All source files are in dos format (line endings with CR/LF). On Solaris the scripts were not executable due to this after installing RPyC. The files had to be converted to unix format (LF line endings) explicitly.
Would recommend storing all files in unix format since it works everywhere without any issue.
The issue is with reference to RPyC-3.1.0.tar.gz file available for download at sourceforge.
closed by 3ff0432