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Using marshal functions to pack & unpack 1-byte ints is an obscure &

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expensive way to spell chr() and ord().
This commit is contained in:
Tim Peters
2003-01-27 21:15:36 +00:00
parent 22a449aacc
commit bbf63cd05c
1 changed files with 10 additions and 11 deletions
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21
Lib/pickle.py
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@@ -366,12 +366,11 @@ class Pickler:
def save_string(self, object):
if self.bin:
l = len(object)
s = mdumps(l)[1:]
if l < 256:
self.write(SHORT_BINSTRING + s[0] + object)
n = len(object)
if n < 256:
self.write(SHORT_BINSTRING + chr(n) + object)
else:
self.write(BINSTRING + s + object)
self.write(BINSTRING + mdumps(n)[1:] + object)
else:
self.write(STRING + `object` + '\n')
self.memoize(object)
@@ -380,8 +379,8 @@ class Pickler:
def save_unicode(self, object):
if self.bin:
encoding = object.encode('utf-8')
l = len(encoding)
s = mdumps(l)[1:]
n = len(encoding)
s = mdumps(n)[1:]
self.write(BINUNICODE + s + encoding)
else:
object = object.replace("\\", "\\u005c")
@@ -716,7 +715,7 @@ class Unpickler:
dispatch[BININT] = load_binint
def load_binint1(self):
self.append(mloads('i' + self.read(1) + '\000\000\000'))
self.append(ord(self.read(1)))
dispatch[BININT1] = load_binint1
def load_binint2(self):
@@ -800,7 +799,7 @@ class Unpickler:
dispatch[BINUNICODE] = load_binunicode
def load_short_binstring(self):
len = mloads('i' + self.read(1) + '\000\000\000')
len = ord(self.read(1))
self.append(self.read(len))
dispatch[SHORT_BINSTRING] = load_short_binstring
@@ -950,7 +949,7 @@ class Unpickler:
dispatch[GET] = load_get
def load_binget(self):
i = mloads('i' + self.read(1) + '\000\000\000')
i = ord(self.read(1))
self.append(self.memo[`i`])
dispatch[BINGET] = load_binget
@@ -964,7 +963,7 @@ class Unpickler:
dispatch[PUT] = load_put
def load_binput(self):
i = mloads('i' + self.read(1) + '\000\000\000')
i = ord(self.read(1))
self.memo[`i`] = self.stack[-1]
dispatch[BINPUT] = load_binput