diff --git a/pythonx/jedi_vim.py b/pythonx/jedi_vim.py
index 7edc8ac..6d360f5 100644
--- a/pythonx/jedi_vim.py
+++ b/pythonx/jedi_vim.py
@@ -229,6 +229,7 @@ def tempfile(content):
     finally:
         os.unlink(f.name)
 
+
 @_check_jedi_availability(show_error=True)
 @catch_and_print_exceptions
 def goto(mode="goto", no_output=False):
@@ -250,7 +251,6 @@ def goto(mode="goto", no_output=False):
     elif mode == "assignment":
         definitions = script.goto_assignments()
 
-
     if no_output:
         return definitions
     if not definitions:
@@ -270,10 +270,12 @@ def goto(mode="goto", no_output=False):
                                     using_tagstack=using_tagstack)
                 if not result:
                     return []
-            if d.module_path and os.path.exists(d.module_path) and using_tagstack:
+            if (using_tagstack and d.module_path and
+                    os.path.exists(d.module_path)):
                 tagname = d.name
-                with tempfile('{0}\t{1}\t{2}'.format(tagname, d.module_path,
-                        'call cursor({0}, {1})'.format(d.line, d.column + 1))) as f:
+                with tempfile('{0}\t{1}\t{2}'.format(
+                        tagname, d.module_path, 'call cursor({0}, {1})'.format(
+                            d.line, d.column + 1))) as f:
                     old_tags = vim.eval('&tags')
                     old_wildignore = vim.eval('&wildignore')
                     try:
@@ -389,7 +391,8 @@ def show_call_signatures(signatures=()):
         line = vim_eval("getline(%s)" % line_to_replace)
 
         # Descriptions are usually looking like `param name`, remove the param.
-        params = [p.description.replace('\n', '').replace('param ', '', 1) for p in signature.params]
+        params = [p.description.replace('\n', '').replace('param ', '', 1)
+                  for p in signature.params]
         try:
             # *_*PLACEHOLDER*_* makes something fat. See after/syntax file.
             params[signature.index] = '*_*%s*_*' % params[signature.index]
@@ -587,7 +590,8 @@ def do_rename(replace, orig=None):
             assert r.module_path is not None
             result = new_buffer(r.module_path)
             if not result:
-                echo_highlight("Jedi-vim: failed to create buffer window for {0}!".format(r.module_path))
+                echo_highlight('Failed to create buffer window for %s!' % (
+                    r.module_path))
                 continue
 
         buffers.add(vim.current.buffer.name)
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000..7da1f96
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,2 @@
+[flake8]
+max-line-length = 100