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* Correct Sniffer doc to correspond to the implementation.

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* Add optional delimiters arg to Sniffer.sniff() which restricts the set of
  candidate field delimiters.
This commit is contained in:
Skip Montanaro 2003-05-19 15:33:36 +00:00
parent c626658a28
commit 7789237331
3 changed files with 31 additions and 14 deletions
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15
Lib/test/test_csv.py
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@ -551,6 +551,12 @@ Stonecutters Seafood and Chop House, Lemont, IL, 12/19/02, Week Back
header = '''\
"venue","city","state","date","performers"
'''
sample3 = '''\
05/05/03?05/05/03?05/05/03?05/05/03?05/05/03?05/05/03
05/05/03?05/05/03?05/05/03?05/05/03?05/05/03?05/05/03
05/05/03?05/05/03?05/05/03?05/05/03?05/05/03?05/05/03
'''
def test_has_header(self):
sniffer = csv.Sniffer()
self.assertEqual(sniffer.has_header(self.sample1), False)
@ -568,6 +574,15 @@ Stonecutters Seafood and Chop House, Lemont, IL, 12/19/02, Week Back
self.assertEqual(dialect.quotechar, "'")
self.assertEqual(dialect.skipinitialspace, False)
def test_delimiters(self):
sniffer = csv.Sniffer()
dialect = sniffer.sniff(self.sample3)
self.assertEqual(dialect.delimiter, "0")
dialect = sniffer.sniff(self.sample3, delimiters="?,")
self.assertEqual(dialect.delimiter, "?")
dialect = sniffer.sniff(self.sample3, delimiters="/,")
self.assertEqual(dialect.delimiter, "/")
if not hasattr(sys, "gettotalrefcount"):
if test_support.verbose: print "*** skipping leakage tests ***"
else: