Pandas NLTK tokenizing “unhashable type: 'list'”
问题 Following this example: Twitter data mining with Python and Gephi: Case synthetic biology CSV to: df['Country', 'Responses'] 'Country' Italy Italy France Germany 'Responses' "Loren ipsum..." "Loren ipsum..." "Loren ipsum..." "Loren ipsum..." tokenize the text in 'Responses' remove the 100 most common words (based on brown.corpus) identify the remaining 100 most frequent words I can get through step 1 and 2, but get an error on step 3: TypeError: unhashable type: 'list' I believe it's because