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How to Index and Slice Strings in Python: Complete Guide (2025–2026) — step-by-step tutorial on Progressive Robot

How to Index and Slice Strings in Python: Complete Guide (2025–2026)

Learning how to index and slice strings in Python is one of the most essential and frequently used skills in Python programming — strings are sequences of characters, and being able to precisely access individual characters or extract substrings is crucial for text processing, data cleaning, parsing, web scraping, and almost every real-world Python project.

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How to Configure Nginx WebSocket Proxying on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure Nginx WebSocket Proxying on FreeBSD 12

Introduction Deploying configure nginx websocket proxying on freebsd 12 on a FreeBSD 12 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard […]

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How To Format Text in Python 3 — step-by-step Python tutorial on Progressive Robot

How To Format Text in Python 3

In this tutorial, we’ll go over some of the ways we can work with Python strings to make sure that all output text is formatted correctly. Topics we will cover include: quotes, apostrophes, multiple lines, escape characters, and raw strings.

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How to Configure SSL/TLS with OpenSSL on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure SSL/TLS with OpenSSL on FreeBSD 12

Introduction This guide explains how to Configure SSL/TLS with OpenSSL on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained […]

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How to Set Up a LAMP Stack on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up a LAMP Stack on FreeBSD 12

Introduction How to Set Up a LAMP Stack on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for […]

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How to Set Up a LEMP Stack on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up a LEMP Stack on FreeBSD 12

Introduction How to Set Up a LEMP Stack on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for […]

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