Use warnings module for deprecation warning (#444)

IAMconsortium · Oct 30, 2020 · 2a569ff · 2a569ff
1 parent f071e79
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diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
@@ -3,6 +3,7 @@
 ## Individual updates
 
 - [#445](https://github.com/IAMconsortium/pyam/pull/445) Prevent conflicts between attributes and data/meta columns
+- [#444](https://github.com/IAMconsortium/pyam/pull/444) Use warnings module for deprecation warnings
 
 # Release v0.8.0
 

diff --git a/pyam/logging.py b/pyam/logging.py
@@ -1,5 +1,6 @@
 from contextlib import contextmanager
 import logging
+import warnings
 
 logger = logging.getLogger(__name__)
 
@@ -15,4 +16,8 @@ def adjust_log_level(logger, level='ERROR'):
 def deprecation_warning(msg, type='This method'):
     """Write deprecation warning to log"""
     warn = 'is deprecated and will be removed in future versions.'
-    logger.warning('{} {} {}'.format(type, warn, msg))
+    warnings.warn(
+        '{} {} {}'.format(type, warn, msg),
+        DeprecationWarning,
+        stacklevel=3
+    )