copy

1 files changed, 26 insertions, 0 deletions

diff --git a/basics/opt/deep_copy_opt.py b/basics/opt/deep_copy_opt.py
new file mode 100644
index 0000000..d537b15
--- /dev/null
+++ b/basics/opt/deep_copy_opt.py
@@ -0,0 +1,26 @@
+
+_dispatcher = {}
+
+def _copy_list(_l):
+    ret = _l.copy()
+    for idx, item in enumerate(ret):
+        cp = _dispatcher.get(type(item))
+        if cp is not None:
+            ret[idx] = cp(item)
+    return ret
+_dispatcher[list] = _copy_list
+
+def _copy_dict(d):
+    ret = d.copy()
+    for key, value in ret.items():
+        cp = _dispatcher.get(type(value))
+        if cp is not None:
+            ret[key] = cp(value)
+
+    return ret
+_dispatcher[dict] = _copy_dict
+
+
+if __name__ == '__main__':
+    l = [1, 2, 3]
+    _copy_list(l)
\ No newline at end of file