mirror of https://github.com/python/cpython
#17806: Added keyword-argument support for "tabsize" to str/bytes.expandtabs().
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@ -1523,7 +1523,7 @@ expression support in the :mod:`re` module).
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at that position.
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.. method:: str.expandtabs([tabsize])
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.. method:: str.expandtabs(tabsize=8)
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Return a copy of the string where all tab characters are replaced by one or
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more spaces, depending on the current column and the given tab size. Tab
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@ -160,14 +160,20 @@ class MixinBytesBufferCommonTests(object):
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self.marshal(b'abc\rab\tdef\ng\thi').expandtabs(8))
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self.assertEqual(b'abc\rab def\ng hi',
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self.marshal(b'abc\rab\tdef\ng\thi').expandtabs(4))
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self.assertEqual(b'abc\r\nab def\ng hi',
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self.marshal(b'abc\r\nab\tdef\ng\thi').expandtabs())
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self.assertEqual(b'abc\r\nab def\ng hi',
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self.marshal(b'abc\r\nab\tdef\ng\thi').expandtabs(8))
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self.assertEqual(b'abc\r\nab def\ng hi',
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self.marshal(b'abc\r\nab\tdef\ng\thi').expandtabs(4))
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self.assertEqual(b'abc\rab def\ng hi',
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self.marshal(b'abc\rab\tdef\ng\thi').expandtabs())
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self.assertEqual(b'abc\rab def\ng hi',
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self.marshal(b'abc\rab\tdef\ng\thi').expandtabs(8))
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self.assertEqual(b'abc\r\nab\r\ndef\ng\r\nhi',
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self.marshal(b'abc\r\nab\r\ndef\ng\r\nhi').expandtabs(4))
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self.marshal(b'abc\r\nab\r\ndef\ng\r\nhi').expandtabs(4))
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# check keyword args
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self.assertEqual(b'abc\rab def\ng hi',
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self.marshal(b'abc\rab\tdef\ng\thi').expandtabs(tabsize=8))
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self.assertEqual(b'abc\rab def\ng hi',
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self.marshal(b'abc\rab\tdef\ng\thi').expandtabs(tabsize=4))
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self.assertEqual(b' a\n b', self.marshal(b' \ta\n\tb').expandtabs(1))
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self.assertRaises(TypeError, self.marshal(b'hello').expandtabs, 42, 42)
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@ -328,13 +328,26 @@ class BaseTest:
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self.checkraises(TypeError, 'hello', 'upper', 42)
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def test_expandtabs(self):
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self.checkequal('abc\rab def\ng hi', 'abc\rab\tdef\ng\thi', 'expandtabs')
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self.checkequal('abc\rab def\ng hi', 'abc\rab\tdef\ng\thi', 'expandtabs', 8)
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self.checkequal('abc\rab def\ng hi', 'abc\rab\tdef\ng\thi', 'expandtabs', 4)
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self.checkequal('abc\r\nab def\ng hi', 'abc\r\nab\tdef\ng\thi', 'expandtabs', 4)
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self.checkequal('abc\rab def\ng hi', 'abc\rab\tdef\ng\thi', 'expandtabs')
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self.checkequal('abc\rab def\ng hi', 'abc\rab\tdef\ng\thi', 'expandtabs', 8)
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self.checkequal('abc\r\nab\r\ndef\ng\r\nhi', 'abc\r\nab\r\ndef\ng\r\nhi', 'expandtabs', 4)
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self.checkequal('abc\rab def\ng hi', 'abc\rab\tdef\ng\thi',
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'expandtabs')
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self.checkequal('abc\rab def\ng hi', 'abc\rab\tdef\ng\thi',
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'expandtabs', 8)
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self.checkequal('abc\rab def\ng hi', 'abc\rab\tdef\ng\thi',
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'expandtabs', 4)
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self.checkequal('abc\r\nab def\ng hi', 'abc\r\nab\tdef\ng\thi',
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'expandtabs')
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self.checkequal('abc\r\nab def\ng hi', 'abc\r\nab\tdef\ng\thi',
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'expandtabs', 8)
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self.checkequal('abc\r\nab def\ng hi', 'abc\r\nab\tdef\ng\thi',
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'expandtabs', 4)
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self.checkequal('abc\r\nab\r\ndef\ng\r\nhi', 'abc\r\nab\r\ndef\ng\r\nhi',
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'expandtabs', 4)
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# check keyword args
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self.checkequal('abc\rab def\ng hi', 'abc\rab\tdef\ng\thi',
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'expandtabs', tabsize=8)
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self.checkequal('abc\rab def\ng hi', 'abc\rab\tdef\ng\thi',
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'expandtabs', tabsize=4)
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self.checkequal(' a\n b', ' \ta\n\tb', 'expandtabs', 1)
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self.checkraises(TypeError, 'hello', 'expandtabs', 42, 42)
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@ -10,6 +10,9 @@ Projected release date: 2013-11-24
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Core and Builtins
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-----------------
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- Issue #17806: Added keyword-argument support for "tabsize" to
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str/bytes.expandtabs().
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- Issue #17828: Output type errors in str.encode(), bytes.decode() and
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bytearray.decode() now direct users to codecs.encode() or codecs.decode()
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as appropriate.
