Change FormMixin.success_url to _StrOrPromise #2769
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Update `django.views.generic.edit.FormMixin.success_url` and `django.views.generic.edit.DeletionMixin.success_url` to `_StrOrPromise | None`, to allow using `reverse_lazy()` as attribute value. Fixes #typeddjango#2768
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ngnpope
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Aug 12, 2025
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Update
django.views.generic.edit.FormMixin.success_urlto_StrOrPromise | None, to allow usingreverse_lazy()as attribute value.Related issues
Closes #2768