easy_install.py 文件源码

def fix_jython_executable(executable, options):
    if sys.platform.startswith('java') and is_sh(executable):
        # Workaround for Jython is not needed on Linux systems.
        import java
        if java.lang.System.getProperty("os.name") == "Linux":
            return executable

        # Workaround Jython's sys.executable being a .sh (an invalid
        # shebang line interpreter)
        if options:
            # Can't apply the workaround, leave it broken
            log.warn(
                "WARNING: Unable to adapt shebang line for Jython,"
                " the following script is NOT executable\n"
                "         see http://bugs.jython.org/issue1112 for"
                " more information.")
        else:
            return '/usr/bin/env %s' % executable
    return executable