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I am using Eclipse 3.6.1 with PyDev 1.6.4 for developing a Google App Engine site. In my projects .pydevproject I want to set the path to the Google App Engine SDK based off an environment variable since I develop on my desktop and laptop (where the paths are slightly different) and I plan to check this file into source control and others environment may be different. In the XML below, I want to replace /home/jesse with the value read from an environment variable. For now I would be happy just using the current home directory. <?xml version="1.0" encoding="UTF-8" standalone="no"?> <?eclipse-pydev version="1.0"?> <pydev_project> <pydev_property name="org.python.pydev.PYTHON_PROJECT_INTERPRETER">Python 2.5</pydev_property> <pydev_property name="org.python.pydev.PYTHON_PROJECT_VERSION">python 2.5</pydev_property> <pydev_variables_property name="org.python.pydev.PROJECT_VARIABLE_SUBSTITUTION"> <key>GOOGLE_APP_ENGINE</key> <value>/home/jesse/projects/google_appengine</value> </pydev_variables_property> <pydev_pathproperty name="org.python.pydev.PROJECT_SOURCE_PATH"> <path>/app_html5rest</path> </pydev_pathproperty> <pydev_pathproperty name="org.python.pydev.PROJECT_EXTERNAL_SOURCE_PATH"> <path>${GOOGLE_APP_ENGINE}</path> <path>${GOOGLE_APP_ENGINE}/lib/django</path> <path>${GOOGLE_APP_ENGINE}/lib/webob</path> <path>${GOOGLE_APP_ENGINE}/lib/yaml/lib</path> </pydev_pathproperty> </pydev_project> I have tried: ${HOME} ${env.HOME} $HOME Google has not turned up much, any suggestions?

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