shrc: add alias ipy

shrc

@@ -334,6 +334,7 @@ __safe_alias pc="sudo \paco -D"
 alias pycalc="python -i -c 'from math import *' "
 __safe_alias py3=python3
 __safe_alias py2=python2
+__safe_alias ipy=ipython
 __safe_alias ipy3=ipython3
 __safe_alias ipy2=ipython2
 # Sometimes SHELL cannot be used. For example, when running bash inside zsh