title: Why do up and down arrow commands not work in the Python command line interpreter?
body: <p>I am using a VT100 terminal emulator on Linux. In bash, up and down arrows scroll through the last commands executed; they work as expected.</p>
  
  <p>Previous (up arrow) and next (down arrow) commands are not interpreted in the Python command line interpreter. What kind of key mappings do I need to make this work?</p>
  
  <p>Thank you.</p>