ImportError: No module named pysh

[1090325856]

hello, everyone. I have a problem, who can help me?!  when I compiled a image using yocto project, error message "ImportError: No module named pysh" appears. I ensure that I installed essential utilities,such as

gawk wget git-core diffstat unzip texinfo gcc-multilib \      build-essential chrpath socat cpio python python3 python3-pip python3-pexpect \      xz-utils debianutils iputils-ping libsdl1.2-dev xterm

However, this problem still exists when I run $bitbake core-image-sato, who can help me?

                                                                                                                        THANK YOU!!!

[b36401]

Please add Python Shell (pysh) module.

Have a great day,
Victor

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