diff options
Diffstat (limited to 'Lib/copy.py')
| -rw-r--r-- | Lib/copy.py | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/Lib/copy.py b/Lib/copy.py index bb8840ed54..3a45fdf49b 100644 --- a/Lib/copy.py +++ b/Lib/copy.py @@ -94,7 +94,7 @@ def copy(x): else: reductor = getattr(x, "__reduce_ex__", None) if reductor: - rv = reductor(2) + rv = reductor(4) else: reductor = getattr(x, "__reduce__", None) if reductor: @@ -171,7 +171,7 @@ def deepcopy(x, memo=None, _nil=[]): else: reductor = getattr(x, "__reduce_ex__", None) if reductor: - rv = reductor(2) + rv = reductor(4) else: reductor = getattr(x, "__reduce__", None) if reductor: @@ -221,17 +221,15 @@ def _deepcopy_list(x, memo): d[list] = _deepcopy_list def _deepcopy_tuple(x, memo): - y = [] - for a in x: - y.append(deepcopy(a, memo)) + y = [deepcopy(a, memo) for a in x] # We're not going to put the tuple in the memo, but it's still important we # check for it, in case the tuple contains recursive mutable structures. try: return memo[id(x)] except KeyError: pass - for i in range(len(x)): - if x[i] is not y[i]: + for k, j in zip(x, y): + if k is not j: y = tuple(y) break else: |