react-native raises weird python error when initing app - react-native

Question

I just typed npx react-native init cinetogo, and I got this error:
stw041269:mobile hugovillalobos$ npx react-native init cinetogo
gyp ERR! configure error
gyp ERR! stack Error: Command failed: /Users/hugovillalobos/anaconda3/bin/python -c import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack File "<string>", line 1
gyp ERR! stack import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack ^
gyp ERR! stack SyntaxError: invalid syntax
gyp ERR! stack
gyp ERR! stack at ChildProcess.exithandler (child_process.js:294:12)
gyp ERR! stack at ChildProcess.emit (events.js:198:13)
gyp ERR! stack at maybeClose (internal/child_process.js:982:16)
gyp ERR! stack at Socket.stream.socket.on (internal/child_process.js:389:11)
gyp ERR! stack at Socket.emit (events.js:198:13)
gyp ERR! stack at Pipe._handle.close (net.js:606:12)
gyp ERR! System Darwin 17.7.0
gyp ERR! command "/Users/hugovillalobos/.nvm/versions/node/v10.16.0/bin/node" "/Users/hugovillalobos/.nvm/versions/node/v10.16.0/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /Users/hugovillalobos/.npm/_npx/19812/lib/node_modules/react-native/node_modules/fsevents
gyp ERR! node -v v10.16.0
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok
I haven't found any reference to anybody with the same error,

Answer 1

According to this answer,
Node.js is built with GYP
and According to this answer,
node uses some python scripts under the hood, though Node is largely written in C++
The problem in your case is that you've installed Anaconda version 3 which has python 3.x installed. But for Node needs python 2.x to work with GYP.
As you can see in the log, there is some syntax error:
gyp ERR! stack import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack ^
gyp ERR! stack SyntaxError: invalid syntax
The print statement uses the syntax of Python 2.x, but your anaconda has python 3.x. So it throws Syntax Error.
Solution: Install python 2.x (2.6 or 2.7), either by installing anaconda 2 or a standalone python 2.x version, and then try to execute npx.