How to save an object to disk with Python?

Sometimes, we want to save an object to disk with Python.

In this article, we’ll look at how to save an object to disk with Python.

How to save an object to disk with Python?

To save an object to disk with Python, we can use the pickle module.

For instance, we write:

import pickle


class Company(object):
    def __init__(self, name, value):
        self.name = name
        self.value = value


company = Company('foo', 'bar')


def save_object(obj, filename):
    with open(filename, 'wb') as outp:
        pickle.dump(obj, outp, pickle.HIGHEST_PROTOCOL)


save_object(company, 'company.pkl')

We have the Company class that we instantiated and assigned to company.

Then we define the save_object function that opens filename and call pickle.dump with obj, the outp file and pickle.HIGHEST_PROTOCOL to always save the file with the latest data.

Conclusion

To save an object to disk with Python, we can use the pickle module.