diff options
Diffstat (limited to 'Lib/pickle.py')
| -rw-r--r-- | Lib/pickle.py | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/Lib/pickle.py b/Lib/pickle.py index dffdc2c..6045c84 100644 --- a/Lib/pickle.py +++ b/Lib/pickle.py @@ -158,6 +158,9 @@ del x _quotes = ["'", '"'] + +# Pickling machinery + class Pickler: def __init__(self, file, proto=1): @@ -178,11 +181,11 @@ class Pickler: object, or any other custom object that meets this interface. """ - if not 0 <= proto <= 2: + if proto not in (0, 1, 2): raise ValueError, "pickle protocol must be 0, 1 or 2" self.write = file.write self.memo = {} - self.proto = proto + self.proto = int(proto) self.bin = proto >= 1 def clear_memo(self): @@ -639,6 +642,7 @@ class Pickler: dispatch[BuiltinFunctionType] = save_global dispatch[TypeType] = save_global +# Pickling helpers def _keep_alive(x, memo): """Keeps a reference to the object x in the memo. @@ -683,6 +687,8 @@ def whichmodule(func, funcname): return name +# Unpickling machinery + class Unpickler: def __init__(self, file): |