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bpo-34197: Make _csv.Dialect attributes booleans. (GH-8440) 

Attributes skipinitialspace, doublequote and strict are now
booleans instead of integers 0 or 1.
This commit is contained in:
Serhiy Storchaka 2018-07-26 13:21:09 +03:00 committed by GitHub
parent ecf411c59e
commit 323748ad74
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3 changed files with 38 additions and 36 deletions
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40
Lib/test/test_csv.py
View File

@ -48,13 +48,13 @@ class Test_Csv(unittest.TestCase):
obj = ctor(*args) obj = ctor(*args)
# Check defaults # Check defaults
self.assertEqual(obj.dialect.delimiter, ',') self.assertEqual(obj.dialect.delimiter, ',')
self.assertEqual(obj.dialect.doublequote, True) self.assertIs(obj.dialect.doublequote, True)
self.assertEqual(obj.dialect.escapechar, None) self.assertEqual(obj.dialect.escapechar, None)
self.assertEqual(obj.dialect.lineterminator, "\r\n") self.assertEqual(obj.dialect.lineterminator, "\r\n")
self.assertEqual(obj.dialect.quotechar, '"') self.assertEqual(obj.dialect.quotechar, '"')
self.assertEqual(obj.dialect.quoting, csv.QUOTE_MINIMAL) self.assertEqual(obj.dialect.quoting, csv.QUOTE_MINIMAL)
self.assertEqual(obj.dialect.skipinitialspace, False) self.assertIs(obj.dialect.skipinitialspace, False)
self.assertEqual(obj.dialect.strict, False) self.assertIs(obj.dialect.strict, False)
# Try deleting or changing attributes (they are read-only) # Try deleting or changing attributes (they are read-only)
self.assertRaises(AttributeError, delattr, obj.dialect, 'delimiter') self.assertRaises(AttributeError, delattr, obj.dialect, 'delimiter')
self.assertRaises(AttributeError, setattr, obj.dialect, 'delimiter', ':') self.assertRaises(AttributeError, setattr, obj.dialect, 'delimiter', ':')
@ -76,13 +76,13 @@ class Test_Csv(unittest.TestCase):
strict=True) strict=True)
obj = ctor(*args, **kwargs) obj = ctor(*args, **kwargs)
self.assertEqual(obj.dialect.delimiter, ':') self.assertEqual(obj.dialect.delimiter, ':')
self.assertEqual(obj.dialect.doublequote, False) self.assertIs(obj.dialect.doublequote, False)
self.assertEqual(obj.dialect.escapechar, '\\') self.assertEqual(obj.dialect.escapechar, '\\')
self.assertEqual(obj.dialect.lineterminator, "\r") self.assertEqual(obj.dialect.lineterminator, "\r")
self.assertEqual(obj.dialect.quotechar, '*') self.assertEqual(obj.dialect.quotechar, '*')
self.assertEqual(obj.dialect.quoting, csv.QUOTE_NONE) self.assertEqual(obj.dialect.quoting, csv.QUOTE_NONE)
self.assertEqual(obj.dialect.skipinitialspace, True) self.assertIs(obj.dialect.skipinitialspace, True)
self.assertEqual(obj.dialect.strict, True) self.assertIs(obj.dialect.strict, True)
def test_reader_kw_attrs(self): def test_reader_kw_attrs(self):
self._test_kw_attrs(csv.reader, []) self._test_kw_attrs(csv.reader, [])
@ -104,13 +104,13 @@ class Test_Csv(unittest.TestCase):
args = args + (dialect,) args = args + (dialect,)
obj = ctor(*args) obj = ctor(*args)
self.assertEqual(obj.dialect.delimiter, '-') self.assertEqual(obj.dialect.delimiter, '-')
self.assertEqual(obj.dialect.doublequote, False) self.assertIs(obj.dialect.doublequote, False)
self.assertEqual(obj.dialect.escapechar, '^') self.assertEqual(obj.dialect.escapechar, '^')
self.assertEqual(obj.dialect.lineterminator, "$") self.assertEqual(obj.dialect.lineterminator, "$")
self.assertEqual(obj.dialect.quotechar, '#') self.assertEqual(obj.dialect.quotechar, '#')
self.assertEqual(obj.dialect.quoting, csv.QUOTE_ALL) self.assertEqual(obj.dialect.quoting, csv.QUOTE_ALL)
self.assertEqual(obj.dialect.skipinitialspace, True) self.assertIs(obj.dialect.skipinitialspace, True)
self.assertEqual(obj.dialect.strict, False) self.assertIs(obj.dialect.strict, False)
