Fix various flake8 errors

powerline/bindings/ipython/post_0_11.py

@@ -28,6 +28,9 @@ class ConfigurableIpythonPowerline(IpythonPowerline):
 		super(ConfigurableIpythonPowerline, self).__init__()
 
 
+old_prompt_manager = None
+
+
 def load_ipython_extension(ip):
 	global old_prompt_manager
 
@@ -37,5 +40,6 @@ def load_ipython_extension(ip):
 	ip.prompt_manager = PowerlinePromptManager(powerline=powerline,
 		shell=ip.prompt_manager.shell, config=ip.prompt_manager.config)
 
+
 def unload_ipython_extension(ip):
 	ip.prompt_manager = old_prompt_manager

powerline/colorscheme.py

@@ -95,7 +95,7 @@ class Colorscheme(object):
 		if gradient_level is None:
 			pick_color = self.colors.__getitem__
 		else:
-			pick_color = lambda gradient : self.get_gradient(gradient, gradient_level)
+			pick_color = lambda gradient: self.get_gradient(gradient, gradient_level)
 
 		return {
 			'fg': pick_color(group_props['fg']),

powerline/segments/common.py

@@ -4,7 +4,6 @@ import os
 import sys
 
 from powerline.lib import memoize, urllib_read, urllib_urlencode, add_divider_highlight_group
-from functools import wraps
 
 
 def hostname(only_if_ssh=False):

powerline/segments/vim.py

@@ -266,8 +266,7 @@ def col_current(segment_info):
 def virtcol_current():
 	'''Return current visual column with concealed characters ingored'''
 	return [{'contents': vim_funcs['virtcol']('.'),
-			'highlight_group': ['virtcol_current', 'col_current'],
-			}]
+			'highlight_group': ['virtcol_current', 'col_current']}]
 
 
 def modified_buffers(text=u'+', join_str=','):