Fix the error message of KeyAlreadyPresent

Close python-poetry#185
capuanob · Apr 16, 2022 · dbce05c · dbce05c
1 parent 760c34a
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 ### Fixed
 
+- Use the plain python string representation of `Key` in `KeyAlreadyPresent` error message. ([#185](https://github.com/sdispater/tomlkit/issues/185))
 - Fix the `astimezone()` and `replace()` methods of datetime objects. ([#188](https://github.com/sdispater/tomlkit/issues/188))
 - Add type definitions for `items()` function. ([#190](https://github.com/sdispater/tomlkit/issues/190))
 

diff --git a/tomlkit/exceptions.py b/tomlkit/exceptions.py
@@ -194,6 +194,7 @@ class KeyAlreadyPresent(TOMLKitError):
     """
 
     def __init__(self, key):
+        key = getattr(key, "key", key)
         message = f'Key "{key}" already exists.'
 
         super().__init__(message)