Cron job in django

SET UP

installation:   using the following command pip install django-crontab

add it to installed apps in django settings.py:

INSTALLED_APPS = (
‘django_crontab’,
…
)

now create a new method that should be executed by cron every 5 minutes, f.e. in myapp/cron.py:

 def cron()  
    import numpy as np
    import matplotlib.pyplot as plt
    import pandas as pd
    dataset = pd.read_csv('myapp/data/KBfinal.csv') 
    y = dataset.iloc[:, [1]].values
    y1 = dataset.iloc[:, [2]].values

    import re
    import nltk
    nltk.download('stopwords')
    from nltk.corpus import stopwords   
    from nltk.stem.porter import PorterStemmer
    corpus = []
    for i in range(0,len(dataset)):

        c1=[]
        review = re.sub('[^a-zA-Z]', ' ', str(dataset['0'][i]))
        review = review.lower()
        review = review.split()
        ps = PorterStemmer()
        review = [word for word in review if not word in set(stopwords.words('english'))]
        review = ' '.join(review)
        corpus.append(review)

    from sklearn.feature_extraction.text import TfidfVectorizer,CountVectorizer
    vectorizer = TfidfVectorizer(stop_words='english')
    X = vectorizer.fit_transform(corpus)

    from sklearn.model_selection import train_test_split
    X_train, X_test, y_train, y_test = train_test_split(X, y, test_size = 0.20, random_state = 0)

    from sklearn.ensemble import RandomForestClassifier
    classifier = RandomForestClassifier(n_estimators = 25, criterion = 'entropy', random_state = 0)
    classifier.fit(X, y.ravel())
    print('MACHINE LEARNING SUCESSFULLLL')
    import pickle
    pickl = {
        'vectorizer': vectorizer,
        'classifier': classifier,        
          }
    pickle.dump( pickl, open( 'myapp/model/models1' + ".p", "wb" ) )

    with open('myapp/model/parrot.pkl', 'wb') as f:
        pickle.dump(corpus, f)
    with open('myapp/model/y.pkl', 'wb') as ff:

        pickle.dump(y, ff)  
    with open('myapp/model/y1.pkl', 'wb') as fff:
        pickle.dump(y1, fff)     

now add this to your settings.py:

CRONJOBS = (‘*/5 * * * *’, ‘myapp.cron.cron’)