diff --git a/src/commands/import.ts b/src/commands/import.ts
index b6aad919b..d9b160a4d 100644
--- a/src/commands/import.ts
+++ b/src/commands/import.ts
@@ -610,7 +610,7 @@ export function collectSyncableFiles(dir: string, opts: CollectOpts = {}): strin
       // Descent-time prune through the canonical gate (single source of truth
       // in core/sync.ts) instead of a hand-maintained inline list that drifted
       // from it. Skips hidden dirs (`.git`, `.raw`, etc.), `node_modules`,
-      // `vendor`, `dist`, `build`, `ops`, and git submodules.
+      // `vendor`, `dist`, `build`, `venv` (#2020), `ops`, and git submodules.
       if (!pruneDir(entry, d)) continue;
 
       const full = join(d, entry);
diff --git a/src/core/sync.ts b/src/core/sync.ts
index 902280309..c2c46a2e1 100644
--- a/src/core/sync.ts
+++ b/src/core/sync.ts
@@ -249,6 +249,11 @@ const PRUNE_DIR_NAMES = new Set<string>([
   'vendor',
   'dist',
   'build',
+  // Python venv: vendored dependency tree, the `node_modules` analogue (#2020).
+  // Like `node_modules` it lacks a leading dot so isSyncable's dot-prefix
+  // exclusion misses it; explicit entry keeps incremental sync consistent
+  // with the first-sync walker in commands/import.ts.
+  'venv',
   '.raw',
   'ops',
 ]);