Which of the following statements is true?a)Pickling creates an object from a sequence of bytes.b)Pickling is used for object serialization.c)Pickling is used for object deserialization.d)Pickling is used to manage all types of files in Python.Correct answer is option 'B'. Can you explain this answer?

Question

Answer

Pickle in Python is primarily used in serializing and deserializing a Python object structure. In other words, it's the process of converting a Python object into a byte stream to store it in a file/database, maintain program state across sessions, or transport data over the network.

Answer

Pickling is used for object serialization.

Serialization is the process of converting an object into a format that can be stored or transmitted. In Python, pickling is a way to achieve object serialization. It allows us to convert complex objects into a byte stream, which can be saved to a file or sent over a network. Later, this byte stream can be converted back into the original object using a process called deserialization.

Explanation:

1. What is pickling?
Pickling is a way to serialize objects in Python. It is a process of converting a Python object hierarchy into a byte stream. This byte stream can be stored in a file or transmitted over a network. Pickling is useful when we want to save the state of an object and later recreate it when needed.

2. How does pickling work?
When pickling an object, Python converts the object's state (its instance variables and their values) into a format that can be easily stored and reconstructed. This format is a binary representation of the object's data, which can be written to a file or transferred over a network.

3. Purpose of pickling:
The main purpose of pickling is object serialization. It allows us to save the state of an object and later restore it. This is particularly useful when working with complex objects, such as instances of custom classes, dictionaries, lists, etc.

4. Usage of pickling:
Pickling is commonly used in scenarios such as:
- Saving and loading machine learning models: Trained models can be pickled to disk and later loaded for making predictions.
- Caching: Pickling allows us to cache the results of expensive computations and retrieve them quickly instead of recomputing.
- Interprocess communication: Pickling enables objects to be passed between different processes or even different machines.

Conclusion:
In summary, the statement 'Pickling is used for object serialization' is true. Pickling is a mechanism in Python that enables us to convert objects into a byte stream, facilitating storage and transmission. It is widely used for object serialization, allowing the preservation and reconstruction of object states.

Similar Humanities/Arts Doubts

Which of the following statements is true?

Which of the following statements regarding alluvial soils is/are true?Statement I: The Himalayan river systems deposit alluvial soils in the south of India, giving rise to the entire southern plains.Statement II: On the basis of age, alluvial soil can be categorised into three kinds.

Which of the following statements is true regarding social structures in early Indian societies?Statement I: The Manusmriti allowed women to inherit property equally as men.Statement II: The Mahabharata often reflects social practices that were normative for ruling elites.

Top Courses for Humanities/ArtsView all

Chapter Notes for Humanities

NCERT Books & Solutions for Humanities

Online MCQ Tests for Humanities

Short & Long Question Answers for Humanities

Geography Class 11

Top Courses for Humanities/Arts

Top Courses for Humanities/Arts

Suggested Free Tests

Related Content

Humanities Courses

Other Courses

How To Prepare?

Other Exams

Company