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#14897: Enhance error messages of struct.pack and struct.pack_into

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Patch by Matti Mäki.
This commit is contained in:
Petri Lehtinen 2012-10-29 21:26:56 +02:00
commit f1380557e3
3 changed files with 18 additions and 4 deletions
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1
Misc/ACKS
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@ -820,6 +820,7 @@ Michael Muller
Neil Muller Neil Muller
Louis Munro Louis Munro
R. David Murray R. David Murray
Matti Mäki
Dale Nagata Dale Nagata
John Nagle John Nagle
Takahiro Nakayama Takahiro Nakayama

3
Misc/NEWS
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@ -62,6 +62,9 @@ Core and Builtins
Library Library
------- -------
- Issue #14897: Enhance error messages of struct.pack and
struct.pack_into. Patch by Matti Mäki.
- Issue #16316: mimetypes now recognizes the .xz and .txz (.tar.xz) extensions. - Issue #16316: mimetypes now recognizes the .xz and .txz (.tar.xz) extensions.
Patch by Serhiy Storchaka. Patch by Serhiy Storchaka.

18
Modules/_struct.c
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@ -1661,7 +1661,7 @@ s_pack(PyObject *self, PyObject *args)
if (PyTuple_GET_SIZE(args) != soself->s_len) if (PyTuple_GET_SIZE(args) != soself->s_len)
{ {
PyErr_Format(StructError, PyErr_Format(StructError,
"pack requires exactly %zd arguments", soself->s_len); "pack expected %zd items for packing (got %zd)", soself->s_len, PyTuple_GET_SIZE(args));
return NULL; return NULL;
} }
@ -1700,9 +1700,19 @@ s_pack_into(PyObject *self, PyObject *args)
assert(soself->s_codes != NULL); assert(soself->s_codes != NULL);
if (PyTuple_GET_SIZE(args) != (soself->s_len + 2)) if (PyTuple_GET_SIZE(args) != (soself->s_len + 2))
{ {
PyErr_Format(StructError, if (PyTuple_GET_SIZE(args) == 0) {
"pack_into requires exactly %zd arguments", PyErr_Format(StructError,
(soself->s_len + 2)); "pack_into expected buffer argument");
}
else if (PyTuple_GET_SIZE(args) == 1) {
PyErr_Format(StructError,
"pack_into expected offset argument");
}
else {
PyErr_Format(StructError,
"pack_into expected %zd items for packing (got %zd)",
soself->s_len, (PyTuple_GET_SIZE(args) - 2));
}
return NULL; return NULL;
} }