Generally use one of the :map command to bind a key to a command.
:map Q :ConqueTerm python -i %^V^M
You can use anything in place of Q, which is similar to the : command. From the VIM help text:
{lhs} means left-hand-side *{lhs}*
{rhs} means right-hand-side *{rhs}*
:map {lhs} {rhs} |mapmode-nvo| *:map*
:nm[ap] {lhs} {rhs} |mapmode-n| *:nm* *:nmap*
:vm[ap] {lhs} {rhs} |mapmode-v| *:vm* *:vmap*
:xm[ap] {lhs} {rhs} |mapmode-x| *:xm* *:xmap*
:smap {lhs} {rhs} |mapmode-s| *:smap*
:om[ap] {lhs} {rhs} |mapmode-o| *:om* *:omap*
:map! {lhs} {rhs} |mapmode-ic| *:map!*
:im[ap] {lhs} {rhs} |mapmode-i| *:im* *:imap*
:lm[ap] {lhs} {rhs} |mapmode-l| *:lm* *:lmap*
:cm[ap] {lhs} {rhs} |mapmode-c| *:cm* *:cmap*
Map the key sequence {lhs} to {rhs} for the modes
where the map command applies. The result, including
{rhs}, is then further scanned for mappings. This
allows for nested and recursive use of mappings.