Folllow up: Support for python "re" module for doing regex in jinja templates

CHANGELOG.md

@@ -2,13 +2,15 @@
 
 ### Features
 - Added macro get_partitions_metadata(table) to return partition metadata for partitioned table [#2596](https://github.com/fishtown-analytics/dbt/pull/2596)
+- Added native python 're' module for regex in jinja templates [#2851](https://github.com/fishtown-analytics/dbt/pull/2851)
 
 ### Fixes
 - Respect --project-dir in dbt clean command ([#2840](https://github.com/fishtown-analytics/dbt/issues/2840), [#2841](https://github.com/fishtown-analytics/dbt/pull/2841))
 
 Contributors:
 - [@feluelle](https://github.com/feluelle) ([#2841](https://github.com/fishtown-analytics/dbt/pull/2841))
 - [ran-eh](https://github.com/ran-eh) [#2596](https://github.com/fishtown-analytics/dbt/pull/2596)
+- [@hochoy](https://github.com/hochoy) [#2851](https://github.com/fishtown-analytics/dbt/pull/2851)
 
 ## dbt 0.19.0b1 (October 21, 2020)
 

core/dbt/context/base.py

@@ -18,6 +18,7 @@
 # approaches which will extend well to potentially many modules
 import pytz
 import datetime
+import re
 
 
 def get_pytz_module_context() -> Dict[str, Any]:
@@ -42,10 +43,19 @@ def get_datetime_module_context() -> Dict[str, Any]:
     }
 
 
+def get_re_module_context() -> Dict[str, Any]:
+    context_exports = re.__all__
+
+    return {
+        name: getattr(re, name) for name in context_exports
+    }
+
+
 def get_context_modules() -> Dict[str, Dict[str, Any]]:
     return {
         'pytz': get_pytz_module_context(),
         'datetime': get_datetime_module_context(),
+        're': get_re_module_context(),
     }