ensure ANSI escape sequences print correctly in cmd and powershell #33656
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PR types
Bug fixes
PR changes
APIs
Describe
os.system('')
版本参考how-to-print-colored-text-to-the-terminal。
\033[
开头为ANSI转义代码(ANSI escape sequences
),在windows cmd和powershell上直接print('\033[93m\nWarning:\n%s \033[0m' % ('Test'))
会乱码,通过以下代码可解决该问题:subprocess.call('', shell=True)
版本os.system('')
版本下PR-CI-Window一直挂,原因是Timeout。查找时发现可能是因为windows下在python中调用os.system()执行系统命令时的弹出框,为解决该问题同时兼容python2和python3,使用subprocess.call
替换os.system('')
。win32下不显示颜色
subprocess.call
版本在PR-CI-CPU-Py2下也直接挂,原因是subprocess.call
调用将被废弃,但最新的subprocess.run
只支持python3.5+版本,因此权衡之下干脆对于cmd和powershell不显示颜色。