fix issue 82 deepcopy not working properly0.13.3

3 files changed, 7 insertions, 3 deletions

diff --git a/README.rst b/README.rst
index 34f6dc2..1068932 100644
--- a/README.rst
+++ b/README.rst
@@ -18,6 +18,9 @@ ChangeLog
 
 .. should insert NEXT: at the beginning of line for next key
 
+0.13.3 (2016-12-05):
+  - fix for issue 82, deepcopy not working (reported by code monk)
+
 0.13.2 (2016-11-28):
   - fix for comments after empty (null) values  (reported by dsw2127 and cokelaer)
 
diff --git a/__init__.py b/__init__.py
index 24189c4..d5dc197 100644
--- a/__init__.py
+++ b/__init__.py
@@ -9,7 +9,7 @@ from __future__ import absolute_import
 
 _package_data = dict(
     full_package_name="ruamel.yaml",
-    version_info=(0, 13, 2),
+    version_info=(0, 13, 3),
     author="Anthon van der Neut",
     author_email="a.van.der.neut@ruamel.eu",
     description="ruamel.yaml is a YAML parser/emitter that supports roundtrip preservation of comments, seq/map flow style, and map key order",  # NOQA
diff --git a/resolver.py b/resolver.py
index b0e8105..072fa95 100644
--- a/resolver.py
+++ b/resolver.py
@@ -3,7 +3,6 @@
 from __future__ import absolute_import
 
 import re
-import copy
 
 from typing import Any, Dict  # NOQA
 
@@ -39,7 +38,9 @@ class BaseResolver(object):
     def add_implicit_resolver(cls, tag, regexp, first):
         # type: (Any, Any, Any) -> None
         if 'yaml_implicit_resolvers' not in cls.__dict__:
-            cls.yaml_implicit_resolvers = copy.deepcopy(cls.yaml_implicit_resolvers)
+            # deepcopy doesn't work here
+            cls.yaml_implicit_resolvers = dict((k, cls.yaml_implicit_resolvers[k][:])
+                                               for k in cls.yaml_implicit_resolvers)
         if first is None:
             first = [None]
         for ch in first: