Describe the process of pickling in Python.Select one:conversion of a byte stream into Python object hierarchyconversion of a Python object hierarchy into byte streamconversion of a list into a data tableconversion of a data table into a list

The process of pickling in Python refers to the conversion of a Python object hierarchy into a byte stream. Here are the steps involved in this process:

1. Import the pickle module: The first step is to import the pickle module. This module implements binary protocols for serializing and de-serializing a Python object structure.

2. Create or choose the Python object: The next step is to create or choose the Python object that you want to pickle. This could be a data structure like a list, dictionary, or a custom object.

3. Open a file for writing: You need to open a file in binary mode for writing. This is where the pickled object will be stored.

4. Use pickle.dump(): The pickle.dump() function is used to write the Python object into the file. This function takes two arguments - the object and the file.

5. Close the file: After the object is written into the file, close the file using the close() method.

Here is a simple example:

import pickle

# Step 1: Import the pickle module
import pickle

# Step 2: Create or choose the Python object
data = {
    'a': [1, 2.0, 3, 4+6j],
    'b': ("character string", b"byte string"),
    'c': {None, True, False}
}

# Step 3: Open a file for writing
with open('data.pickle', 'wb') as f:

    # Step 4: Use pickle.dump()
    pickle.dump(data, f)

# Step 5: Close the file
f.close()

In this example, a dictionary object data is pickled into the file 'data.pickle'.