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@ -2805,7 +2805,7 @@ bytearray_methods[] = {
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{"count", (PyCFunction)bytearray_count, METH_VARARGS, count__doc__},
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{"decode", (PyCFunction)bytearray_decode, METH_VARARGS | METH_KEYWORDS, decode_doc},
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{"endswith", (PyCFunction)bytearray_endswith, METH_VARARGS, endswith__doc__},
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{"expandtabs", (PyCFunction)stringlib_expandtabs, METH_VARARGS,
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{"expandtabs", (PyCFunction)stringlib_expandtabs, METH_VARARGS | METH_KEYWORDS,
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expandtabs__doc__},
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{"extend", (PyCFunction)bytearray_extend, METH_O, extend__doc__},
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{"find", (PyCFunction)bytearray_find, METH_VARARGS, find__doc__},
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@ -2389,7 +2389,7 @@ bytes_methods[] = {
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{"decode", (PyCFunction)bytes_decode, METH_VARARGS | METH_KEYWORDS, decode__doc__},
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{"endswith", (PyCFunction)bytes_endswith, METH_VARARGS,
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endswith__doc__},
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{"expandtabs", (PyCFunction)stringlib_expandtabs, METH_VARARGS,
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{"expandtabs", (PyCFunction)stringlib_expandtabs, METH_VARARGS | METH_KEYWORDS,
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expandtabs__doc__},
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{"find", (PyCFunction)bytes_find, METH_VARARGS, find__doc__},
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{"fromhex", (PyCFunction)bytes_fromhex, METH_VARARGS|METH_CLASS,
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@ -5,21 +5,23 @@
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shared code in bytes_methods.c to cut down on duplicate code bloat. */
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PyDoc_STRVAR(expandtabs__doc__,
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"B.expandtabs([tabsize]) -> copy of B\n\
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"B.expandtabs(tabsize=8) -> copy of B\n\
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\n\
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Return a copy of B where all tab characters are expanded using spaces.\n\
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If tabsize is not given, a tab size of 8 characters is assumed.");
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static PyObject*
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stringlib_expandtabs(PyObject *self, PyObject *args)
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stringlib_expandtabs(PyObject *self, PyObject *args, PyObject *kwds)
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{
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const char *e, *p;
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char *q;
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size_t i, j;
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PyObject *u;
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static char *kwlist[] = {"tabsize", 0};
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int tabsize = 8;
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if (!PyArg_ParseTuple(args, "|i:expandtabs", &tabsize))
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if (!PyArg_ParseTupleAndKeywords(args, kwds, "|i:expandtabs",
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kwlist, &tabsize))
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return NULL;
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/* First pass: determine size of output string */
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@ -11010,23 +11010,25 @@ unicode_encode(PyObject *self, PyObject *args, PyObject *kwargs)
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}
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PyDoc_STRVAR(expandtabs__doc__,
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"S.expandtabs([tabsize]) -> str\n\
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"S.expandtabs(tabsize=8) -> str\n\
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\n\
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Return a copy of S where all tab characters are expanded using spaces.\n\
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If tabsize is not given, a tab size of 8 characters is assumed.");
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static PyObject*
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unicode_expandtabs(PyObject *self, PyObject *args)
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unicode_expandtabs(PyObject *self, PyObject *args, PyObject *kwds)
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{
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Py_ssize_t i, j, line_pos, src_len, incr;
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Py_UCS4 ch;
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PyObject *u;
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void *src_data, *dest_data;
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static char *kwlist[] = {"tabsize", 0};
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int tabsize = 8;
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int kind;
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int found;
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if (!PyArg_ParseTuple(args, "|i:expandtabs", &tabsize))
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if (!PyArg_ParseTupleAndKeywords(args, kwds, "|i:expandtabs",
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kwlist, &tabsize))
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return NULL;
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if (PyUnicode_READY(self) == -1)
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@ -13394,7 +13396,8 @@ static PyMethodDef unicode_methods[] = {
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{"title", (PyCFunction) unicode_title, METH_NOARGS, title__doc__},
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{"center", (PyCFunction) unicode_center, METH_VARARGS, center__doc__},
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{"count", (PyCFunction) unicode_count, METH_VARARGS, count__doc__},
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{"expandtabs", (PyCFunction) unicode_expandtabs, METH_VARARGS, expandtabs__doc__},
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{"expandtabs", (PyCFunction) unicode_expandtabs,
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METH_VARARGS | METH_KEYWORDS, expandtabs__doc__},
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{"find", (PyCFunction) unicode_find, METH_VARARGS, find__doc__},
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{"partition", (PyCFunction) unicode_partition, METH_O, partition__doc__},
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{"index", (PyCFunction) unicode_index, METH_VARARGS, index__doc__},
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@ -13406,7 +13409,8 @@ static PyMethodDef unicode_methods[] = {
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{"rjust", (PyCFunction) unicode_rjust, METH_VARARGS, rjust__doc__},
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{"rstrip", (PyCFunction) unicode_rstrip, METH_VARARGS, rstrip__doc__},
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{"rpartition", (PyCFunction) unicode_rpartition, METH_O, rpartition__doc__},
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{"splitlines", (PyCFunction) unicode_splitlines, METH_VARARGS | METH_KEYWORDS, splitlines__doc__},
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{"splitlines", (PyCFunction) unicode_splitlines,
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METH_VARARGS | METH_KEYWORDS, splitlines__doc__},
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{"strip", (PyCFunction) unicode_strip, METH_VARARGS, strip__doc__},
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{"swapcase", (PyCFunction) unicode_swapcase, METH_NOARGS, swapcase__doc__},
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{"translate", (PyCFunction) unicode_translate, METH_O, translate__doc__},
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