PyExecJS

Run JavaScript code from Python.

PyExecJS is a porting of ExecJS from Ruby. PyExecJS automatically picks the best runtime available to evaluate your JavaScript program, then returns the result to you as a Python object.

A short example:

>>> import execjs
>>> execjs.eval("'red yellow blue'.split(' ')")
['red', 'yellow', 'blue']
>>> ctx = execjs.compile("""
...     function add(x, y) {
...         return x + y;
...     }
... """)
>>> ctx.call("add", 1, 2)
3

Of course, you can pick particular JavaScript runtime by get() function:

>>> default = execjs.get() # the automatically picked runtime
>>> default.eval("1 + 2")
3
>>> jscript = execjs.get("JScript")
>>> jscript.eval("1 + 2")
3
>>> node = execjs.get("Node")
>>> node.eval("1 + 2")
3

If EXECJS_RUNTIME environment variable is specified, PyExecJS pick the JavaScript runtime as a default:

>>> #execjs.get().name # this value is depends on your environment.
>>> os.environ["EXECJS_RUNTIME"] = "Node"
>>> execjs.get().name
'Node.js (V8)'

PyExecJS supports these runtimes:

PyV8 - A python wrapper for Google V8 engine,
Node.js
Apple JavaScriptCore - Included with Mac OS X
Mozilla SpiderMonkey
Microsoft Windows Script Host (JScript)

Installation

$ pip install PyExecJS

$ easy_install PyExecJS

License

Released under the MIT license. See LICENSE for details.

Changes

1.0.5

Supported Python 3.3
Fixed file handle leaking
Fixed issue with passenger-nginx-4.0

1.0.4

Removed “import execjs” (it prevent execution of setup.py by Python 2.6)

1.0.3

Javascript sources were embeded in init.py. ‘which’ command were reimplemented by pure python.

1.0.2

Python 2.6.x was supported.

1.0.1

Forgotten shell=True was added to Popen.

1.0.0

First release.

Release files for PyExecJS 1.0.5

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distributions (sdists)

Source distribution for PyExecJS 1.0.5
File	Size	Uploaded
PyExecJS-1.0.5.zip	15.6 kB	Nov 6, 2014	Details
PyExecJS-1.0.5.tar.gz	10.1 kB	Nov 6, 2014	Details

Release files / PyExecJS-1.0.5.zip

Download URL	PyExecJS-1.0.5.zip
Size	15.6 kB
Tags	Source
SHA-256 checksum How to use checksums	`0ddfb6cc6de41dc1c2def52134ec26146acb9679b71c38692618b63108579ab7`
BLAKE2b-256 checksum How to use checksums	`12ffaf8bf21e2d6ae48280ca1e28e781cd2c138b188e63058b00289734622a45`
Upload date	Nov 6, 2014
Uploaded using Trusted Publishing? What is trusted publishing?	No

Release files / PyExecJS-1.0.5.tar.gz

Download URL	PyExecJS-1.0.5.tar.gz
Size	10.1 kB
Tags	Source
SHA-256 checksum How to use checksums	`95adfddc64aaf95d330c715a248ce0ff32facf33740c6de619658b5c588939fb`
BLAKE2b-256 checksum How to use checksums	`a5d36068858d2c34cea1ad4dd24184758c9904c7dc1293146bb6bf9f09812da0`
Upload date	Nov 6, 2014
Uploaded using Trusted Publishing? What is trusted publishing?	No