Add a new Params section to factories.

This handles parameters that alter the declarations of a factory.

A few technical notes:
- A parameter's outcome may alter other parameters
- In order to fix that, we perform a (simple) cyclic definition
  detection at class declaration time.
- Parameters may only be either naked values or ComplexParameter
  subclasses
- Parameters are never passed to the underlying class

1 files changed, 2 insertions, 2 deletions

diff --git a/factory/utils.py b/factory/utils.py
index 15dba0a..cfae4ec 100644
--- a/factory/utils.py
+++ b/factory/utils.py
@@ -35,7 +35,7 @@ def extract_dict(prefix, kwargs, pop=True, exclude=()):
 
     Args:
         prefix (str): the prefix to use for lookups
-        kwargs (dict): the dict from which values should be extracted
+        kwargs (dict): the dict from which values should be extracted; WILL BE MODIFIED.
         pop (bool): whether to use pop (True) or get (False)
         exclude (iterable): list of prefixed keys that shouldn't be extracted
 
@@ -68,7 +68,7 @@ def multi_extract_dict(prefixes, kwargs, pop=True, exclude=()):
 
     Args:
         prefixes (str list): the prefixes to use for lookups
-        kwargs (dict): the dict from which values should be extracted
+        kwargs (dict): the dict from which values should be extracted; WILL BE MODIFIED.
         pop (bool): whether to use pop (True) or get (False)
         exclude (iterable): list of prefixed keys that shouldn't be extracted