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Kill reduce(). A coproduction of John Reese, Jacques Frechet, and Alex M.

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This commit is contained in:
Guido van Rossum 2006-08-22 00:21:25 +00:00
parent 6cefeb0e81
commit 89da5d7c3d
10 changed files with 25 additions and 144 deletions
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12
Lib/csv.py
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@ -221,12 +221,10 @@ class Sniffer:
if m[n]:
spaces += 1
quotechar = reduce(lambda a, b, quotes = quotes:
(quotes[a] > quotes[b]) and a or b, quotes.keys())
quotechar = max(quotes, key=quotes.get)
if delims:
delim = reduce(lambda a, b, delims = delims:
(delims[a] > delims[b]) and a or b, delims.keys())
delim = max(delims, key=delims.get)
skipinitialspace = delims[delim] == spaces
if delim == '\n': # most likely a file with a single column
delim = ''
@ -285,14 +283,12 @@ class Sniffer:
continue
# get the mode of the frequencies
if len(items) > 1:
modes[char] = reduce(lambda a, b: a[1] > b[1] and a or b,
items)
modes[char] = max(items, key=lambda x: x[1])
# adjust the mode - subtract the sum of all
# other frequencies
items.remove(modes[char])
modes[char] = (modes[char][0], modes[char][1]
- reduce(lambda a, b: (0, a[1] + b[1]),
items)[1])
- sum(item[1] for item in items))
else:
modes[char] = items[0]