Question

我正在使用mrjob库在python中编写mapreducer。我安装了mrjob包，但是当我Sub Macro1() ' ' Macro1 Macro ' ' ActiveSheet.Shapes.AddChart2(201, xlColumnClustered).Select ActiveChart.ApplyChartTemplate ( _ "C:\Users\Username\AppData\Roaming\Microsoft\Templates\Charts\WhatYouNamedTheTemplate.crtx")Sheet1!$A$1:$C$4 ActiveChart.SetSourceData Source:=Range("SheetWhereDataIs!RangeYouWantChartToBeCreatedFrom EX:Sheet1!$A$1:$C$4") End Sub时出现错误：

from mrjob.step import MRStep

任何人都可以帮助我吗？非常感谢

Answer 1

大家好我解决了这个问题，这里是字数的工作代码。从本质上讲，一个简单的替代对我有用。

来自mrjob.job导入MRJob 导入重新

WORD_RE = re.compile（r＆＃34; [\ w＆＃39;] +＆＃34;）

类MRMostUsedWord（MRJob）：

def mapper_get_words(self, _, line):
    # yield each word in the line
    for word in WORD_RE.findall(line):
        yield (word.lower(), 1)

def combiner_count_words(self, word, counts):
    # sum the words we've seen so far
    yield (word, sum(counts))

def reducer_count_words(self, word, counts):
    # send all (num_occurrences, word) pairs to the same reducer.
    # num_occurrences is so we can easily use Python's max() function.
    yield None, (sum(counts), word)

# discard the key; it is just None
def reducer_find_max_word(self, _, word_count_pairs):
    # each item of word_count_pairs is (count, word),
    # so yielding one results in key=counts, value=word
    yield max(word_count_pairs)

def steps(self):
    return [
        self.mr(mapper=self.mapper_get_words,
               combiner=self.combiner_count_words,
               reducer=self.reducer_count_words),
        self.mr(reducer=self.reducer_find_max_word)
    ]

如果名称 ==＆＃39; 主要＆＃39;： MRMostUsedWord.run（）

ImportError：没有名为step的模块

1 个答案: