import?os
import?re
from?mrjob.job?import?MRJob
from?mrjob.step?import?MRStep

word_search_re?=?re.compile（r“[\w‘]+“）


class?ExtractPosts（MRJob）:

????post_start?=?False
????post?=?[]

????def?mapper（self?key?line）:
????????filename?=?os.environ[“map_input_file“]
????????gender?=?filename.split（“.“）[1]
????????try:
????????????docnum?=?int（filename[0]）
????????except:
????????????docnum?=?8
????????if?filename.startswith（“51“）:
????????????#?remove?leading?and?trailing?whitespace
????????????line?=?line.strip（）
????????????if?line?==?““:
????????????????self.post_start?=?True
????????????elif?line?==?““:
????????????????self.post_start?=?False
????????????????yield?gender?repr（“\n“.join（self.post））
????????????????self.post?=?[]
????????????elif?self.post_start:
????????????????self.post.append（line）



if?__name__?==?‘__main__‘:
????ExtractPosts.run（）

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-09-27?07:16??LearningDataMiningWithPython-master\
?????文件?????????764??2016-09-27?07:16??LearningDataMiningWithPython-master\.gitignore
?????文件????????1112??2016-09-27?07:16??LearningDataMiningWithPython-master\INSTALL.md
?????目錄???????????0??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\
?????目錄???????????0??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?1\
?????文件????????1000??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?1\affinity_dataset.txt
?????文件???????16777??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?1\ch1_affinity.ipynb
?????文件????????3670??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?1\ch1_affinity_create.ipynb
?????文件???????13847??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?1\ch1_oner_application.ipynb
?????目錄???????????0??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?10\
?????文件???????78925??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?10\Chapter?10?Clusterer.ipynb
?????目錄???????????0??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?11\
?????文件???????59206??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?11\Chapter?11?（CIFAR）.ipynb
?????文件???????62409??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?11\Chapter?11?（Theano?and?Lasagne）.ipynb
?????目錄???????????0??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?12\
?????文件???????38759??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?12\CH12?MapReduce?Basics.ipynb
?????文件???????10578??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?12\Chapter?12?（NB?Predict）.ipynb
?????文件????????1730??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?12\Chapter?12?（Test?load）.ipynb
?????文件?????????882??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?12\extract_posts.py
?????文件????????1986??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?12\nb_predict.py
?????文件????????2021??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?12\nb_train.py
?????目錄???????????0??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?2\
?????文件??????143291??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?2\Ionosphere?Nearest?Neighbour.ipynb
?????目錄???????????0??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?3\
?????文件???????45385??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?3\Basketball?Results.ipynb
?????目錄???????????0??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?4\
?????文件???????46259??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?4\ch4?Affinity?Analysis.ipynb
?????目錄???????????0??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?5\
?????文件????????1034??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?5\adult_tests.py
?????文件???????13293??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?5\ch5_adult.ipynb
?????文件???????29985??2016-09-27?07:16??LearningDataMiningWithPython-master\LearningDataMiningBook\Chapter?5\ch5_advertisements.ipynb
............此處省略18個文件信息