title: How to remove Non English words in Python?
body: <p>I am doing a sentiment analysis project in Python (using Natural Language Processing). I already collected the data from twitter and saved it as a CSV file. The file contains tweets, which are mostly about cryptocurrency. I cleaned the data but there is one more thing before I apply sentiment analysis using classfication algorithms. Here's the out for importing libraries </p>
  
  <pre><code># importing Libraries
  from pandas import DataFrame, read_csv
  import chardet
  import matplotlib.pyplot as plt; plt.rcdefaults()
  from matplotlib import rc
  %matplotlib inline
  import pandas as pd
  plt.style.use('ggplot')
  import numpy as np
  import re
  import warnings
  
  #Visualisation
  import matplotlib.pyplot as plt
  import matplotlib
  import seaborn as sns
  from IPython.display import display
  from mpl_toolkits.basemap import Basemap
  from wordcloud import WordCloud, STOPWORDS
  
  #nltk
  from nltk.stem import WordNetLemmatizer
  from nltk.sentiment.vader import SentimentIntensityAnalyzer
  from nltk.sentiment.util import *
  from nltk import tokenize
  from sklearn.feature_extraction.text import TfidfVectorizer
  from nltk.stem.snowball import SnowballStemmer
  
  
  matplotlib.style.use('ggplot')
  pd.options.mode.chained_assignment = None
  warnings.filterwarnings("ignore")
  
  %matplotlib inline
  
      ## Reading CSV File and naming the object called crime
  ltweet=pd.read_csv("C:\\Users\\name\\Documents\\python assignment\\litecoin1.csv",index_col = None, skipinitialspace = True)
  print(ltweet)
  </code></pre>
  
  <p>I already clean most of the data, so no need to put the codes for that part. In my column there are tweets that contains mostly non English language. I want to remove all of them(Non English text only). Here's the output for example</p>
  
  <pre><code>ltweet['Tweets'][0:3]
  
  output:
  0      the has published a book on understanding العَرَبِيَّة‎
  1      accepts litecoin gives % discount on all iphon...
  2      days until litepay launches accept store and s...
  3           ltc to usd price litecoin ltc cryptocurrency
  </code></pre>
  
  <p>Is there a way to remove non English words in the data? Can anyone help me write the code for it? By the way, the code is based on Pandas.</p>