python
Safeguard articles tagged "python" — guides, analysis, and best practices for software supply chain and application security.
101 articles
Python: Check If a String Is a Valid URL (Safely)
How to check if a string is a URL in Python using urllib.parse, when to add validators, and why parseable does not mean safe for the URL you are about to fetch.
Python pickle.dump Explained, and Why It Can Get You Popped
How Python's pickle.dump actually works, a runnable example, and the deserialization risk that turns a saved object into remote code execution.
Python on macOS: A Security-Minded Setup Guide
Running Python on Mac OS is easy to get wrong in ways that bite you later. Here is how to install and isolate Python for Mac OS without the common security traps.
Is Python setup.py Still Safe? Security Risks and the Move to Building Wheels
python setup.py executes arbitrary code at install time and its legacy commands are deprecated. Here is what that means for security and how to build a wheel the modern way.
How to Install Python on a MacBook Safely (2025 Guide)
The macOS system Python is not the one you should build on. Here is how to install Python on a MacBook the right way, isolate projects, and avoid supply-chain surprises.
Python 2 vs Python 3: Differences and Why 2.x Is a Security Liability
The real differences between Python 2 and Python 3 — print, strings, division, integers — and why running anything on 2.x after its end of life is now a security decision, not a compatibility one.
Installing Python on Mac: A Safe, Step-by-Step Guide
Installing Python on Mac has a few paths, and the safest one keeps you off the system Python and away from sudo pip. Here is how to do it cleanly.
PyPI Malicious Packages 2025: Python's Growing Supply Chain Problem
PyPI faced a surge of malicious package uploads in early 2025, targeting data science, AI/ML, and cloud development workflows. Here's the full picture.
How to Install Python on macOS the Right Way
The fastest safe way to install Python on macOS is Homebrew plus a version manager, not the system Python. Here is the setup that keeps your machine and your dependencies clean.
How to Use Python on Mac: Install, Switch Versions, and Set a Default
Learning how to use Python on Mac starts with not touching the system Python. Here is a clean setup for installing, switching, and pinning versions.
Updating Python on macOS from the Terminal (Without Breaking Things)
How to update Python on a Mac terminal the safe way: Homebrew or pyenv for the interpreter, never the system copy, plus how to set your default version and keep old installs from lingering.
How to Download Python for Mac (Safely)
There are several ways to download Python for Mac. Here is how to pick the right one and verify what you install so you don't get a tampered interpreter.
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