use sys.exit instead of site.exit

Author: dzuelke

bob/cli.py

@@ -13,6 +13,7 @@
     Environment Variables: AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, S3_BUCKET, S3_PREFIX (optional)
 """
 import os
+import sys
 
 from docopt import docopt
 from .models import Formula
@@ -27,7 +28,7 @@ def build(formula):
         assert f.exists
     except AssertionError:
         print 'Formula {} doesn\'t appear to exist.'.format(formula)
-        exit(1)
+        sys.exit(1)
 
     # CLI lies ahead.
     f.build()

bob/models.py

@@ -99,7 +99,7 @@ def resolve_deps(self):
                     print
                     print 'ERROR: Archive {} does not exist.'.format(key_name)
                     print '    Please deploy it to continue.'
-                    exit(1)
+                    sys.exit(1)
 
                 # Grab the Dep from S3, download it to a temp file.
                 archive = mkstemp()[1]
@@ -129,7 +129,7 @@ def build(self):
         if p.returncode != 0:
             print
             print 'ERROR: An error occurred.'
-            exit(1)
+            sys.exit(1)
 
 
     def archive(self):
@@ -152,7 +152,7 @@ def deploy(self, allow_overwrite=False):
             if not allow_overwrite:
                 print 'ERROR: Archive {} already exists.'.format(key_name)
                 print '    Use the --overwrite flag to continue.'
-                exit(1)
+                sys.exit(1)
         else:
             key = bucket.new_key(key_name)