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[MRG] Fixed equality check in pprint #13584

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NicolasHug
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Reference Issues/PRs

Fixes #13583

What does this implement/fix? Explain your changes.

Equality checks for arbitrary objects are (very) tricky, so I decided to compare their repr.

As long as no estimator recursively uses itself as a parameter, it should be fine.

Any other comments?

@@ -95,7 +95,7 @@ def _changed_params(estimator):
init_params = signature(init_func).parameters
init_params = {name: param.default for name, param in init_params.items()}
for k, v in params.items():
if (v != init_params[k] and
if (repr(v) != repr(init_params[k]) and
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Nice hack :)

@TomDLT TomDLT merged commit d142764 into scikit-learn:master Apr 9, 2019
jeremiedbb pushed a commit to jeremiedbb/scikit-learn that referenced this pull request Apr 25, 2019
xhluca pushed a commit to xhluca/scikit-learn that referenced this pull request Apr 28, 2019
xhluca pushed a commit to xhluca/scikit-learn that referenced this pull request Apr 28, 2019
xhluca pushed a commit to xhluca/scikit-learn that referenced this pull request Apr 28, 2019
koenvandevelde pushed a commit to koenvandevelde/scikit-learn that referenced this pull request Jul 12, 2019
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bug in print_changed_only in new repr: vector values
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