code

_upload_widget = fileupload.FileUploadWidget()

def _cb(change):
    global file_contents
    decoded = io.StringIO(change['owner'].data.decode('utf-8'))
    filename = change['owner'].filename
    print('Uploaded `{}` ({:.2f} kB)'.format(
        filename, len(decoded.read()) / 2 **10))
    file_contents = decoded.getvalue()

_upload_widget.observe(_cb, names='data')
display(_upload_widget)

# 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()


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