avoid dropping the wrapped scripts stdin #119
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This way `rosrun <pkg> <script>` is still able to read user input from the command line (usually for prompts).
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I just wrote a short CLI prompt script that exited directly when wrapped through
catkin_virtualenv. It turns out the script accidentally overwrote STDIN.Instead I moved the internal code passing to fd=3 instead.
This way
rosrun <pkg> <script>is still able to read user input from the command line (usually for prompts).