def getTweets(hashtag):
try:
posts = api.user_timeline(screen_name=hashtag, count = 10000, lang ="en", tweet_mode="extended")
tweetData = []
for post in posts:
result = {}
result['created_at'],result['Tweet'],result['user'] = str(post.created_at),post.full_text,post.user.name
result['screen_name'],result['location'],result['about'] = post.user.screen_name,post.user.location,post.user.description
result['followers'],result['following'] = post.user.followers_count,post.user.friends_count
result['retweetCount'],result['likeCount'] = post.retweet_count,post.favorite_count
result['cleanedTweet'] = clean_tweets(clean(post.full_text))
result['processedTweet'] = clean(post.full_text)
blob = TextBlob(str(result['cleanedTweet']))
Sentiment = blob.sentiment
polarity,subjectivity = Sentiment.polarity,Sentiment.subjectivity
sentimentClass = 'Negative' if polarity < 0 else 'Positive' if polarity > 0 else 'Neutral'
result['SentimentScore'],result['Polarity'],result['Subjectivity'] = sentimentClass,polarity,subjectivity
tweetData.append(result)
tweet_df = pd.DataFrame(tweetData)
return tweet_df
except Exception as e:
print ('Error on line {}'.format(sys.exc_info()[-1].tb_lineno),Exception, e)
def clean_tweet(self, text=None):
# emoji_pattern + re.compile
if text is None:
text = self.text_
tweet = p.clean(text)
tweet = re.sub(r':', '', tweet)
return tweet
def clean_tweets(df):
tempArr = []
for line in df:
# send to tweet_processor
tmpL = clean(str(line))
# remove puctuation
tmpL = REPLACE_NO_SPACE.sub(
"", tmpL.lower()) # convert all tweets to lower cases
tmpL = REPLACE_WITH_SPACE.sub(" ", tmpL)
tempArr.append(tmpL)
return tempArr
def preprocessDataFrame(df):
"""
Function to run the preprocessing pipeline on all tweets to generate
the feature "full_text_processed": Translating tweets to English, removing
stopwords & lemmatization, removing URLs and reserved words, lowercasing &
punctuation removal and VADER sentiment analysis.
Parameters
----------
df : DataFrame
Transformed DataFrame with original tweets
Returns:
df : DataFrame
DataFrame with processed tweets
"""
df['full_text_processed'] = df.apply(
lambda x: translate_func(x, 'full_text', 'lang'), axis=1)
# for some reason some rows are type float so make sure nothing will crash
df['full_text_processed'] = df['full_text_processed'].astype(str)
api.set_options('urls', 'reserved_words')
df['full_text_processed'] = df['full_text_processed'].apply(
lambda x: api.clean(x))
df['full_text_processed'] = df['full_text_processed'].apply(
lambda x: x.lower())
def remove_punct(text):
table = str.maketrans('', '', string.punctuation)
return text.translate(table)
df['full_text_processed'] = df['full_text_processed'].apply(
lambda x: remove_punct(x))
lemmatizer = nltk.stem.WordNetLemmatizer()
df['full_text_processed'] = df['full_text_processed'].apply(
lambda x: ' '.join([lemmatizer.lemmatize(w) for w in x.split()]))
stop_words = set(stopwords.words('english'))
df['full_text_processed'] = df['full_text_processed'].apply(
lambda x: ' '.join(
[word for word in x.split() if word not in stop_words]))
sid = SentimentIntensityAnalyzer()
def create_sentiment(x, text):
return sid.polarity_scores(text)['compound']
# add sentiment as part of preprocessing
df['sentiment'] = df.apply(
lambda x: create_sentiment(x, x['full_text_processed']), axis=1)
return df
def data_preprocessing (tweets_raw):
clean_text = clean(tweets_raw)
#print("### Info: Cleaning the data...", end='')
#tweets_clean = pd.DataFrame(columns=["Date","Location", "Text"])
"""
for i in range(tweets_raw.shape[0]):
clean_text = clean(tweets_raw["Text"][i])
tweets_raw["Text"][i] = clean_text
"""
#print("DONE!")
return tweets_raw
def clean_pipeline(text):
'''
Function for apply. Performs preprocess.api clean function to raw text.
args:
-text: string.
