Fix the custom build hook when using dynamic dependencies (#1338)

pypa · Mar 19, 2024 · 04010be · 04010be
1 parent 67a4bf5
commit 04010be
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Showing 2 changed files with 13 additions and 3 deletions.
diff --git a/backend/src/hatchling/builders/config.py b/backend/src/hatchling/builders/config.py
@@ -668,9 +668,15 @@ def dynamic_dependencies(self) -> list[str]:
             if build_hook_cls is None:
                 continue
 
-            build_hook = build_hook_cls(
-                self.root, config, self, self.builder.metadata, '', self.builder.PLUGIN_NAME, self.builder.app
-            )
+            # Hook exists but dynamic dependencies are not imported lazily.
+            # This happens for example when using the `custom` build hook.
+            try:
+                build_hook = build_hook_cls(
+                    self.root, config, self, self.builder.metadata, '', self.builder.PLUGIN_NAME, self.builder.app
+                )
+            except ImportError:
+                continue
+
             dependencies.extend(build_hook.dependencies())
 
         return dependencies

diff --git a/docs/history/hatchling.md b/docs/history/hatchling.md
@@ -8,6 +8,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## Unreleased
 
+***Fixed:***
+
+- Fix the `custom` build hook when using dynamic dependencies
+
 ## [1.22.2](https://github.com/pypa/hatch/releases/tag/hatchling-v1.22.2) - 2024-03-16 ## {: #hatchling-v1.22.2 }
 
 ***Fixed:***