unable to find python in $PATH when set up emscripten on centos7 docker environment

[59436830]

hi , after below steps i got an error : unable to find python in $PATH. i don't know why,but never find cases like mine on internet

1. install git、 python3、 cmake
   2.git clone from ....
   3.cd emsdk
2. emsdk install latest
3. emsdk activate latest
4. emcc --version

[sbc100]

Does the emsdk install latest command work? Is it just the final emcc --version that fails?

What does which python3 report?

[59436830]

do thank for your reply. the steps as i described above work fine except the strep 4. and the python3 also works fine. i can get the response from the command: python3 --version. besides, i paste the emsdk install latest command output below:

[root@002aec7f0815 emsdk]# ./emsdk install latest
Resolving SDK alias 'latest' to '2.0.30'
Resolving SDK version '2.0.30' to 'sdk-releases-upstream-c69458f1bbf3ef5b8da4e934de210659cc9bca04-64bit'
Installing SDK 'sdk-releases-upstream-c69458f1bbf3ef5b8da4e934de210659cc9bca04-64bit'..
Skipped installing node-14.15.5-64bit, already installed.
Skipped installing releases-upstream-c69458f1bbf3ef5b8da4e934de210659cc9bca04-64bit, already installed.
All SDK components already installed: 'sdk-releases-upstream-c69458f1bbf3ef5b8da4e934de210659cc9bca04-64bit'.

[sbc100]

Can you try running sh -x emcc ?

[sbc100]

And can you try which python3?

[59436830]

Can you try running sh -x emcc ?

here are my outputs:

• '[' -z '' ']'
• PYTHON=
• '[' -z '' ']'
  ++ which python3
• PYTHON=
• '[' -z '' ']'
  ++ which python
• PYTHON=
• '[' -z '' ']'
• echo 'unable to find python in $PATH'
  unable to find python in $PATH

[59436830]

And can you try which python3?
output is: /usr/local/python3

[59436830]

by the way, I set up emscripten on MAC OS X successfully with the same step, and I can get the correct outputs with command: emcc --version. seems this only happens on my docker development environment. finally , Would you please tell me if I can convert my objective-c source into asm.js or wasm. because my project is based on mac os x. convert objective c to c is really a grind。my project uses a lot of mac os sytem api which provided based on objective-c. I just want it running into a browser rather than a native program.

[sbc100]

There was a recent change to these launcher scripts that I think could be related: #15084

Can you try with emsdk install tot?