Improve brew* rules import time

thefuck/specific/brew.py

@@ -0,0 +1,15 @@
+import subprocess
+from thefuck.utils import memoize, which
+
+
+enabled_by_default = bool(which('brew'))
+
+
+@memoize
+def get_brew_path_prefix():
+    """To get brew path"""
+    try:
+        return subprocess.check_output(['brew', '--prefix'],
+                                       universal_newlines=True).strip()
+    except:
+        return None