Why Python cuts ‘^’ character and how to avoid it?
Python does not cut ^
character. Popen()
passes the string (resize_command
) to CreateProcess()
Windows API call as is.
It is easy to test:
#!/usr/bin/env python
import sys
import subprocess
subprocess.check_call([sys.executable, '-c', 'import sys; print(sys.argv)'] +
['^', '<-- see, it is still here'])
The latter command uses subprocess.list2cmdline()
that follows Parsing C Command-Line Arguments rules to convert the list into the command string — it has not effect on ^
.
^
is not special for CreateProcess()
. ^
is special if you use shell=True
(when cmd.exe
is run).
if and only if the command line produced will be interpreted by cmd, prefix each shell metacharacter (or each character) with a ^
character. It includes ^
itself.