Much needed PEP8 love. Use spaces, not tabs.

plugins/git-prompt/gitstatus.py

 #!/usr/bin/env python
 # -*- coding: UTF-8 -*-
+from subprocess import Popen, PIPE
+import re
 
 # change those symbols to whatever you prefer
-symbols = {'ahead of': '↑', 'behind': '↓', 'staged':'♦', 'changed':'‣', 'untracked':'…', 'clean':'⚡', 'unmerged':'≠', 'sha1':':'}
-
-from subprocess import Popen, PIPE
+symbols = {
+    'ahead of': '↑',
+    'behind': '↓',
+    'staged': '♦',
+    'changed': '‣',
+    'untracked': '…',
+    'clean': '⚡',
+    'unmerged': '≠',
+    'sha1': ':'
+}
 
-output,error = Popen(['git','status'], stdout=PIPE, stderr=PIPE).communicate()
+output, error = Popen(
+    ['git', 'status'], stdout=PIPE, stderr=PIPE).communicate()
 
 if error:
-	import sys
-	sys.exit(0)
+    import sys
+    sys.exit(0)
 lines = output.splitlines()
 
-import re
-behead_re = re.compile(r"^# Your branch is (ahead of|behind) '(.*)' by (\d+) commit")
+behead_re = re.compile(
+    r"^# Your branch is (ahead of|behind) '(.*)' by (\d+) commit")
 diverge_re = re.compile(r"^# and have (\d+) and (\d+) different")
 
 status = ''
@@ -23,46 +33,50 @@ changed = re.compile(r'^# Changed but not updated:$', re.MULTILINE)
 untracked = re.compile(r'^# Untracked files:$', re.MULTILINE)
 unmerged = re.compile(r'^# Unmerged paths:$', re.MULTILINE)
 
+
 def execute(*command):
-	out, err = Popen(stdout=PIPE, stderr=PIPE, *command).communicate()
-	if not err:
-		nb = len(out.splitlines())
-	else:
-		nb = '?'
-	return nb
+    out, err = Popen(stdout=PIPE, stderr=PIPE, *command).communicate()
+    if not err:
+        nb = len(out.splitlines())
+    else:
+        nb = '?'
+    return nb
 
 if staged.search(output):
-	nb = execute(['git','diff','--staged','--name-only','--diff-filter=ACDMRT'])
-	status += '%s%s' % (symbols['staged'], nb)
+    nb = execute(
+        ['git', 'diff', '--staged', '--name-only', '--diff-filter=ACDMRT'])
+    status += '%s%s' % (symbols['staged'], nb)
 if unmerged.search(output):
-	nb = execute(['git','diff', '--staged','--name-only', '--diff-filter=U'])
-	status += '%s%s' % (symbols['unmerged'], nb)
+    nb = execute(['git', 'diff', '--staged', '--name-only', '--diff-filter=U'])
+    status += '%s%s' % (symbols['unmerged'], nb)
 if changed.search(output):
-	nb = execute(['git','diff','--name-only', '--diff-filter=ACDMRT'])
-	status += '%s%s' % (symbols['changed'], nb)
+    nb = execute(['git', 'diff', '--name-only', '--diff-filter=ACDMRT'])
+    status += '%s%s' % (symbols['changed'], nb)
 if untracked.search(output):
-## 		nb = len(Popen(['git','ls-files','--others','--exclude-standard'],stdout=PIPE).communicate()[0].splitlines())
-## 		status += "%s" % (symbols['untracked']*(nb//3 + 1), )
-	status += symbols['untracked']
+    status += symbols['untracked']
 if status == '':
-	status = symbols['clean']
+    status = symbols['clean']
 
 remote = ''
 
 bline = lines[0]
 if bline.find('Not currently on any branch') != -1:
-	branch = symbols['sha1']+ Popen(['git','rev-parse','--short','HEAD'], stdout=PIPE).communicate()[0][:-1]
+    branch = symbols['sha1'] + Popen([
+        'git',
+        'rev-parse',
+        '--short',
+        'HEAD'], stdout=PIPE).communicate()[0][:-1]
 else:
-	branch = bline.split(' ')[3]
-	bstatusline = lines[1]
-	match = behead_re.match(bstatusline)
-	if match:
-		remote = symbols[match.groups()[0]]
-		remote += match.groups()[2]
-	elif lines[2:]:
-		div_match = diverge_re.match(lines[2])
-	 	if div_match:
-			remote = "{behind}{1}{ahead of}{0}".format(*div_match.groups(), **symbols)
-
-print '\n'.join([branch,remote,status])
+    branch = bline.split(' ')[3]
+    bstatusline = lines[1]
+    match = behead_re.match(bstatusline)
+    if match:
+        remote = symbols[match.groups()[0]]
+        remote += match.groups()[2]
+    elif lines[2:]:
+        div_match = diverge_re.match(lines[2])
+        if div_match:
+            remote = "{behind}{1}{ahead of}{0}".format(
+                *div_match.groups(), **symbols)
 
+print('\n'.join([branch, remote, status]))