'''
toret = unicode_to_ascii(text)
toret = remove_punctuation(toret)
toret = clean(toret)
toret = toret.lower() # All lowercase
toret = remove_urls(toret)
toret = remove_double_whitespaces(toret) # Remove double spaces
toret = remove_lspace(toret) # Remove leading space
toret = remove_rspace(toret)
return toret
def clean(self, text):
"""
Parses and cleans a tweet
:param: Text of the tweet
:return: A cleaned tweet
TODO: Update data cleaning function
"""
if text is None:
text = self.text_
# Remove punctuation, username, other elements from text
text = text.translate(str.maketrans('','',string.punctuation))
if re.match(r'^([RT])\w', text):
tokens = text.split(' ')
text = ' '.join(tokens[2:])
tweet = p.clean(text)
tweet = re.sub(r':', '', tweet)
return tweet.lower()
train.head(10)
train = train[['selected_text', 'sentiment']]
train.head()
train['sentiment'].unique()
train.groupby('sentiment').nunique()
train["selected_text"].fillna("No content", inplace=True)
temp = []
#Splitting pd.Series to list
data_to_list = train['selected_text'].values.tolist()
for i in range(len(data_to_list)):
temp.append(clean(data_to_list[i]))
list(temp[:5])
def sent_to_words(sentences):
for sentence in sentences:
yield (gensim.utils.simple_preprocess(str(sentence), deacc=True)
) # deacc=True removes punctuations
data_words = list(sent_to_words(temp))
print(data_words[:10])
len(data_words)
public_tweets = tweepy.Cursor(api.search, q=search_term,
lang="en").items(no_of_search_items)
index = 0
if os.path.isfile('./tweetbykeyword.csv'):
my_csv_file = open('tweetbykeyword.csv', 'r+')
reader = csv.DictReader(my_csv_file)
field_names = ['Index', 'Keyword', 'Tweets']
for each_row in reader:
if search_term == each_row['Keyword']:
index += 1
writer = csv.DictWriter(my_csv_file, fieldnames=field_names)
else:
my_csv_file = open('tweetbykeyword.csv', 'w')
field_names = ['Index', 'Keyword', 'Tweets']
writer = csv.DictWriter(my_csv_file, fieldnames=field_names)
writer.writeheader()
for each_tweet in public_tweets:
data = p.clean(each_tweet.text)
data = data.encode('utf-8')
data = data.decode('unicode_escape')
writer.writerow({'Index': index, 'Keyword': search_term, \
'Tweets': data})
index += 1
elif int(user_input) == 2:
loop = False
else:
print('Please enter 1 or 2')
def get_stock_sentiment(stock_symbol):
symbol = stock_symbol.split(".")[0].lower() + " stock"
auth = tweepy.OAuthHandler(CONSUMER_KEY, CUSTOMER_SECRET)
auth.set_access_token(ACCESS_TOKEN, ACCESS_TOKEN_TOKEN)
user = tweepy.API(auth)
tweets = tweepy.Cursor(user.search, q=str(symbol), tweet_mode='extended', lang='en',exclude_replies=True).items(NUM_OF_TWEETS)
tweet_list = [] #List of tweets alongside polarity
global_polarity = 0 #Polarity of all tweets === Sum of polarities of individual tweets
tw_list=[] #List of tweets only => to be displayed on web page
#Count Positive, Negative to plot pie chart
pos=0 #Num of pos tweets
neg=1 #Num of negative tweets
for tweet in tweets:
count=20 #Num of tweets to be displayed on web page
#Convert to Textblob format for assigning polarity
tw2 = tweet.full_text
tw = tweet.full_text
#Clean
tw=clean(tw)
#print("-------------------------------CLEANED TWEET-----------------------------")
#print(tw)
#Replace & by &
tw=re.sub('&','&',tw)
#Remove :
tw=re.sub(':','',tw)
#print("-------------------------------TWEET AFTER REGEX MATCHING-----------------------------")
#print(tw)
#Remove Emojis and Hindi Characters
tw=tw.encode('ascii', 'ignore').decode('ascii')
#print("-------------------------------TWEET AFTER REMOVING NON ASCII CHARS-----------------------------")
#print(tw)
blob = TextBlob(tw)
polarity = 0 #Polarity of single individual tweet
for sentence in blob.sentences:
polarity += sentence.sentiment.polarity
if polarity>0:
pos=pos+1
if polarity<0:
neg=neg+1
global_polarity += sentence.sentiment.polarity
if count > 0:
tw_list.append(tw2)
#tweet_list.append(Tweet(tw, polarity))
count=count-1
try:
global_polarity = global_polarity / len(tw_list)
except:
pass
neutral=NUM_OF_TWEETS-pos-neg
if neutral<0:
neg=neg+neutral
neutral=20
labels=['Positive','Negative','Neutral']
sizes = [pos,neg,neutral]
explode = (0, 0, 0)
fig = plt.figure(figsize=(7.2,4.8),dpi=65)
fig1, ax1 = plt.subplots(figsize=(7.2,4.8),dpi=65)
ax1.pie(sizes, explode=explode, labels=labels, autopct='%1.1f%%', startangle=90)
# Equal aspect ratio ensures that pie is drawn as a circle
ax1.axis('equal')
plt.tight_layout()
plt.savefig("static/"+stock_symbol+"_sa"+'.png')
plt.close(fig)
#plt.show()
if pos-neg > 10:
suggestion = " According to sentiment analysis, stock price may RISE"
tw_pol = " Overall Positive"
elif neg-pos > 10:
suggestion = " According to sentiment analysis, stock price may FALL"
tw_pol = " Overall Negative"
else:
suggestion = " According to sentiment analysis, there wont be much volatilty in the stock price"
tw_pol = " Almost neautral "
return suggestion, tw_list, tw_pol
def clean_text(val):
val = p.clean(val)
val = re.sub('@(\w+)','',val)
val = re.sub('#',"", val)
val = punctuation(val)
return val
from keras.layers.embeddings import Embedding
from keras.layers import GlobalMaxPooling1D, Conv1D, MaxPooling1D, Flatten, Bidirectional, SpatialDropout1D
print(tf.__version__)
df = pd.read_csv("text_emotion.csv")
df.head()
## Step 1: Data pre-processing
## Remove mentions and "#" symbol in tweet
df['clean_content'] = df.content.apply(lambda x: re.sub('@(\w+)', '', x))
df['clean_content'] = df.clean_content.apply(lambda x: re.sub('#', "", x))
## Clean using the tweet-processing package, removing emojis and urls
df['clean_content'] = df.clean_content.apply(lambda x: p.clean(x))
