Sharing These Python Tips

2019年6月17日 | Miscellaneous

This article collects several practical Python tips for daily coding, including dictionary and set comprehensions, Counter, pretty JSON output, and a lightweight XML-RPC example.……

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Python Class Inheritance and Polymorphism

2019年6月3日 | Miscellaneous

This article introduces inheritance, polymorphism, isinstance(), and duck typing in Python with a simple Animal and Dog example.……

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Process Pools, Thread Pools, and Coroutines in Python

2019年6月2日 | Miscellaneous

This article explains Python process pools, thread pools, and coroutines from a practical concurrency angle, with examples of synchronous calls, asynchronous calls, and callback usage.……

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Python zipfile Module Instantiation and Parsing

2019年6月2日 | Miscellaneous

This article summarizes common zipfile usage in Python, including how to read ZIP archives, inspect ZipInfo, extract files, write archives, and build ZIP files in memory.……

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Summary of Python3 print function usage

2019年6月1日 | Miscellaneous

This article summarizes common Python 3 print() usage, including basic output, old-style formatting examples, floating-point formatting, and output control with end and sep.……

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Python Data Visualization - The Post-2000 Gaokao Generation

2019年6月1日 | Technology

This tutorial uses Gaokao exam data to build bar charts, line charts, and a China map with Python, giving a practical starter workflow for charts and pyecharts.……

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Parallelism in One Line of Python Code

2019年6月1日 | Technology

This article shows how Python map combined with thread or process pools can make simple parallelism much lighter for everyday scripts, especially with multiprocessing.dummy for IO-bound work.……

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Closing a Screen Session from Outside the Session

2019年5月21日 | Miscellaneous

This article shows how to terminate a specific GNU Screen session from outside the session and clarifies the difference between detaching from a session and actually ending it.……

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Yum Update Error 'rpmdb', Insufficient Space

2019年5月21日 | Miscellaneous

This guide shows how to fix yum update -y when Linux reports rpmdb open failed or runs out of disk space, including rebuilding the RPM database and cleaning old kernels.……

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Decoding Xunlei Thunder Links: Python and JavaScript Conversion Examples

2019年5月17日 | Miscellaneous

This article explains the conversion rule between ordinary URLs and thunder:// Xunlei links, and gives both Python and JavaScript examples for encoding and decoding.……

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Running Conda Command-Line Scripts on Windows

2019年5月17日 | Miscellaneous

This article explains why Conda commands often fail inside ordinary Windows batch files and shows a practical activate.bat pattern you can reuse.……

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Accelerating Python Code with Numba to C++-like Speeds

2019年5月15日 | Miscellaneous

This article introduces how Numba can speed up Python code with JIT compilation and gives a practical overview of where @jit, @njit, @vectorize, and GPU-related features are most useful.……

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