前面shell的作用就是为python代码选择解析器
#!/bin/bash # -*- mode: Python -*- """:" # bash code here; finds a suitable python interpreter and execs this file. # prefer unqualified "python" if suitable: python -c 'import sys; sys.exit(not (0x020500b0 < sys.hexversion /dev/null && exec python "$0" "$@" for pyver in 2.6 2.7 2.5; do which python$pyver > /dev/null 2>&1 && exec python$pyver "$0" "$@" done echo "No appropriate python interpreter found." >&2 exit 1 ":""" print 'Hello from python code'