Python IBM cloud/bluemix 上的 Flask 应用程序带有 Textblob 库抛出异常 - textblob.exceptions.MissingCorpusError

Question

我正在尝试运行 python Flask 应用程序在 IBM cloud/Bluemix 上使用一些文本分析（使用 TextBlob）功能。通过 cf 部署应用程序后我收到以下错误push 命令（见下文）。根据 TextBlob 网站上的文档，当用户尝试使用需要用户系统上没有的数据集或模型的功能时，会抛出此异常。

error:
Error while running the app:
textblob.exceptions.MissingCorpusError
MissingCorpusError: 
Looks like you are missing some required data for this feature.

To download the necessary data, simply run

python -m textblob.download_corpora
or use the NLTK downloader to download the missing data: 
http://nltk.org/data.html
If this doesn't fix the problem, file an issue at 
https://github.com/sloria/TextBlob/issues.

现在我的问题是我已经在 requirement.txt 中添加了 Flask、Textblob 和 NLTK，如图所示 below.Please 建议如何运行 python -m textblob.download_corpora 命令使这个缺失的 dataset/model 可用于 bluemix environment.If 而不是上面提到的运行ning 命令，有没有其他方法可以使它工作。 Note:This 应用程序在本地系统上运行完美。

requirement.txt content:
Flask==0.12.2
cloudant==2.4.0
textblob==0.15.1
nltk==3.3

这是 error/warning 我在通过推送命令部署应用程序时得到的

        -----> Downloading NLTK corpora...
!     nltk.txt not found, not downloading any corpora

Henrik 询问的编辑：当我运行命令 python -m textblob.download_corpora 下面的语料库正在下载到我的 system.I 时，我在 nltk.txt 文件

中提到了相同的列表

`[nltk_data] Downloading package brown to
 [nltk_data]     C:\Users\MohanaKrishnaV\AppData\Roaming\nltk_data...
 [nltk_data]   Package brown is already up-to-date!
 [nltk_data] Downloading package punkt to
 [nltk_data]     C:\Users\MohanaKrishnaV\AppData\Roaming\nltk_data...
 [nltk_data]   Package punkt is already up-to-date!
 [nltk_data] Downloading package wordnet to
 [nltk_data]     C:\Users\MohanaKrishnaV\AppData\Roaming\nltk_data...
 [nltk_data]   Package wordnet is already up-to-date!
 [nltk_data] Downloading package averaged_perceptron_tagger to
 [nltk_data]     C:\Users\MohanaKrishnaV\AppData\Roaming\nltk_data...
 [nltk_data]   Package averaged_perceptron_tagger is already up-to-
 [nltk_data]       date!
 [nltk_data] Downloading package conll2000 to
 [nltk_data]     C:\Users\MohanaKrishnaV\AppData\Roaming\nltk_data...
 [nltk_data]   Package conll2000 is already up-to-date!
 [nltk_data] Downloading package movie_reviews to
 [nltk_data]     C:\Users\MohanaKrishnaV\AppData\Roaming\nltk_data...
 [nltk_data]   Package movie_reviews is already up-to-date!
 Finished.

这就是我的 nltk.txt 的样子

brown wordnet
averaged_perceptron_tagger
brown
sentence_polarity
sentiwordnet
subjectivity
words
punkt
maxent_treebank_pos_tagger
movie_reviews
conll2000

我已经在 nltk.txt 中添加了额外的语料库，如下所示，希望这不是问题

 sentence_polarity
 sentiwordnet
 subjectivity
 words

错误日志是这样的：

   -------> Buildpack version 1.5.22
   -----> Installing pip-pop (0.1.1)
   Downloaded [https://buildpacks.cloudfoundry.org/dependencies/manual- 
   binaries/pip-pop/pip-pop-0.1.1-d410583a.tar.gz]
   -----> Installing pipenv (4.0.1)
   Downloaded [https://buildpacks.cloudfoundry.org/dependencies/manual- 
   binaries/pipenv/pipenv-4.0.1-148f753f.tar.gz]
    $ pip install -r requirements.txt
   You are using pip version 9.0.1, however version 10.0.1 is available.
   You should consider upgrading via the 'pip install --upgrade pip' command.
   You are using pip version 9.0.1, however version 10.0.1 is available.
   You should consider upgrading via the 'pip install --upgrade pip' command.
   -----> Downloading NLTK corpora...
   -----> Downloading NLTK packages: brown wordnet
   averaged_perceptron_tagger
   brown
   sentence_polarity
   sentiwordnet
   subjectivity
   words
   punkt
   maxent_treebank_pos_tagger
   movie_reviews
      [nltk_data] Downloading package brown to
      [nltk_data]     /tmp/contents525031002/deps/0/python/nltk_data...
      [nltk_data]   Package brown is already up-to-date!
      [nltk_data] Error loading wordnet : Package 'wordnet\r' not found in
      [nltk_data]     index
      Error installing package. Retry? [n/y/e]
    Traceback (most recent call last):
    File "/tmp/contents525031002/deps/0/python/lib/python2.7/runpy.py", line 
    174, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
    File "/tmp/contents525031002/deps/0/python/lib/python2.7/runpy.py", line 
    72, in _run_code
    exec code in run_globals
    File "/tmp/contents525031002/deps/0/python/lib/python2.7/site- 
    packages/nltk/downloader.py", line 2272, in <module>
    halt_on_error=options.halt_on_error)
    File "/tmp/contents525031002/deps/0/python/lib/python2.7/site- 
    packages/nltk/downloader.py", line 681, in download
    choice = input().strip()
    EOFError: EOF when reading a line
    Exit status 0
    Staging complete
    Uploading droplet, build artifacts cache...
    Uploading build artifacts cache...
    Uploading droplet...
    Uploaded build artifacts cache (64.3M)
    Uploaded droplet (105.6M)
    Uploading complete
    Stopping instance 6cbf3cbc-aef1-4a73-a7ab-d562a606fe5b
    Destroying container
    Successfully destroyed container

这就是我推送我的应用程序的方式： cf login >> [我提供我的登录详细信息] >>cf push

Answer 1

您部署的应用程序的根目录中似乎没有 nltk.txt。 The Cloud Foundry Python buildpacks have built-in support for NLTK。该文本文件包含有关在部署期间需要安装哪些语料库的信息。

nltk.txt 的示例内容：

wordnet averaged_perceptron_tagger brown sentence_polarity

确保它是单行的，没有重复的，没有奇怪的字符...

Python IBM cloud/bluemix 上的 Flask 应用程序带有 Textblob 库抛出异常 - textblob.exceptions.MissingCorpusError

Python Flask Application on IBM cloud/bluemix with Textblob library throwing exception - textblob.exceptions.MissingCorpusError

python

nltk

flask

textblob

ibm-cloud