mjpizz / node-virtualenv Goto Github PK

see pypa/virtualenv#1240

Hi,

I'm trying to follow your example but can't get the child process to spawn correctly. Here's my code:

var virtualenv = require("virtualenv"); var packagePath = require.resolve(__dirname + '/../../package.json'); var env = virtualenv(packagePath); var child = env.spawnPython(["../python/test.py"]);

and here's the error:

events.js:163 Uncaught Error: spawn /app/.node-virtualenv/bin/python ENOENT at exports._errnoException (util.js:1050) at Process.ChildProcess._handle.onexit (internal/child_process.js:193) at onErrorNT (internal/child_process.js:367) at _combinedTickCallback (internal/process/next_tick.js:80) at process._tickCallback (internal/process/next_tick.js:104)

Am I missing something obvious? My goal is to create a virtualenv when my app loads and then run all of my python code there so I don't have to worry about missing python modules. I'm running this on OS X with Python 2.7

Thanks

I'm not able to run the post install. I'm using node-virtualenv 0.3.0, and just updated virtualenv via pip.

This is the error I'm getting: Error: unable to retrieve version information for virtualenv

I appended the err object that's part of the error handler to see what that said and here it is: Error: Invalid XML-RPC message.

From googling around it seems this might be a http vs https issue, but I don't know for certain. It seems you're using pypi to determine virtualenv version. On this line: https://github.com/lukaszb/pypi/blob/master/src/pypi/client.coffee#L3 we can see it's hitting http://pypi.python.org/pypi. Curling this returns a 301 redirect to https which I believe is failing. If you try to switch the url to https there's an error about not supporting https.

Maybe this is an issue that should be brought up with pypi, not sure. Any ideas?

Symlink Arbitrary File Overwrite:

The tar module earlier than version 2.0.0 allow for archives to contain symbolic links that will overwrite targets outside the expected path for extraction.

I'm trying to make node-virtualenv work on Windows 10. I developed this project under a Fedora 23 installation, made a commit to a git repository and then fresh cloned it to a Windows 10 to make sure it would work. It's throwing the following error during postinstall:

> bower install && virtualenv-postinstall

Finding virtualenv 15.0.0
Downloading https://pypi.python.org/packages/source/v/virtualenv/virtualenv-15.0.0.tar.gz
Unzipping https://pypi.python.org/packages/source/v/virtualenv/virtualenv-15.0.0.tar.gz
Creating C:\Users\bruno\git\task-bruno-finger\.node-virtualenv
Cleaning C:/Users/bruno/git/task-bruno-finger/.node-virtualenv/.node-virtualenv-sources
events.js:85
      throw er; // Unhandled 'error' event
            ^
Error: spawn python ENOENT
  at exports._errnoException (util.js:746:11)
  at Process.ChildProcess._handle.onexit (child_process.js:1053:32)
  at child_process.js:1144:20
  at process._tickCallback (node.js:355:11)

I have Python 2.7 installed. In the end I have an empty .node-virtualenv folder in the root of my project where I should have the virtualenv installation.

Any suggestion?

$ ./node_modules/.bin/virtualenv-postinstall
(node:12121) fs: re-evaluating native module sources is not supported. If you are using the graceful-fs module, please update it to a more recent version.
Finding virtualenv *
Error: unable to retrieve version information for virtualenv
  at /Users/myuser/Projects/myproject/node_modules/virtualenv/lib/virtualenv.js:184:14
  at /Users/myuser/Projects/myproject/node_modules/pypi/src/pypi/client.coffee:15:17
  at /Users/myuser/Projects/myproject/node_modules/xmlrpc/lib/client.js:130:9
  at callback (/Users/myuser/Projects/myprojectt/node_modules/xmlrpc/lib/deserializer.js:30:7)
  at Deserializer.onDone (/Users/myuser/Projects/myproject/node_modules/xmlrpc/lib/deserializer.js:79:12)
  at emitNone (events.js:86:13)
  at SAXStream.emit (events.js:185:7)
  at Object.SAXStream._parser.onend (/Users/myuser/Projects/myproject/node_modules/xmlrpc/node_modules/sax/lib/sax.js:190:10)
  at emit (/Users/myuser/Projects/myproject/node_modules/xmlrpc/node_modules/sax/lib/sax.js:640:35)
  at end (/Users/myuser/Projects/myproject/node_modules/xmlrpc/node_modules/sax/lib/sax.js:683:5)
  at Object.SAXParser.end (/Users/myuser/Projects/myproject/node_modules/xmlrpc/node_modules/sax/lib/sax.js:154:24)
  at SAXStream.end (/Users/myuser/Projects/myproject/node_modules/xmlrpc/node_modules/sax/lib/sax.js:248:18)
  at IncomingMessage.onend (_stream_readable.js:512:10)
  at IncomingMessage.g (events.js:286:16)
  at emitNone (events.js:91:20)
  at IncomingMessage.emit (events.js:185:7)
  at endReadableNT (_stream_readable.js:973:12)
  at _combinedTickCallback (internal/process/next_tick.js:74:11)
  at process._tickCallback (internal/process/next_tick.js:98:9)

I have both Python 2 and Python 3 installed, virtualenv is installed under both, too.

$ python --version
Python 2.7.12
$ python3 --version
Python 3.5.2
$ virtualenv --version
1.11.4
$ which virtualenv
/usr/local/bin/virtualenv

Has anyone had success building this project for Electron? I got it working quite easily in a development environment, but no success when packaging for distribution. I suspect that packaging with a prebuilt copy will do the trick, similar to the issue that SerialPort users were having, but I thought I'd pose the question here before going down the rabbit hole. It's a really great project and has come in very handy beyond my core need for it.

Hi, is it possible for me to use this package based a a virtual environment already set up? If so, how should I configure it?

For example, if you add new flags in your package.json like:

"virtualenv": {
  "flags": ["--python=Python2.7"]
}

For convenience, the virtualenv should be rebuilt so that it has the correct Python version (rather than requiring the user to remove the old directory first).