def test_reader_dialect_attrs(self): def test_reader_dialect_attrs(self):
self._test_dialect_attrs(csv.reader, []) self._test_dialect_attrs(csv.reader, [])
@ -976,15 +976,13 @@ Stonecutters Seafood and Chop House+ Lemont+ IL+ 12/19/02+ Week Back
def test_has_header(self): def test_has_header(self):
sniffer = csv.Sniffer() sniffer = csv.Sniffer()
self.assertEqual(sniffer.has_header(self.sample1), False) self.assertIs(sniffer.has_header(self.sample1), False)
self.assertEqual(sniffer.has_header(self.header1 + self.sample1), self.assertIs(sniffer.has_header(self.header1 + self.sample1), True)
True)
def test_has_header_regex_special_delimiter(self): def test_has_header_regex_special_delimiter(self):
sniffer = csv.Sniffer() sniffer = csv.Sniffer()
self.assertEqual(sniffer.has_header(self.sample8), False) self.assertIs(sniffer.has_header(self.sample8), False)
self.assertEqual(sniffer.has_header(self.header2 + self.sample8), self.assertIs(sniffer.has_header(self.header2 + self.sample8), True)
True)
def test_guess_quote_and_delimiter(self): def test_guess_quote_and_delimiter(self):
sniffer = csv.Sniffer() sniffer = csv.Sniffer()
@ -1001,12 +999,12 @@ Stonecutters Seafood and Chop House+ Lemont+ IL+ 12/19/02+ Week Back
dialect = sniffer.sniff(self.sample1) dialect = sniffer.sniff(self.sample1)
self.assertEqual(dialect.delimiter, ",") self.assertEqual(dialect.delimiter, ",")
self.assertEqual(dialect.quotechar, '"') self.assertEqual(dialect.quotechar, '"')
self.assertEqual(dialect.skipinitialspace, True) self.assertIs(dialect.skipinitialspace, True)
dialect = sniffer.sniff(self.sample2) dialect = sniffer.sniff(self.sample2)
self.assertEqual(dialect.delimiter, ":") self.assertEqual(dialect.delimiter, ":")
self.assertEqual(dialect.quotechar, "'") self.assertEqual(dialect.quotechar, "'")
self.assertEqual(dialect.skipinitialspace, False) self.assertIs(dialect.skipinitialspace, False)
def test_delimiters(self): def test_delimiters(self):
sniffer = csv.Sniffer() sniffer = csv.Sniffer()
@ -1068,7 +1066,7 @@ class TestLeaks(unittest.TestCase):
delta = rc-lastrc delta = rc-lastrc
lastrc = rc lastrc = rc
# if csv.reader() leaks, last delta should be 3 or more # if csv.reader() leaks, last delta should be 3 or more
self.assertEqual(delta < 3, True) self.assertLess(delta, 3)
def test_create_write(self): def test_create_write(self):
delta = 0 delta = 0
@ -1084,7 +1082,7 @@ class TestLeaks(unittest.TestCase):
delta = rc-lastrc delta = rc-lastrc
lastrc = rc lastrc = rc
# if csv.writer() leaks, last delta should be 3 or more # if csv.writer() leaks, last delta should be 3 or more
self.assertEqual(delta < 3, True) self.assertLess(delta, 3)
def test_read(self): def test_read(self):
delta = 0 delta = 0
@ -1100,7 +1098,7 @@ class TestLeaks(unittest.TestCase):
delta = rc-lastrc delta = rc-lastrc
lastrc = rc lastrc = rc
# if reader leaks during read, delta should be 5 or more # if reader leaks during read, delta should be 5 or more
self.assertEqual(delta < 5, True) self.assertLess(delta, 5)
def test_write(self): def test_write(self):
delta = 0 delta = 0
@ -1117,7 +1115,7 @@ class TestLeaks(unittest.TestCase):
delta = rc-lastrc delta = rc-lastrc
lastrc = rc lastrc = rc
# if writer leaks during write, last delta should be 5 or more # if writer leaks during write, last delta should be 5 or more
self.assertEqual(delta < 5, True) self.assertLess(delta, 5)
class TestUnicode(unittest.TestCase): class TestUnicode(unittest.TestCase):

3
Misc/NEWS.d/next/Library/2018-07-23-14-12-28.bpo-34197.7yFSP5.rst Normal file
View File

@ -0,0 +1,3 @@
Attributes *skipinitialspace*, *doublequote* and *strict* of the *dialect*
attribute of the :mod:`csv` reader are now :class:`bool` instances instead
of integers 0 or 1.

