What does str mean in python string type parsing

Blockchain is a distributed and decentralized digital ledger technology. Its core principles include: 1. Distributed ledger ensures that data is stored simultaneously on all nodes; 2. Encryption technology, linking blocks through hash values to ensure that data is not tampered with; 3. Consensus mechanisms, such as PoW or PoS, ensure that transactions are agreed between nodes; 4. Decentralization, eliminating single point of control, enhancing censorship resistance; 5. Smart contracts, protocols for automated execution. Cryptocurrencies are digital assets issued based on blockchain. The operation process is: 1. The user initiates transactions and signs digitally; 2. The transactions are broadcast to the network; 3. The miner or verifier verifies the validity of the transaction; 4. Multiple transactions are packaged into new blocks; 5. Confirm the new zone through consensus mechanism

Through its Turing-complete smart contracts, EVM virtual machines and Gas mechanisms, Ethereum has built a programmable blockchain platform beyond Bitcoin, supporting diversified application ecosystems such as DeFi and NFT; its core advantages include a rich DApp ecosystem, strong programmability, active developer community and cross-chain interoperability; it is currently implementing consensus transformation from PoW to PoS through the upgrade of Ethereum 2.0, introducing beacon chains, verifier mechanisms and punishment systems to improve energy efficiency, security and decentralization; in the future, it will rely on sharding technology to realize data sharding and parallel processing, greatly improving throughput; at the same time, Rollup technology has been widely used as a Layer 2 solution, Optimistic Rollup and ZK-Rollu

Blockchain browser is a necessary tool for querying digital currency transaction information. It provides a visual interface for blockchain data, so that users can query transaction hash, block height, address balance and other information; its working principle includes data synchronization, parsing, indexing and user interface display; core functions cover querying transaction details, block information, address balance, token data and network status; when using it, you need to obtain TxID and select the corresponding blockchain browser such as Etherscan or Blockchain.com to search; query address information to view balance and transaction history by entering the address; mainstream browsers include Bitcoin's Blockchain.com, Ethereum's Etherscan.io, B

Usetracemalloctotrackmemoryallocationsandidentifyhigh-memorylines;2.Monitorobjectcountswithgcandobjgraphtodetectgrowingobjecttypes;3.Inspectreferencecyclesandlong-livedreferencesusingobjgraph.show_backrefsandcheckforuncollectedcycles;4.Usememory_prof

Table of Contents MOMOFUN Price Analysis What is MOMOFUN? AI-powered AI agent AI pool provides intelligent liquidity technology backbone: How the MemeFi model of ELIZA framework MOMOFUN works MOMOFUN's future MOMOFUN price analysis**Price**0.003709**Market value**29,533,834**Circulation supply**7,800,000,000 mm**Total supply**30,000,000,000 mm MM tokens (total supply 30 billion) assumes multiple key functions in the system ecosystem: Governance and voting (

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Python's logging module effectively tracks program events by flexibly configuring log levels, formats, and output targets. 1. Use logging.basicConfig() to quickly configure basic logs, but only the first call is valid; 2. Large applications should use logging.getLogger(__name__) to create named loggers to track the source; 3. Logs can be written to files through FileHandler; 4. Supports multiprocessors, such as output to files and consoles at the same time, and sets different levels respectively; 5. Log levels from low to high are DEBUG, INFO, WARNING, ERROR, CRITICAL, and sets visibility as needed; 6. Best practical

ETH exchange USDC is more suitable for users who pursue liquidity and cross-platform compatibility, while redemption DAI is more suitable for users who participate in the DeFi and DAO ecosystem; 1. The centralized platform fee is 0.1%~0.2%, and the DEX commission depends on the Gas fee. The main network is about 3 to 6 US dollars, and Layer2 can be less than 0.1 US dollars; 2. In terms of account arrival speed, the centralized platform is almost real-time, with on-chain transactions on average 30 seconds to 2 minutes; 3. USDC trading pairs are richer and more liquid, DAI is highly adaptable in the DeFi protocol and the handling fee is slightly lower in some pools; 4. It is recommended to avoid peak network operations, and small redemption is preferred. DEX transactions pay attention to contract authorization security to ensure stablecoin withdrawal network compatibility. Both are in the handling fee.