Add isort Fabric task

fabfile.py

@@ -42,6 +42,13 @@ def style():
             '--max-complexity=9 .')
 
 
+@task
+def isort():
+    """Use isort to automatically (re-)order the import statements on the top of files"""
+    with lcd(_relative_to_fabfile()):
+        local('isort **/*.py')
+
+
 @task
 def clean():
     """Remove all generated files (.pyc, .coverage, .egg, etc)."""

requirements.in

@@ -9,4 +9,5 @@ arrow
 Fabric
 flake8
 grin
+isort
 wheel

requirements.txt

@@ -8,16 +8,22 @@ argparse==1.3.0           # via grin
 arrow==0.5.4
 click==4.0
 ecdsa==0.13               # via paramiko
+enum34==1.0.4             # via pies
 fabric==1.10.1
 flake8==2.4.1
 flask==0.10.1
 grin==1.2.1
+ipaddress==1.0.7          # via pies2overrides
+isort==3.9.6
 itsdangerous==0.24        # via flask
 jinja2==2.7.3             # via flask
 markupsafe==0.23          # via jinja2
 mccabe==0.3               # via flake8
+natsort==4.0.1            # via isort
 paramiko==1.15.2          # via fabric
 pep8==1.5.7               # via flake8
+pies2overrides==2.6.5     # via pies
+pies==2.6.5               # via isort
 pycrypto==2.6.1           # via paramiko
 pyflakes==0.8.1           # via flake8
 python-dateutil==2.4.2    # via arrow