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How to safely handle large files in Python and persist read progress
15 Mar 2026
The Python standard library does not provide a file operation function that "reads and deletes a line", but it can record the processed line numbers through an external progress file to implement breakpoint-resumable file processing and avoid repeated reading and writing of the entire data.
How to safely process large files in Python and log processing progress (avoiding repeated reading or rewriting of the entire file)
22 Feb 2026
The Python standard library does not provide a built-in function for "reading one line and deleting one line", but it can record the processed line numbers through an external progress file to implement breakpoint-resumable file processing and avoid performance and reliability problems caused by frequent file rewriting.
Detailed explanation of ZipException in Java_Handling scenarios where the compressed package format is illegal or the password is incorrect
12 Feb 2026
ZipException is mainly caused by file damage or encryption without providing a password. You need to use system tools to verify the validity of the file first, and then check the Java API usage, JDK version and third-party library password processing logic.
PHP image processing class library and demonstration sharing, php image processing class library_PHP tutorial
12 Jul 2016
PHP image processing class library and demonstration sharing, PHP image processing class library. PHP image processing class library and demonstration sharing, PHP image processing class library I simply wrote a PHP image processing class library. Although it has relatively few functions, it is not too advanced at present and will be used in the future.
Parsing complex CSV file headers using Pandas and regular expressions
25 Jan 2026
This article details how to use Python's re module and the Pandas library to effectively parse CSV file headers containing non-standard, structured metadata. By separately processing the first line of the file and subsequent data, and combining regular expressions to accurately extract key information, we can convert the complex header data into a structured DataFrame, while smoothly loading the main content of the file, ensuring the flexibility and accuracy of data processing.
Merge multiple XML files into one: Python implementation guide
29 Nov 2025
This document is intended to guide readers on how to use Python to merge multiple XML files into a single file for keyword analysis or other processing. We will obtain the XML content through the requests library and use the lxml library to ensure that the final merged file is well-formed XML. Additionally, methods for handling XML declarations and ensuring code robustness are discussed.
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