Emscripten installation fails with Python 3 on macOS

[immakermatty]

I encountered an issue while trying to install Emscripten using the ./emsdk install latest command. The installation failed with the following error message:

Error: Downloading URL 'https://storage.googleapis.com/webassembly/emscripten-releases-builds/deps/node-14.18.2-64bit.tar.xz'..

I tried running the command again, but the issue persisted. I then tried installing an older version of Emscripten using the ./emsdk install <version> command, but I encountered the same issue.

I was able to resolve the issue by installing Python 2 and running the ./emsdk install latest command using Python 2.

I'm using macOS version 13.0.1 (22A400), and I have the latest version of Python 3.11.1 installed.

[immakermatty]

Full error from the command line

`matejsuchanek@Matejs-MacBook-Pro emsdk % python3 ./emsdk.py install latest
Resolving SDK alias 'latest' to '3.1.28'
Resolving SDK version '3.1.28' to 'sdk-releases-upstream-30b9e46ddcea66e91530559379089002d8b692cf-64bit'
Installing SDK 'sdk-releases-upstream-30b9e46ddcea66e91530559379089002d8b692cf-64bit'..
Installing tool 'node-14.18.2-64bit'..
Error: Downloading URL 'https://storage.googleapis.com/webassembly/emscripten-releases-builds/deps/node-v14.18.2-darwin-x64.tar.gz': <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1108)>
Warning: Possibly SSL/TLS issue. Update or install Python SSL root certificates (2048-bit or greater) supplied in Python folder or https://pypi.org/project/certifi/ and try again.
error: installation failed!`

BTW The text of the issue was written by ChatGPT

I just described your bug report guidelines and what went wrong during the installation.

[sbc100]

Can you show the follow command you typed along with the full output? The file that em
sdk it trying to download looks a little odd because the filename is node-14.18.2-64bit.tar.xz. This filename should really include the OS name and be one of the following:

• node-v14.18.2-darwin-x64.tar.gz
• node-v14.18.2-linux-arm64.tar.xz
• node-v14.18.2-linux-armv7l.tar.xz
• node-v14.18.2-linux-x64.tar.xz
• node-v14.18.2-win-x64.zip

Given you are on macOS I would expect it to be node-v14.18.2-darwin-x64.tar.gz.

Can you try running the same install command but with EMSDK_VERBOSE=1

[sbc100]

Wait...... I just saw that the actual error was:

[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1108)>
Warning: Possibly SSL/TLS issue. Update or install Python SSL root certificates (2048-bit or greater) supplied in Python folder or https://pypi.org/project/certifi/ and try again.

and that the filename being downloaded does include the string darwin.

So this is, I think, and issue with your local python installation. Other folks have run into this in the past and there are some fixed out here I believe. Googling for emsdk ssl gives some pointers.

BTW, where did the node-14.18.2-64bit.tar.xz filename (the one that doesn't contain the string dawrin) come from? Did chatgpt make that up?

[sbc100]

Fixed in #1355