tried my best

python · negativenagesh · Jul 26, 2024 · Jul 26, 2024 · Jul 26, 2024 · Jul 26, 2024
commit 2d25094995fbf24ca974d30362dc69a73fdf925d
@@ -369,7 +369,7 @@ Module functions
    Create a Binary object to handle binary data in SQLite.
 
    :param data:
-       The binary data to be encapsulated. This should be a 
+      The binary data to be encapsulated. This should be a 
    :term:`bytes-like object`.
 
    The :func:`Binary` function encapsulates binary data to ensure proper handling
@@ -379,40 +379,44 @@ Module functions
    By using :func:`Binary`, developers can ensure robust handling of binary data in SQLite,
    preventing data corruption and enhancing application reliability.
 
-   **Examples:**
-
-   Basic example of storing and retrieving binary data:
+   **Basic example of storing and retrieving binary data:**
 
    .. code-block:: python
 
-       import sqlite3
-
-       # Create a connection and cursor
-       conn = sqlite3.connect(':memory:')
-       cursor = conn.cursor()
-
-       # Create a table
-       cursor.execute('''
-       CREATE TABLE files (
-           name TEXT,
-           data BLOB
-       )
-       ''')
-
-       # Insert binary data
-       binary_data = bytes("abc", "utf-8")
-       query = 'INSERT INTO files (name, data) VALUES (?, ?)'
-       values = ('example.txt', sqlite3.Binary(binary_data))
-       cursor.execute(query, values)
-
-       conn.commit()
-
-       # Retrieve binary data
-       cursor.execute('SELECT data FROM files WHERE name=?', ('example.txt',))
-       blob_data = cursor.fetchone()[0]
-
-       with open('retrieved_example.txt', 'wb') as file:
-            file.write(blob_data)
+      import sqlite3
+      import pickle
+
+      # Create a connection and cursor
+      with sqlite3.connect(':memory:') as conn:
+         cursor = conn.cursor()
+
+      # Create a table
+      cursor.execute('''
+      CREATE TABLE files (
+         id INTEGER PRIMARY KEY,
+         name TEXT,
+         data BLOB)
+      ''')
+
+      # Insert binary data
+      binary_data = pickle.dumps({'foo': 42, 'bar': 1337})
+      query = 'INSERT INTO files (name, data) VALUES (?, ?)'
+      values = ('example.pkl', sqlite3.Binary(binary_data))
+      cursor.execute(query, values)
+
+      # Retrieve binary data
+      cursor.execute('SELECT data FROM files WHERE name=?', ('example.pkl',))
+      blob_data = cursor.fetchone()[0]
+
+      # Deserialize the binary data using pickle
+      retrieved_data = pickle.loads(blob_data)
+      print(retrieved_data)  # This should print: {'foo': 42, 'bar': 1337}
+
+      # Save retrieved data to a file
+      with open('retrieved_example.txt', 'wb') as file:
+         file.write(blob_data)
+
+      conn.close()
 
 .. function:: complete_statement(statement)