Coding style (linting).

vigil

@@ -15,10 +15,41 @@ A status indicator summarises the state of each report, and a report is viewed
 by selecting this status indicator with the cursor. The types of status are
 listed below.
 
-The reports are cached in the codebase's root directory in a ".vigil" directory.
+The reports are cached in the codebase's root directory in a ".vigil"
+directory.
 """
 
 
+import asyncio
+import collections
+import contextlib
+import functools
+import gzip
+import multiprocessing
+import os
+import pickle
+import shutil
+import signal
+import subprocess
+import sys
+import tempfile
+import threading
+import time
+import traceback
+
+import docopt
+import pyinotify
+import urwid
+import urwid.raw_display
+
+import fill3
+import sandbox_fs
+import terminal
+import termstr
+import tools
+import worker
+
+
 USAGE = """
 Usage:
   vigil [options] <directory>
@@ -55,36 +86,6 @@ KEYS_DOC = """Keys:
 """
 
 
-import asyncio
-import collections
-import contextlib
-import functools
-import gzip
-import multiprocessing
-import os
-import pickle
-import shutil
-import signal
-import subprocess
-import sys
-import tempfile
-import threading
-import time
-import traceback
-
-import docopt
-import pyinotify
-import urwid
-import urwid.raw_display
-
-import fill3
-import sandbox_fs
-import terminal
-import termstr
-import tools
-import worker
-
-
 _LOG_PATH = os.path.join(os.getcwd(), "vigil.log")
 
 
@@ -686,11 +687,11 @@ class Screen:
         self._log.log_command("Paused workers." if self._is_paused else
                               "Running workers...")
         if self._is_paused:
-            for worker in self.workers:
-                worker.pause()
+            for worker_ in self.workers:
+                worker_.pause()
         else:
-            for worker in self.workers:
-                worker.continue_()
+            for worker_ in self.workers:
+                worker_.continue_()
 
     def quit_(self):
         os.kill(os.getpid(), signal.SIGINT)
@@ -936,11 +937,11 @@ def main(root_path, loop, worker_count=None, is_sandboxed=True,
         def exit_loop():
             log.log_command("Exiting...")
             time.sleep(0.05)
-            for worker in workers:
-                worker.pause()
-                worker.future.cancel()
-                if worker.result is not None:
-                    worker.result.reset()
+            for worker_ in workers:
+                worker_.pause()
+                worker_.future.cancel()
+                if worker_.result is not None:
+                    worker_.result.reset()
             loop.stop()
         loop.add_signal_handler(signal.SIGWINCH, on_window_resize)
         loop.add_signal_handler(signal.SIGINT, exit_loop)