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bpo-33138: Change standard error message for non-pickleable and non-copyable types. (GH-6239)

This commit is contained in:
Serhiy Storchaka 2018-10-31 02:28:07 +02:00 committed by GitHub
parent 3f819ca138
commit 0353b4eaaf
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
11 changed files with 17 additions and 91 deletions
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5
Lib/_pyio.py
View File

@ -814,8 +814,7 @@ class _BufferedIOMixin(BufferedIOBase):
return self.raw.mode
def __getstate__(self):
raise TypeError("can not serialize a '{0}' object"
.format(self.__class__.__name__))
raise TypeError(f"cannot pickle {self.__class__.__name__!r} object")
def __repr__(self):
modname = self.__class__.__module__
@ -1554,7 +1553,7 @@ class FileIO(RawIOBase):
self.close()
def __getstate__(self):
raise TypeError("cannot serialize '%s' object", self.__class__.__name__)
raise TypeError(f"cannot pickle {self.__class__.__name__!r} object")
def __repr__(self):
class_name = '%s.%s' % (self.__class__.__module__,

15
Lib/copyreg.py
View File

@ -53,7 +53,8 @@ _HEAPTYPE = 1<<9
def _reduce_ex(self, proto):
assert proto < 2
for base in self.__class__.__mro__:
cls = self.__class__
for base in cls.__mro__:
if hasattr(base, '__flags__') and not base.__flags__ & _HEAPTYPE:
break
else:
@ -61,16 +62,18 @@ def _reduce_ex(self, proto):
if base is object:
state = None
else:
if base is self.__class__:
raise TypeError("can't pickle %s objects" % base.__name__)
if base is cls:
raise TypeError(f"cannot pickle {cls.__name__!r} object")
state = base(self)
args = (self.__class__, base, state)
args = (cls, base, state)
try:
getstate = self.__getstate__
except AttributeError:
if getattr(self, "__slots__", None):
raise TypeError("a class that defines __slots__ without "
"defining __getstate__ cannot be pickled") from None
raise TypeError(f"cannot pickle {cls.__name__!r} object: "
f"a class that defines __slots__ without "
f"defining __getstate__ cannot be pickled "
f"with protocol {proto}") from None
try:
dict = self.__dict__
except AttributeError:

2
Lib/socket.py
View File

@ -189,7 +189,7 @@ class socket(_socket.socket):
return s
def __getstate__(self):
raise TypeError("Cannot serialize socket object")
raise TypeError(f"cannot pickle {self.__class__.__name__!r} object")
def dup(self):
"""dup() -> socket object

2
Misc/NEWS.d/next/Core and Builtins/2018-03-25-19-25-14.bpo-33138.aSqudH.rst Normal file
View File

@ -0,0 +1,2 @@
Changed standard error message for non-pickleable and non-copyable types. It
now says "cannot pickle" instead of "can't pickle" or "cannot serialize".

18
Modules/_bz2module.c
View File

@ -264,14 +264,6 @@ _bz2_BZ2Compressor_flush_impl(BZ2Compressor *self)
return result;
}
static PyObject *
BZ2Compressor_getstate(BZ2Compressor *self, PyObject *noargs)
{
PyErr_Format(PyExc_TypeError, "cannot serialize '%s' object",
Py_TYPE(self)->tp_name);
return NULL;
}
static void*
BZ2_Malloc(void* ctx, int items, int size)
{
@ -347,7 +339,6 @@ BZ2Compressor_dealloc(BZ2Compressor *self)
static PyMethodDef BZ2Compressor_methods[] = {
_BZ2_BZ2COMPRESSOR_COMPRESS_METHODDEF
_BZ2_BZ2COMPRESSOR_FLUSH_METHODDEF
{"__getstate__", (PyCFunction)BZ2Compressor_getstate, METH_NOARGS},
{NULL}
};
@ -612,14 +603,6 @@ _bz2_BZ2Decompressor_decompress_impl(BZ2Decompressor *self, Py_buffer *data,
return result;
}
static PyObject *
BZ2Decompressor_getstate(BZ2Decompressor *self, PyObject *noargs)
{
PyErr_Format(PyExc_TypeError, "cannot serialize '%s' object",
Py_TYPE(self)->tp_name);
return NULL;
}
/*[clinic input]
_bz2.BZ2Decompressor.__init__
@ -679,7 +662,6 @@ BZ2Decompressor_dealloc(BZ2Decompressor *self)
static PyMethodDef BZ2Decompressor_methods[] = {
_BZ2_BZ2DECOMPRESSOR_DECOMPRESS_METHODDEF
{"__getstate__", (PyCFunction)BZ2Decompressor_getstate, METH_NOARGS},
{NULL}
};

