Typo fixes
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@ -279,7 +279,7 @@ a sequence of key-value pairs into a dictionary of lists:
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When each key is encountered for the first time, it is not already in the
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mapping; so an entry is automatically created using the
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\member{default_factory} function which returns an empty \class{list}. The
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\method{list.append()} operation then attaches the value the new list. When
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\method{list.append()} operation then attaches the value to the new list. When
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keys are encountered again, the look-up proceeds normally (returning the list
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for that key) and the \method{list.append()} operation adds another value to
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the list. This technique is simpler and faster than an equivalent technique
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@ -308,7 +308,7 @@ languages):
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[('i', 4), ('p', 2), ('s', 4), ('m', 1)]
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\end{verbatim}
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When a letter in first encountered, it is missing from the mapping, so the
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When a letter is first encountered, it is missing from the mapping, so the
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\member{default_factory} function calls \function{int()} to supply a default
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count of zero. The increment operation then builds of the count for each
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letter. This technique makes counting simpler and faster than an equivalent
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