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Ethereum is becoming the focus of the market, while Bitcoin is relatively quiet. 1. The rise in Ethereum prices is due to its technological upgrades (such as The Merge), deflation mechanism (EIP-1559) and active on-chain data (such as DApp usage and active address growth). 2. The deep reason for the transfer of market momentum is that Ethereum is a diversified narrative as a decentralized application platform, covering fields such as DeFi, NFT, GameFi, etc., attracting a large number of developers and users, and forming a strong ecological effect. 3. Bitcoin still plays the role of "digital gold" and emphasizes store of value, while Ethereum is more like the "digital world operating system", providing innovative application infrastructure, and the two complement each other rather than replace them. 4. In terms of technical analysis, investors can use the moving average

shutil.rmtree() is a function in Python that recursively deletes the entire directory tree. It can delete specified folders and all contents. 1. Basic usage: Use shutil.rmtree(path) to delete the directory, and you need to handle FileNotFoundError, PermissionError and other exceptions. 2. Practical application: You can clear folders containing subdirectories and files in one click, such as temporary data or cached directories. 3. Notes: The deletion operation is not restored; FileNotFoundError is thrown when the path does not exist; it may fail due to permissions or file occupation. 4. Optional parameters: Errors can be ignored by ignore_errors=True

Install the corresponding database driver; 2. Use connect() to connect to the database; 3. Create a cursor object; 4. Use execute() or executemany() to execute SQL and use parameterized query to prevent injection; 5. Use fetchall(), etc. to obtain results; 6. Commit() is required after modification; 7. Finally, close the connection or use a context manager to automatically handle it; the complete process ensures that SQL operations are safe and efficient.

Open Yandex browser; 2. Search for "Binance Official Website" and enter the official website link with "binance"; 3. Click the "Download" or mobile phone icon on the page to enter the download page; 4. Select the Android version; 5. Confirm the download and obtain the installation file package; 6. After the download is completed, click on the file and follow the prompts to complete the installation; you must always download through the official channel to avoid malware, pay attention to application permission requests, and regularly update the application to ensure security. The entire process requires careful identification of the official website and reject suspicious links, and finally successfully install the Binance app.

Use multiprocessing.Queue to safely pass data between multiple processes, suitable for scenarios of multiple producers and consumers; 2. Use multiprocessing.Pipe to achieve bidirectional high-speed communication between two processes, but only for two-point connections; 3. Use Value and Array to store simple data types in shared memory, and need to be used with Lock to avoid competition conditions; 4. Use Manager to share complex data structures such as lists and dictionaries, which are highly flexible but have low performance, and are suitable for scenarios with complex shared states; appropriate methods should be selected based on data size, performance requirements and complexity. Queue and Manager are most suitable for beginners.

Use boto3 to upload files to S3 to install boto3 first and configure AWS credentials; 2. Create a client through boto3.client('s3') and call the upload_file() method to upload local files; 3. You can specify s3_key as the target path, and use the local file name if it is not specified; 4. Exceptions such as FileNotFoundError, NoCredentialsError and ClientError should be handled; 5. ACL, ContentType, StorageClass and Metadata can be set through the ExtraArgs parameter; 6. For memory data, you can use BytesIO to create words

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Class-BasedViews (CBV) in Django provides more efficient view handling by encapsulating common operations. 1. Define the model Article, including title, content and time fields; 2. Use ListView to display the article list, and arrange it in reverse order in the creation time; 3. Use DetailView to display the details of a single article; 4. Use CreateView to create a new article, and the form contains title and content fields, and jump to the list page after success; 5. Use UpdateView to update the article, and return to the details page after saving; 6. Use DeleteView to delete the article, and redirect it to the list page after confirmation; 7. Configure the URL mode to map each view to ensure the correct path