Python _pickle 模块,Pickler() 实例源码

我们从Python开源项目中,提取了以下10个代码示例,用于说明如何使用_pickle.Pickler()

项目:ouroboros    作者:pybee    | 项目源码 | 文件源码
def test_pickler(self):
            basesize = support.calcobjsize('5P2n3i2n3iP')
            p = _pickle.Pickler(io.BytesIO())
            self.assertEqual(object.__sizeof__(p), basesize)
            MT_size = struct.calcsize('3nP0n')
            ME_size = struct.calcsize('Pn0P')
            check = self.check_sizeof
            check(p, basesize +
                MT_size + 8 * ME_size +  # Minimal memo table size.
                sys.getsizeof(b'x'*4096))  # Minimal write buffer size.
            for i in range(6):
                p.dump(chr(i))
            check(p, basesize +
                MT_size + 32 * ME_size +  # Size of memo table required to
                                          # save references to 6 objects.
                0)  # Write buffer is cleared after every dump().
项目:ouroboros    作者:pybee    | 项目源码 | 文件源码
def test_signature_on_builtin_class(self):
        self.assertEqual(str(inspect.signature(_pickle.Pickler)),
                         '(file, protocol=None, fix_imports=True)')

        class P(_pickle.Pickler): pass
        class EmptyTrait: pass
        class P2(EmptyTrait, P): pass
        self.assertEqual(str(inspect.signature(P)),
                         '(file, protocol=None, fix_imports=True)')
        self.assertEqual(str(inspect.signature(P2)),
                         '(file, protocol=None, fix_imports=True)')

        class P3(P2):
            def __init__(self, spam):
                pass
        self.assertEqual(str(inspect.signature(P3)), '(spam)')

        class MetaP(type):
            def __call__(cls, foo, bar):
                pass
        class P4(P2, metaclass=MetaP):
            pass
        self.assertEqual(str(inspect.signature(P4)), '(foo, bar)')
项目:kbe_server    作者:xiaohaoppy    | 项目源码 | 文件源码
def test_signature_on_builtin_class(self):
        self.assertEqual(str(inspect.signature(_pickle.Pickler)),
                         '(file, protocol=None, fix_imports=True)')

        class P(_pickle.Pickler): pass
        class EmptyTrait: pass
        class P2(EmptyTrait, P): pass
        self.assertEqual(str(inspect.signature(P)),
                         '(file, protocol=None, fix_imports=True)')
        self.assertEqual(str(inspect.signature(P2)),
                         '(file, protocol=None, fix_imports=True)')

        class P3(P2):
            def __init__(self, spam):
                pass
        self.assertEqual(str(inspect.signature(P3)), '(spam)')

        class MetaP(type):
            def __call__(cls, foo, bar):
                pass
        class P4(P2, metaclass=MetaP):
            pass
        self.assertEqual(str(inspect.signature(P4)), '(foo, bar)')
项目:ouroboros    作者:pybee    | 项目源码 | 文件源码
def test_unbound_builtin_method(self):
        self.assertEqual(self._get_summary_line(_pickle.Pickler.dump),
            "dump(self, obj, /)")

    # these no longer include "self"
项目:ouroboros    作者:pybee    | 项目源码 | 文件源码
def test_bound_builtin_method(self):
        s = StringIO()
        p = _pickle.Pickler(s)
        self.assertEqual(self._get_summary_line(p.dump),
            "dump(obj, /) method of _pickle.Pickler instance")

    # this should *never* include self!
项目:ouroboros    作者:pybee    | 项目源码 | 文件源码
def test_getfullargspec_builtin_methods(self):
        self.assertFullArgSpecEquals(_pickle.Pickler.dump,
                                     args_e=['self', 'obj'], formatted='(self, obj)')

        self.assertFullArgSpecEquals(_pickle.Pickler(io.BytesIO()).dump,
                                     args_e=['self', 'obj'], formatted='(self, obj)')

        self.assertFullArgSpecEquals(
             os.stat,
             args_e=['path'],
             kwonlyargs_e=['dir_fd', 'follow_symlinks'],
             kwonlydefaults_e={'dir_fd': None, 'follow_symlinks': True},
             formatted='(path, *, dir_fd=None, follow_symlinks=True)')
项目:autoxd    作者:nessessary    | 项目源码 | 文件源码
def serial(result, fname = "temp.bin"):
        if charade.detect(fname)['encoding'] == 'utf-8':
            fname = convert(fname)

        root_dir = os.path.dirname(__file__)
        fname = root_dir + "\\" +fname            
        f = open(fname,"wb")        
        p = cPickle.Pickler(f)
        p.clear_memo()
        p.fast = True
        p.dump(result)
        f.close()
项目:kbe_server    作者:xiaohaoppy    | 项目源码 | 文件源码
def test_unbound_builtin_method(self):
        self.assertEqual(self._get_summary_line(_pickle.Pickler.dump),
            "dump(self, obj, /)")

    # these no longer include "self"
项目:kbe_server    作者:xiaohaoppy    | 项目源码 | 文件源码
def test_bound_builtin_method(self):
        s = StringIO()
        p = _pickle.Pickler(s)
        self.assertEqual(self._get_summary_line(p.dump),
            "dump(obj, /) method of _pickle.Pickler instance")

    # this should *never* include self!
项目:kbe_server    作者:xiaohaoppy    | 项目源码 | 文件源码
def test_getfullargspec_builtin_methods(self):
        self.assertFullArgSpecEquals(_pickle.Pickler.dump,
                                     args_e=['self', 'obj'], formatted='(self, obj)')

        self.assertFullArgSpecEquals(_pickle.Pickler(io.BytesIO()).dump,
                                     args_e=['self', 'obj'], formatted='(self, obj)')

        self.assertFullArgSpecEquals(
             os.stat,
             args_e=['path'],
             kwonlyargs_e=['dir_fd', 'follow_symlinks'],
             kwonlydefaults_e={'dir_fd': None, 'follow_symlinks': True},
             formatted='(path, *, dir_fd=None, follow_symlinks=True)')