## Remove unnecessary punctuation in the data, but tag ! and ?
def punctuation(val):
punctuations = '''()-[]{};:'"\,<>./@#$%^&_~'''
for x in val.lower():
if x in punctuations:
val = val.replace(x, " ")
elif x == "!":
val = val.replace(x, " XXEXLMARK ")
elif x == "?":
val = val.replace(x, " XXQUESMARK ")
return val
import os
import tweepy as tw
import pandas as pd
import preprocessor.api as p
from preprocessor.api import clean, tokenize, parse
consumer_key = 'AAAAAAAAAAAAAAAAAAAAAAAA'
consumer_secret = 'BBBBBBBBBBBBBBBBBBBBBBBBB'
access_token = 'CCCCCCCCCCCCCCCCCCCCCCCC'
access_token_secret = 'DDDDDDDDDDDDDDDDDDDDDDD'
# perform authentication
auth = tw.OAuthHandler(consumer_key, consumer_secret)
auth.set_access_token(access_token, access_token_secret)
# Create our twitter api to access tweets from it
api = tw.API(auth)
search_words = "Korea"
date_since = "2019-11-16"
# Collect tweets
tweets = tw.Cursor(api.search, q=search_words, lang="en",
since=date_since).items(5)
# Iterate and print tweets
for tweet in tweets:
print(p.clean(tweet.text))
def write_tweets(keyword, file):
# If the file exists, then read the existing data from the CSV file.
if os.path.exists(file):
df = pd.read_csv(file, header=0)
else:
df = pd.DataFrame(columns=COLS)
#page attribute in tweepy.cursor and iteration
for page in tweepy.Cursor(api.search, q=keyword,
count=200, include_rts=False, since=start_date, tweet_mode="extended").pages(100):
for status in page:
new_entry = []
status = status._json
#when run the code, below code replaces the retweet amount and
#no of favorires that are changed since last download.
if status['created_at'] in df['created_at'].values:
i = df.loc[df['created_at'] == status['created_at']].index[0]
if status['favorite_count'] != df.at[i, 'favorite_count'] or \
status['retweet_count'] != df.at[i, 'retweet_count']:
df.at[i, 'favorite_count'] = status['favorite_count']
df.at[i, 'retweet_count'] = status['retweet_count']
continue
#tweepy preprocessing called for basic preprocessing
clean_text = clean(status['full_text'])
#call clean_tweet method for extra preprocessing
filtered_tweet=clean_tweets(clean_text)
#new entry append
new_entry += [status['id'], status['created_at'],
status['source'], status['full_text'],filtered_tweet, status['lang'],
status['favorite_count'], status['retweet_count']]
#to append original author of the tweet
new_entry.append(status['user']['screen_name'])
try:
is_sensitive = status['possibly_sensitive']
except KeyError:
is_sensitive = None
new_entry.append(is_sensitive)
# hashtagas and mentiones are saved using comma separted
hashtags = ", ".join([hashtag_item['text'] for hashtag_item in status['entities']['hashtags']])
new_entry.append(hashtags)
mentions = ", ".join([mention['screen_name'] for mention in status['entities']['user_mentions']])
new_entry.append(mentions)
#get location of the tweet if possible
try:
location = status['user']['location']
except TypeError:
location = ''
new_entry.append(location)
try:
coordinates = [coord for loc in status['place']['bounding_box']['coordinates'] for coord in loc]
except TypeError:
coordinates = None
new_entry.append(coordinates)
single_tweet_df = pd.DataFrame([new_entry], columns=COLS)
df = df.append(single_tweet_df, ignore_index=True)
csvFile = open(file, 'a' ,encoding='utf-8')
df.to_csv(csvFile, mode='a', columns=COLS, index=False, encoding="utf-8")
