locations for new libraries instead of the Python 3 locations.
 """
+
 # This is a derived work of Lib/lib2to3/fixes/fix_urllib.py. That file
 # is under the copyright of the Python Software Foundation and licensed
 # under the Python Software Foundation License 2.
diff --git a/tests/test_fix_imports_six.py b/tests/test_fix_imports_six.py
index 66df698..711945a 100644
--- a/tests/test_fix_imports_six.py
+++ b/tests/test_fix_imports_six.py
@@ -4,7 +4,7 @@
 import unittest
 
 try:
-    from six.moves import tkinter
+    import tkinter
 except ImportError:
     tkinter = None
 
diff --git a/tests/test_future_behaviour.py b/tests/test_future_behaviour.py
index e6fba63..92a08cc 100644
--- a/tests/test_future_behaviour.py
+++ b/tests/test_future_behaviour.py
@@ -66,7 +66,7 @@ def _check_on_input(file_content, extra_flags=[]):
     try:
         tmpdirname = tempfile.mkdtemp()
         test_input_name = os.path.join(tmpdirname, "input.py")
-        with open(test_input_name, "wt") as input:
+        with open(test_input_name, "w") as input:
             input.write(file_content)
         modernize_main(extra_flags + ["-w", test_input_name])
         _check_for_multiple_futures(test_input_name, file_content)
@@ -94,7 +94,7 @@ def test_two_files_on_single_run():
             os.path.join(tmpdirname, f"input_{idx}.py") for idx in range(0, 3)
         ]
         for input_name in input_names:
-            with open(input_name, "wt") as input:
+            with open(input_name, "w") as input:
                 input.write(TWO_PRINTS_CONTENT)
         modernize_main(["-w"] + input_names)
         for input_name in input_names:
diff --git a/tests/utils.py b/tests/utils.py
index 6f84434..1c8d610 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -23,7 +23,7 @@ def check_on_input(
     tmpdirname = tempfile.mkdtemp()
     try:
         test_input_name = os.path.join(tmpdirname, "input.py")
-        with open(test_input_name, "wt") as input_file:
+        with open(test_input_name, "w") as input_file:
             input_file.write(input_content)
 
         def _check(this_input_content, which_check, check_return_code=True):