gyp ERR! configure error
gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
gyp ERR! stack at PythonFinder.failNoPython (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\node_modules\node-gyp\lib\configure.js:484:19)
gyp ERR! stack at PythonFinder.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\node_modules\node-gyp\lib\configure.js:509:16)
gyp ERR! stack at C:\Program Files\nodejs\node_modules\npm\node_modules\graceful-fs\polyfills.js:284:29
gyp ERR! stack at FSReqWrap.oncomplete (fs.js:149:21)
gyp ERR! System Windows_NT 10.0.18362
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\node_modules\\npm-lifecycle\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild"
gyp ERR! cwd E:\test-proj\Angular\ionic-test\node_modules\ed25519
gyp ERR! node -v v10.0.0
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok
Your problem is about python, not node or angular. There are a lot of questions about python path problem like:
npm - "Can't find Python executable "python", you can set the PYTHON env variable."
https://github.com/iost-official/explorer/issues/1
https://hisk.io/how-to-fix-node-js-gyp-err-cant-find-python-executable-python-on-windows/