I start programming with python on a Windows host. While simple examples work for unix like system I have to handle some Windows specifics like the line ending.
The following python script fails with an
TypeError: a bytes-like object is required, not 'str'
for the last line of the function run in this example:
import sys
import subprocess
def run(cmd):
p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdoutdata, stderrdata = p.communicate()
if stderrdata:
sys.stderr.write('\n')
sys.stderr.write(stderrdata)
return [real_line for real_line in stdoutdata.split('\n') if real_line]
def main():
run("dir c:\\");
sys.exit(0)
if __name__ == "__main__":
main()
I guess that this is related to the fact that the stdoutdata contain line endings with \r\n. But replacing the split parameter with '\r\n' doesn't help.
How can I modify the script to run on a Windows host without changing the tools to start the external program?
