# Piping input from Kernel::open throws NotImplementedError

**URL:** <https://www.ruby-forum.com/t/piping-input-from-kernel-open-throws-notimplementederror/175906>\
**Category:** IronRuby\
**Created:** [September 22, 2009, 5:44pm UTC](https://www.ruby-forum.com/t/piping-input-from-kernel-open-throws-notimplementederror/175906 "2009-09-22T17:44:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Xerxes\_Battiwalla](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/x/d9b06d/32.png) [@Xerxes\_Battiwalla](https://www.ruby-forum.com/u/Xerxes_Battiwalla)\
**Post date:** [September 22, 2009, 5:44pm UTC](https://www.ruby-forum.com/t/piping-input-from-kernel-open-throws-notimplementederror/175906/1 "2009-09-22T17:44:07Z")

</div>

Apologies for re-sending, but this never made it onto the ruby-forums  
because of the previous outage.

* * *

Hi there,

I’m trying to get the AutoTest/AutoSpec script for Cucumber to work  
under IronRuby. The cucumber\_mixin.rb file (line 82) in Cucumber tries  
to pipe input from a call to Kernel::open, and IR throws a  
NotImplementedException when this line is hit.

This is easily reproducible under iirb if you execute: open("|  
c:/windows/system32/notepad.exe")

Is this something on your radar to be fixed soon?

Many thanks,  
Xerxes.