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authorGuido van Rossum <guido@python.org>2007-05-08 21:26:54 (GMT)
committerGuido van Rossum <guido@python.org>2007-05-08 21:26:54 (GMT)
commitcfe5f20fe82806b85c971e43e18564e60108dd08 (patch)
tree0ddd21800971710d6decd02c0c6b867a153c8378 /Lib/pickle.py
parentf9e91c9c58de72afdf51f2a6ebfe50e98beeaa78 (diff)
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Got test_pickletools and test_pickle working.
(Alas, test_cpickle is still broken.)
Diffstat (limited to 'Lib/pickle.py')
-rw-r--r--Lib/pickle.py55
1 files changed, 30 insertions, 25 deletions
diff --git a/Lib/pickle.py b/Lib/pickle.py
index f976ffb..62658cb 100644
--- a/Lib/pickle.py
+++ b/Lib/pickle.py
@@ -465,7 +465,7 @@ class Pickler:
self.write(BININT1 + bytes([obj]))
return
if obj <= 0xffff:
- self.write(BININT2, bytes([obj&0xff, obj>>8]))
+ self.write(BININT2 + bytes([obj&0xff, obj>>8]))
return
# Next check for 4-byte signed ints:
high_bits = obj >> 31 # note that Python shift sign-extends
@@ -820,6 +820,7 @@ class Unpickler:
key = read(1)
if not key:
raise EOFError
+ assert isinstance(key, bytes)
dispatch[key[0]](self)
except _Stop as stopinst:
return stopinst.value
@@ -892,7 +893,7 @@ class Unpickler:
dispatch[BININT1[0]] = load_binint1
def load_binint2(self):
- self.append(mloads(b'i' + self.read(2) + '\000\000'))
+ self.append(mloads(b'i' + self.read(2) + b'\000\000'))
dispatch[BININT2[0]] = load_binint2
def load_long(self):
@@ -1111,7 +1112,7 @@ class Unpickler:
dispatch[DUP[0]] = load_dup
def load_get(self):
- self.append(self.memo[self.readline()[:-1]])
+ self.append(self.memo[str8(self.readline())[:-1]])
dispatch[GET[0]] = load_get
def load_binget(self):
@@ -1226,24 +1227,24 @@ def encode_long(x):
byte in the LONG1 pickling context.
>>> encode_long(0)
- ''
+ b''
>>> encode_long(255)
- '\xff\x00'
+ b'\xff\x00'
>>> encode_long(32767)
- '\xff\x7f'
+ b'\xff\x7f'
>>> encode_long(-256)
- '\x00\xff'
+ b'\x00\xff'
>>> encode_long(-32768)
- '\x00\x80'
+ b'\x00\x80'
>>> encode_long(-128)
- '\x80'
+ b'\x80'
>>> encode_long(127)
- '\x7f'
+ b'\x7f'
>>>
"""
if x == 0:
- return ''
+ return b''
if x > 0:
ashex = hex(x)
assert ashex.startswith("0x")
@@ -1284,24 +1285,24 @@ def encode_long(x):
ashex = ashex[2:]
assert len(ashex) & 1 == 0, (x, ashex)
binary = _binascii.unhexlify(ashex)
- return binary[::-1]
+ return bytes(binary[::-1])
def decode_long(data):
r"""Decode a long from a two's complement little-endian binary string.
- >>> decode_long('')
+ >>> decode_long(b'')
0
- >>> decode_long("\xff\x00")
+ >>> decode_long(b"\xff\x00")
255
- >>> decode_long("\xff\x7f")
+ >>> decode_long(b"\xff\x7f")
32767
- >>> decode_long("\x00\xff")
+ >>> decode_long(b"\x00\xff")
-256
- >>> decode_long("\x00\x80")
+ >>> decode_long(b"\x00\x80")
-32768
- >>> decode_long("\x80")
+ >>> decode_long(b"\x80")
-128
- >>> decode_long("\x7f")
+ >>> decode_long(b"\x7f")
127
"""
@@ -1310,7 +1311,7 @@ def decode_long(data):
return 0
ashex = _binascii.hexlify(data[::-1])
n = int(ashex, 16) # quadratic time before Python 2.3; linear now
- if data[-1] >= '\x80':
+ if data[-1] >= 0x80:
n -= 1 << (nbytes * 8)
return n
@@ -1320,15 +1321,19 @@ def dump(obj, file, protocol=None):
Pickler(file, protocol).dump(obj)
def dumps(obj, protocol=None):
- file = io.BytesIO()
- Pickler(file, protocol).dump(obj)
- return file.getvalue()
+ f = io.BytesIO()
+ Pickler(f, protocol).dump(obj)
+ res = f.getvalue()
+ assert isinstance(res, bytes)
+ return res
def load(file):
return Unpickler(file).load()
-def loads(str):
- file = io.BytesIO(str)
+def loads(s):
+ if isinstance(s, str):
+ raise TypeError("Can't load pickle from unicode string")
+ file = io.BytesIO(s)
return Unpickler(file).load()
# Doctest