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pre_processing.py
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pre_processing.py
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#%%
import re
from bs4 import BeautifulSoup
from nltk.corpus import stopwords
from nltk.stem import PorterStemmer
# To get the results in 4 decemal points
SAFE_DIV = 0.0001
STOP_WORDS = stopwords.words("english")
def preprocess(x):
x = str(x).lower()
x = x.replace(",000,000", "m").replace(",000", "k").replace("′", "'").replace("’", "'")\
.replace("won't", "will not").replace("cannot", "can not").replace("can't", "can not")\
.replace("n't", " not").replace("what's", "what is").replace("it's", "it is")\
.replace("'ve", " have").replace("i'm", "i am").replace("'re", " are")\
.replace("he's", "he is").replace("she's", "she is").replace("'s", " own")\
.replace("%", " percent ").replace("₹", " rupee ").replace("$", " dollar ")\
.replace("€", " euro ").replace("'ll", " will")
x = re.sub(r"([0-9]+)000000", r"\1m", x)
x = re.sub(r"([0-9]+)000", r"\1k", x)
porter = PorterStemmer()
pattern = re.compile('\W')
if type(x) == type(''):
x = re.sub(pattern, ' ', x)
if type(x) == type(''):
x = porter.stem(x)
example1 = BeautifulSoup(x)
x = example1.get_text()
return x