Question

Whenever I run any jython program in Eclipse, I got the following error in the beginning of the output:

‘ Failed to get environment, environ will be empty: (0, ‘Failed to execute command ([\’sh\’, \’-c\’, \’env\’]): java.io.IOException: Cannot run program ‘sh’: Crea teProcess error=2, The system cannot find the file specified’)

First, my environment is:

Windows 2008

JDK 1.6.0u10

jython 2.2.1

I did some digging, and I realized that this message is produced in the function javaos.getenv(). Whenever I call the javaos.getenv() function, it throws the following error:

C:\jython2.2.1>java -jar jython.jar

import javaos

print javaos.getenv(‘user.name’)

Failed to get environment, environ will be empty: (0, ‘Failed to execute command ([\’sh\’, \’-c\’, \’env\’]): java.io.IOException: Cannot run program ‘sh’: Crea teProcess error=2, The system cannot find the file specified’)

This is strange, because I’m currently using a Windows machine, not an Unix.

Answer 1

Try to uncomment and change the os setting in the ‘registry’ file

(it is in the same directory as your jython.jar / i hope)

# python.os determines operating-specific features, similar to and overriding the # Java property 'os.name'. # Some generic values are also supported: 'nt', 'ce' and 'posix'. # Uncomment the following line for the most generic OS behavior available. #python.os=None python.os=nt # try nt or dos