31
Modules/_csv.c
View File

@ -12,6 +12,7 @@ module instead.
#include "Python.h" #include "Python.h"
#include "structmember.h" #include "structmember.h"
#include <stdbool.h>
typedef struct { typedef struct {
@ -74,15 +75,15 @@ static const StyleDesc quote_styles[] = {
typedef struct { typedef struct {
PyObject_HEAD PyObject_HEAD
int doublequote; /* is " represented by ""? */ char doublequote; /* is " represented by ""? */
Py_UCS4 delimiter; /* field separator */ char skipinitialspace; /* ignore spaces following delimiter? */
Py_UCS4 quotechar; /* quote character */ char strict; /* raise exception on bad CSV */
Py_UCS4 escapechar; /* escape character */
int skipinitialspace; /* ignore spaces following delimiter? */
PyObject *lineterminator; /* string to write between records */
int quoting; /* style of quoting to write */ int quoting; /* style of quoting to write */
Py_UCS4 delimiter; /* field separator */
Py_UCS4 quotechar; /* quote character */
Py_UCS4 escapechar; /* escape character */
PyObject *lineterminator; /* string to write between records */
int strict; /* raise exception on bad CSV */
} DialectObj; } DialectObj;
static PyTypeObject Dialect_Type; static PyTypeObject Dialect_Type;
@ -189,7 +190,7 @@ Dialect_get_quoting(DialectObj *self)
} }
static int static int
_set_bool(const char *name, int *target, PyObject *src, int dflt) _set_bool(const char *name, char *target, PyObject *src, bool dflt)
{ {
if (src == NULL) if (src == NULL)
*target = dflt; *target = dflt;
@ -197,7 +198,7 @@ _set_bool(const char *name, int *target, PyObject *src, int dflt)
int b = PyObject_IsTrue(src); int b = PyObject_IsTrue(src);
if (b < 0) if (b < 0)
return -1; return -1;
*target = b; *target = (char)b;
} }
return 0; return 0;
} }
@ -292,9 +293,9 @@ dialect_check_quoting(int quoting)
#define D_OFF(x) offsetof(DialectObj, x) #define D_OFF(x) offsetof(DialectObj, x)
static struct PyMemberDef Dialect_memberlist[] = { static struct PyMemberDef Dialect_memberlist[] = {
{ "skipinitialspace", T_INT, D_OFF(skipinitialspace), READONLY }, { "skipinitialspace", T_BOOL, D_OFF(skipinitialspace), READONLY },
{ "doublequote", T_INT, D_OFF(doublequote), READONLY }, { "doublequote", T_BOOL, D_OFF(doublequote), READONLY },
{ "strict", T_INT, D_OFF(strict), READONLY }, { "strict", T_BOOL, D_OFF(strict), READONLY },
{ NULL } { NULL }
}; };
@ -411,13 +412,13 @@ dialect_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
if (meth(name, target, src, dflt)) \ if (meth(name, target, src, dflt)) \
goto err goto err
DIASET(_set_char, "delimiter", &self->delimiter, delimiter, ','); DIASET(_set_char, "delimiter", &self->delimiter, delimiter, ',');
DIASET(_set_bool, "doublequote", &self->doublequote, doublequote, 1); DIASET(_set_bool, "doublequote", &self->doublequote, doublequote, true);
DIASET(_set_char, "escapechar", &self->escapechar, escapechar, 0); DIASET(_set_char, "escapechar", &self->escapechar, escapechar, 0);
DIASET(_set_str, "lineterminator", &self->lineterminator, lineterminator, "\r\n"); DIASET(_set_str, "lineterminator", &self->lineterminator, lineterminator, "\r\n");
DIASET(_set_char, "quotechar", &self->quotechar, quotechar, '"'); DIASET(_set_char, "quotechar", &self->quotechar, quotechar, '"');
DIASET(_set_int, "quoting", &self->quoting, quoting, QUOTE_MINIMAL); DIASET(_set_int, "quoting", &self->quoting, quoting, QUOTE_MINIMAL);
DIASET(_set_bool, "skipinitialspace", &self->skipinitialspace, skipinitialspace, 0); DIASET(_set_bool, "skipinitialspace", &self->skipinitialspace, skipinitialspace, false);
DIASET(_set_bool, "strict", &self->strict, strict, 0); DIASET(_set_bool, "strict", &self->strict, strict, false);
/* validate options */ /* validate options */
if (dialect_check_quoting(self->quoting)) if (dialect_check_quoting(self->quoting))