[issue19430] argparse replaces \$ with $ (if in commandline)
telmich
report at bugs.python.org
Tue Oct 29 10:45:56 CET 2013
telmich added the comment:
Background information:
cdist is written in python 3 and makes heavy use of argparse.
One common task is to run a cdist type with some arguments, which
in the end configure a remote system.
We triggered the bug by running
__line ps1 --file /etc/bash.bashrc --line "PS1='[\t] \[\033[1m\]\h\[\033[0m\]:\w\$ '"
which should have ensured that the line is found in /etc/bash.bashrc.
But in reality we found
PS1='[\t] \[\033[1m\]\h\[\033[0m\]:\w$ '
instead of
PS1='[\t] \[\033[1m\]\h\[\033[0m\]:\w\$ '
This is a rather nasty bug, as you would not suspect argparse doing that and dig through all your code looking for errors.
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<http://bugs.python.org/issue19430>
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