15
Modules/_io/bufferedio.c
View File

@ -608,16 +608,6 @@ buffered_isatty(buffered *self, PyObject *Py_UNUSED(ignored))
return PyObject_CallMethodObjArgs(self->raw, _PyIO_str_isatty, NULL);
}
/* Serialization */
static PyObject *
buffered_getstate(buffered *self, PyObject *Py_UNUSED(ignored))
{
PyErr_Format(PyExc_TypeError,
"cannot serialize '%s' object", Py_TYPE(self)->tp_name);
return NULL;
}
/* Forward decls */
static PyObject *
_bufferedwriter_flush_unlocked(buffered *);
@ -2394,7 +2384,6 @@ static PyMethodDef bufferedreader_methods[] = {
{"fileno", (PyCFunction)buffered_fileno, METH_NOARGS},
{"isatty", (PyCFunction)buffered_isatty, METH_NOARGS},
{"_dealloc_warn", (PyCFunction)buffered_dealloc_warn, METH_O},
{"__getstate__", (PyCFunction)buffered_getstate, METH_NOARGS},
_IO__BUFFERED_READ_METHODDEF
_IO__BUFFERED_PEEK_METHODDEF
@ -2485,7 +2474,6 @@ static PyMethodDef bufferedwriter_methods[] = {
{"fileno", (PyCFunction)buffered_fileno, METH_NOARGS},
{"isatty", (PyCFunction)buffered_isatty, METH_NOARGS},
{"_dealloc_warn", (PyCFunction)buffered_dealloc_warn, METH_O},
{"__getstate__", (PyCFunction)buffered_getstate, METH_NOARGS},
_IO_BUFFEREDWRITER_WRITE_METHODDEF
_IO__BUFFERED_TRUNCATE_METHODDEF
@ -2579,8 +2567,6 @@ static PyMethodDef bufferedrwpair_methods[] = {
{"close", (PyCFunction)bufferedrwpair_close, METH_NOARGS},
{"isatty", (PyCFunction)bufferedrwpair_isatty, METH_NOARGS},
{"__getstate__", (PyCFunction)buffered_getstate, METH_NOARGS},
{NULL, NULL}
};
@ -2652,7 +2638,6 @@ static PyMethodDef bufferedrandom_methods[] = {
{"fileno", (PyCFunction)buffered_fileno, METH_NOARGS},
{"isatty", (PyCFunction)buffered_isatty, METH_NOARGS},
{"_dealloc_warn", (PyCFunction)buffered_dealloc_warn, METH_O},
{"__getstate__", (PyCFunction)buffered_getstate, METH_NOARGS},
{"flush", (PyCFunction)buffered_flush, METH_NOARGS},

9
Modules/_io/fileio.c
View File

@ -1120,14 +1120,6 @@ _io_FileIO_isatty_impl(fileio *self)
return PyBool_FromLong(res);
}
static PyObject *
fileio_getstate(fileio *self, PyObject *Py_UNUSED(ignored))
{
PyErr_Format(PyExc_TypeError,
"cannot serialize '%s' object", Py_TYPE(self)->tp_name);
return NULL;
}
#include "clinic/fileio.c.h"
static PyMethodDef fileio_methods[] = {
@ -1145,7 +1137,6 @@ static PyMethodDef fileio_methods[] = {
_IO_FILEIO_FILENO_METHODDEF
_IO_FILEIO_ISATTY_METHODDEF
{"_dealloc_warn", (PyCFunction)fileio_dealloc_warn, METH_O, NULL},
{"__getstate__", (PyCFunction)fileio_getstate, METH_NOARGS, NULL},
{NULL, NULL} /* sentinel */
};

9
Modules/_io/textio.c
View File

@ -2891,14 +2891,6 @@ _io_TextIOWrapper_isatty_impl(textio *self)
return _PyObject_CallMethodId(self->buffer, &PyId_isatty, NULL);
}
static PyObject *
textiowrapper_getstate(textio *self, PyObject *args)
{
PyErr_Format(PyExc_TypeError,
"cannot serialize '%s' object", Py_TYPE(self)->tp_name);
return NULL;
}
/*[clinic input]
_io.TextIOWrapper.flush
[clinic start generated code]*/
@ -3132,7 +3124,6 @@ static PyMethodDef textiowrapper_methods[] = {
_IO_TEXTIOWRAPPER_READABLE_METHODDEF
_IO_TEXTIOWRAPPER_WRITABLE_METHODDEF
_IO_TEXTIOWRAPPER_ISATTY_METHODDEF
{"__getstate__", (PyCFunction)textiowrapper_getstate, METH_NOARGS},
_IO_TEXTIOWRAPPER_SEEK_METHODDEF
_IO_TEXTIOWRAPPER_TELL_METHODDEF

