npm -g install tessel not working on Windows anymore

[Sygyzmundovych]

Hi. It worked on September 8 (the last time I ran the workshop using Tessel1 boards), but now all Windows users are getting errors like:

> usb@1.0.6 install C:\Users\i047306\AppData\Roaming\npm\node_modules\tessel\node_modules\usb
> node-pre-gyp install --fallback-to-build

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 failNoPython (C:\Users\i047306\AppData\Roaming\npm\node_modules\npm\node_modules\node-gyp\lib\configure.js:116:14)
gyp ERR! stack     at C:\Users\i047306\AppData\Roaming\npm\node_modules\npm\node_modules\node-gyp\lib\configure.js:71:11
gyp ERR! stack     at FSReqWrap.oncomplete (fs.js:95:15)
gyp ERR! System Windows_NT 10.0.10586
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\i047306\\AppData\\Roaming\\npm\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "configure" "--fallback-to-build
" "--module=C:\\Users\\i047306\\AppData\\Roaming\\npm\\node_modules\\tessel\\node_modules\\usb\\src\\binding\\usb_bindings.node" "--module_name=usb_bindings" "--module_path=C:\\Users\\i047306\
\AppData\\Roaming\\npm\\node_modules\\tessel\\node_modules\\usb\\src\\binding"
gyp ERR! cwd C:\Users\i047306\AppData\Roaming\npm\node_modules\tessel\node_modules\usb
gyp ERR! node -v v0.12.16
gyp ERR! node-gyp -v v3.0.1
gyp ERR! not ok
node-pre-gyp ERR! build error
node-pre-gyp ERR! stack Error: Failed to execute 'C:\Program Files\nodejs\node.exe C:\Users\i047306\AppData\Roaming\npm\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js configure --fallb
ack-to-build --module=C:\Users\i047306\AppData\Roaming\npm\node_modules\tessel\node_modules\usb\src\binding\usb_bindings.node --module_name=usb_bindings --module_path=C:\Users\i047306\AppData\
Roaming\npm\node_modules\tessel\node_modules\usb\src\binding' (1)
node-pre-gyp ERR! stack     at ChildProcess.<anonymous> (C:\Users\i047306\AppData\Roaming\npm\node_modules\tessel\node_modules\usb\node_modules\node-pre-gyp\lib\util\compile.js:83:29)
node-pre-gyp ERR! stack     at ChildProcess.emit (events.js:110:17)
node-pre-gyp ERR! stack     at maybeClose (child_process.js:1019:16)
node-pre-gyp ERR! stack     at Process.ChildProcess._handle.onexit (child_process.js:1091:5)
node-pre-gyp ERR! System Windows_NT 10.0.10586
node-pre-gyp ERR! command "node" "C:\\Users\\i047306\\AppData\\Roaming\\npm\\node_modules\\tessel\\node_modules\\usb\\node_modules\\node-pre-gyp\\bin\\node-pre-gyp" "install" "--fallback-to-bu
ild"
node-pre-gyp ERR! cwd C:\Users\i047306\AppData\Roaming\npm\node_modules\tessel\node_modules\usb
node-pre-gyp ERR! node -v v0.12.16
node-pre-gyp ERR! node-pre-gyp -v v0.6.4
node-pre-gyp ERR! not ok
Failed to execute 'C:\Program Files\nodejs\node.exe C:\Users\i047306\AppData\Roaming\npm\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js configure --fallback-to-build --module=C:\Users\
i047306\AppData\Roaming\npm\node_modules\tessel\node_modules\usb\src\binding\usb_bindings.node --module_name=usb_bindings --module_path=C:\Users\i047306\AppData\Roaming\npm\node_modules\tessel
\node_modules\usb\src\binding' (1)

Could you please check that?