How to use Pickle to save and load Variables in Python?

To use Pickle to save and load variables in Python, you can use the pickle.dump() method to write a Python object to a file, and the pickle.load() method to read the object back from the file. Here’s an example:

import pickle

# Create an object to save
my_dict = {'hello': 'world'}

# Save the object to a file
with open('my_dict.pickle', 'wb') as f:
    pickle.dump(my_dict, f)

# Load the object from the file
with open('my_dict.pickle', 'rb') as f:
    loaded_dict = pickle.load(f)

# Print the loaded object
print(loaded_dict)

In this example, we create a dictionary my_dict and save it to a file called my_dict.pickle using the pickle.dump() method. We then load the object from the file using the pickle.load() method and store it in the loaded_dict variable. Finally, we print the loaded object to verify that it has been successfully loaded.

Note that while Pickle is a convenient way to save and load Python objects, it does have some security risks. Only unpickle data from trusted sources, as malicious code can be executed when unpickling untrusted data.