diff --git a/tasks.py b/tasks.py
index 6a6ca23..8e88205 100644
--- a/tasks.py
+++ b/tasks.py
@@ -1,12 +1,8 @@
-# -*- coding: utf-8 -*-
-
 import os
 import shutil
 import sys
-import datetime
 
 from invoke import task
-from invoke.util import cd
 from pelican.server import ComplexHTTPRequestHandler, RootedHTTPServer
 
 CONFIG = {
@@ -16,6 +12,7 @@ CONFIG = {
     'port': 8000,
 }
 
+
 @task
 def clean(c):
     """Remove generated files"""
@@ -23,21 +20,25 @@ def clean(c):
         shutil.rmtree(CONFIG['deploy_path'])
         os.makedirs(CONFIG['deploy_path'])
 
+
 @task
 def build(c):
     """Build local version of site"""
     c.run('pelican -s pelicanconf.py')
 
+
 @task
 def rebuild(c):
     """`build` with the delete switch"""
     c.run('pelican -d -s pelicanconf.py')
 
+
 @task
 def regenerate(c):
     """Automatically regenerate site upon file modification"""
     c.run('pelican -r -s pelicanconf.py')
 
+
 @task
 def serve(c):
     """Serve site at http://localhost:8000/"""
@@ -53,12 +54,14 @@ def serve(c):
     sys.stderr.write('Serving on port {port} ...\n'.format(**CONFIG))
     server.serve_forever()
 
+
 @task
 def reserve(c):
     """`build`, then `serve`"""
     build(c)
     serve(c)
 
+
 @task
 def preview(c):
     """Build production version of site"""
@@ -74,4 +77,3 @@ def publish(c):
         '{} {production}:{dest_path}'.format(
             CONFIG['deploy_path'].rstrip('/') + '/',
             **CONFIG))
-