Web Reference: You write "It seems to me like the connection to the database is not closed before the second connection is attempted" but, in fact, there is no "second connection" to the database. Apr 15, 2025 · This comprehensive guide explores Python's sqlite3.ProgrammingError exception, which occurs when incorrect API usage is detected. We'll cover common causes, error handling patterns, and practical examples. It's generally not an error with the SQL syntax itself (that would often be an sqlite3.OperationalError), but rather with the surrounding Python code that prepares, executes, or manages the SQL operation. Here are the most frequent scenarios where you'll encounter this error, along with sample code showing the problem and the correct way to do it.
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