Облако слов: код не показывает ошибки, но отображение wordcloud вызывает ошибку имени - PullRequest
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Облако слов: код не показывает ошибки, но отображение wordcloud вызывает ошибку имени

0 голосов
/ 11 апреля 2020

Вот все установки и импорт: 

!pip install wordcloud
!pip install fileupload
!pip install ipywidgets
!jupyter nbextension install --py --user fileupload
!jupyter nbextension enable --py fileupload

import wordcloud
import numpy as np
from matplotlib import pyplot as plt
from IPython.display import display
import fileupload
import io
import sys

Это виджет загрузки: 

from IPython.display import display
import fileupload

uploader = fileupload.FileUploadWidget()

def _handle_upload(change):
    w = change['owner']
    with open(w.filename, 'wb') as f:
        f.write(w.data)
    print('Uploaded `{}` ({:.2f} kB)'.format(
        w.filename, len(w.data) / 2**10))

uploader.observe(_handle_upload, names='data')

display(uploader)

Программа Wordcloud: 

def calculate_frequencies(file_contents):
    # Here is a list of punctuations and uninteresting words you can use to process your text
    punctuations = '''!()-[]{};:'"\,<>./?@#$%^&*_~'''
    uninteresting_words = ["the", "a", "to", "if", "is", "it", "of", "and", "or", "an", "as", "i", "me", "my", \
    "we", "our", "ours", "you", "your", "yours", "he", "she", "him", "his", "her", "hers", "its", "they", "them", \
    "their", "what", "which", "who", "whom", "this", "that", "am", "are", "was", "were", "be", "been", "being", \
    "have", "has", "had", "do", "does", "did", "but", "at", "by", "with", "from", "here", "when", "where", "how", \
    "all", "any", "both", "each", "few", "more", "some", "such", "no", "nor", "too", "very", "can", "will", "just"]

    # LEARNER CODE START HERE
    non_punctuation_text=""
    for char in file_contents:
        if char not in punctuations:
            non_punctuation_text=non_punctuation_text+char
    words=non_punctuation_text.split()
    clean_words=[]
    frequencies={}

    for word in words:
        if word.isalpha():
            if word not in uninteresting_words:
                clean_words.append(word)
    for alpha_word in clean_words:
        if alpha_word not in frequencies:
            frequencies[alpha_word]=1
        else:
            frequencies[alpha_word]+=1
    #wordcloud
    cloud = wordcloud.WordCloud()
    cloud.generate_from_frequencies(frequencies)
    return cloud.to_array()

Показать наш wordcloud image: 

myimage = calculate_frequencies(file_contents)
plt.imshow(myimage, interpolation = 'nearest')
plt.axis('off')
plt.show()

Сообщение об ошибке: 

NameError                                 Traceback (most recent call last)
<ipython-input-2-fd0f708f372c> in <module>
      1 # Display your wordcloud image
      2 
----> 3 myimage = calculate_frequencies(file_contents)
      4 plt.imshow(myimage, interpolation = 'nearest')
      5 plt.axis('off')

NameError: name 'file_contents' is not defined

какую часть параметра file_contents мне не хватает? Почему это не отображает Wordcloud? Я пытался загрузить разные документы .txt из виджета uploader, но ни один из них не помог.

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