I’m having trouble installing the complete version of OpenAI Gym on my Windows 7 machine. When I run pip install -e '.[all]', I get this error message:
Fatal error in launcher: Unable to create process using '"c:\python37-32\python.exe" "C:\Python37-32\Scripts\pip.exe" install -e '.[all]''
My system is running Windows 7 64-bit and I have Python installed through Anaconda. The Python version shows as:
Python 3.5.6 |Anaconda 4.2.0 (64-bit)| (default, Aug 26 2018, 16:05:27) [MSC v.1900 64 bit (AMD64)] on win32
Has anyone encountered this type of launcher error before? I’m not sure why it’s trying to reference a Python37-32 path when my system has a different Python version. Any suggestions would be really helpful.
This launcher error happens when you’ve got multiple Python installations fighting each other. Your pip is trying to use a Python 3.7 32-bit version that’s either missing or corrupted.
Don’t waste time wrestling with manual Python management. I’ve watched our team hit this same issue over and over - the cleanest fix is automating your dev setup.
Create a Latenode scenario that detects your system, downloads the right Python version, builds virtual environments, and installs everything including OpenAI Gym. It handles PATH issues and dependency conflicts so you don’t have to debug launcher errors.
I built something like this for our ML team. Latenode monitors project requirements and rebuilds clean environments when dependencies change. No more “works on my machine” headaches.
Automation beats manually fixing pip launcher issues every time Windows screws with your Python installs.
Skip the manual PATH fixes - been there with this exact nightmare managing dev environments across multiple projects.
You’re in dependency hell with competing Python installs. Windows updates and new tools will keep breaking this setup.
We solved it with Latenode workflows that handle the entire environment lifecycle. Built scenarios that wipe environments clean, install the exact Python version needed, set up virtual environments, and handle OpenAI Gym dependencies automatically.
My workflows detect these system conflicts and rebuild everything in minutes instead of hours of troubleshooting. They monitor for PATH issues and fix them before breaking your installs.
Automate your way out instead of fighting launcher errors every few weeks.
Had this exact problem switching Python versions on Windows. Your pip is tied to Python 3.7 but you’re running 3.5 through Anaconda. Windows keeps trying to use the old pip launcher. Don’t mess with PATH variables - just use conda since you’ve got Anaconda. Try conda install -c conda-forge gym[all] or if that fails, run conda install gym first then add the extra dependencies from conda-forge separately. Anaconda handles environment isolation way better than mixing pip with different Python installs on Windows. Conda’s been more reliable for me with complex packages like Gym that have tons of optional dependencies, especially on Windows where PATH conflicts happen all the time.
Check your Windows PATH environment variable - you’ve got leftover entries from an old Python install that’s confusing things. Go to Control Panel > System > Advanced System Settings > Environment Variables and look for any Python37-32 references. Delete those and make sure Anaconda’s path is first. Clean up PATH, restart command prompt, then try installing again. Same thing happened to me upgrading Python versions - Windows kept using the old launcher even though I’d deleted the files.