Python EXE Too Large? Simple PyInstaller Fix Using Virtual Environment
Are your PyInstaller .exe files HUGE—like 500MB, 700MB, or even bigger?
In today’s video, I show you exactly why this happens and how to fix it instantly by using the correct Python virtual environment (venv) setup.
Many people accidentally build their EXE using the system Python installation, which includes tons of unnecessary libraries. By making sure PyInstaller is installed inside your virtual environment, your EXE size can shrink drastically.
In my case:
750MB → 150MB!
In this tutorial, I cover:
✔ Why you MUST use a virtual environment
✔ How to check where Python, pip, and PyInstaller are installed
✔ How to fix PyInstaller picking the wrong Python
✔ How to reinstall PyInstaller correctly inside venv
✔ How to rebuild a clean, smaller EXE for your project
This guide is beginner-friendly and perfect for Python developers creating Windows executables.
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Thank you for watching!
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