9
Modules/_io/winconsoleio.c
View File

@ -1060,14 +1060,6 @@ _io__WindowsConsoleIO_isatty_impl(winconsoleio *self)
Py_RETURN_TRUE;
}
static PyObject *
winconsoleio_getstate(winconsoleio *self, PyObject *Py_UNUSED(ignored))
{
PyErr_Format(PyExc_TypeError,
"cannot serialize '%s' object", Py_TYPE(self)->tp_name);
return NULL;
}
#include "clinic/winconsoleio.c.h"
static PyMethodDef winconsoleio_methods[] = {
@ -1080,7 +1072,6 @@ static PyMethodDef winconsoleio_methods[] = {
_IO__WINDOWSCONSOLEIO_WRITABLE_METHODDEF
_IO__WINDOWSCONSOLEIO_FILENO_METHODDEF
_IO__WINDOWSCONSOLEIO_ISATTY_METHODDEF
{"__getstate__", (PyCFunction)winconsoleio_getstate, METH_NOARGS, NULL},
{NULL, NULL} /* sentinel */
};

18
Modules/_lzmamodule.c
View File

@ -591,14 +591,6 @@ _lzma_LZMACompressor_flush_impl(Compressor *self)
return result;
}
static PyObject *
Compressor_getstate(Compressor *self, PyObject *noargs)
{
PyErr_Format(PyExc_TypeError, "cannot serialize '%s' object",
Py_TYPE(self)->tp_name);
return NULL;
}
static int
Compressor_init_xz(lzma_stream *lzs, int check, uint32_t preset,
PyObject *filterspecs)
@ -794,7 +786,6 @@ Compressor_dealloc(Compressor *self)
static PyMethodDef Compressor_methods[] = {
_LZMA_LZMACOMPRESSOR_COMPRESS_METHODDEF
_LZMA_LZMACOMPRESSOR_FLUSH_METHODDEF
{"__getstate__", (PyCFunction)Compressor_getstate, METH_NOARGS},
{NULL}
};
@ -1078,14 +1069,6 @@ _lzma_LZMADecompressor_decompress_impl(Decompressor *self, Py_buffer *data,
return result;
}
static PyObject *
Decompressor_getstate(Decompressor *self, PyObject *noargs)
{
PyErr_Format(PyExc_TypeError, "cannot serialize '%s' object",
Py_TYPE(self)->tp_name);
return NULL;
}
static int
Decompressor_init_raw(lzma_stream *lzs, PyObject *filterspecs)
{
@ -1235,7 +1218,6 @@ Decompressor_dealloc(Decompressor *self)
static PyMethodDef Decompressor_methods[] = {
_LZMA_LZMADECOMPRESSOR_DECOMPRESS_METHODDEF
{"__getstate__", (PyCFunction)Decompressor_getstate, METH_NOARGS},
{NULL}
};

6
Objects/typeobject.c
View File

@ -4122,7 +4122,7 @@ _PyObject_GetState(PyObject *obj, int required)
if (required && obj->ob_type->tp_itemsize) {
PyErr_Format(PyExc_TypeError,
"can't pickle %.200s objects",
"cannot pickle '%.200s' object",
Py_TYPE(obj)->tp_name);
return NULL;
}
@ -4163,7 +4163,7 @@ _PyObject_GetState(PyObject *obj, int required)
Py_DECREF(slotnames);
Py_DECREF(state);
PyErr_Format(PyExc_TypeError,
"can't pickle %.200s objects",
"cannot pickle '%.200s' object",
Py_TYPE(obj)->tp_name);
return NULL;
}
@ -4400,7 +4400,7 @@ reduce_newobj(PyObject *obj)
if (Py_TYPE(obj)->tp_new == NULL) {
PyErr_Format(PyExc_TypeError,
"can't pickle %.200s objects",
"cannot pickle '%.200s' object",
Py_TYPE(obj)->tp_name);
return NULL;
}