Code Explanation:
🔹 1. Importing the pickle Module
import pickle
✅ Explanation
pickle is Python's built-in module for object serialization.
It converts Python objects into bytes and can restore them later.
Main Functions:
pickle.dumps() → Object ➜ Bytes
pickle.loads() → Bytes ➜ Object
pickle Module
│
▼
┌─────────────┐
│ dumps() │
│ loads() │
└─────────────┘
Nothing executes yet.
🔹 2. Creating a Dictionary
data = {"x": 10}
✅ Explanation
A dictionary named data is created.
Current Memory
data
↓
{
"x": 10
}
Visual Representation
data
│
▼
+-----------+
| x → 10 |
+-----------+
This dictionary exists in memory.
🔹 3. Converting the Dictionary into Bytes
pickle.dumps(data)
✅ Explanation
pickle.dumps() serializes the dictionary into a bytes object.
It does not return another dictionary.
Current Memory
Dictionary
↓
{
"x":10
}
↓
pickle.dumps()
↓
Binary Bytes
Example Representation
b'\x80\x04\x95...'
The exact bytes may vary between Python versions.
🔹 4. Restoring the Object
pickle.loads(pickle.dumps(data))
✅ Explanation
Python now reads those bytes.
loads() reconstructs the original object.
Current Memory
Bytes
↓
pickle.loads()
↓
New Dictionary
{
"x":10
}
Visual Representation
Original
data
│
▼
+-----------+
| x → 10 |
+-----------+
│
pickle.dumps()
▼
Binary Data
│
pickle.loads()
▼
New Dictionary
+-----------+
| x → 10 |
+-----------+
Notice:
The new dictionary has the same values, but it is a different object in memory.
🔹 5. Storing the New Object
obj = pickle.loads(pickle.dumps(data))
✅ Explanation
obj now refers to the newly created dictionary.
Current Memory
data obj
│ │
▼ ▼
+-----------+ +-----------+
| x → 10 | | x → 10 |
+-----------+ +-----------+
These are two separate dictionary objects.
🔹 6. Comparing Objects
obj is data
✅ Explanation
The is operator checks whether both variables point to the exact same object in memory.
It does not compare values.
Memory Representation
data
Address
0x1000
obj
Address
0x2500
Since the memory addresses are different,
False
🔹 7. Printing the Result
print(obj is data)
✅ Explanation
Python prints the comparison result.
Output
False
🎯 Final Output
False
.png)
Posts
0 Comments:
Post a Comment