Solving 'The Python Challenge' with RubyLevel 2 - ocr

URL for level 2 is here.

From the page, it tells us that we should inspect the page source. In the page source, there are comments:

<!-- 
find rare characters in the mess below: 
-->

<!-- 
%%$@_$^__#)^)&!_+]!*@&^}@[@%]()%+$&[(_@%+%$*^@$^!+]!&_#)_*}{}}!}_]$[%}@[{_@#_^{*
@##&{#&{&)*%(]{{([*}@[@&]+!!*{)!}{%+{))])[!^})+)$]#{*+^((@^@}$[**$&^{$!@#$%)!@(&
+^!{%_$&@^!}$_${)$_#)!({@!)(^}!*^&!$%_&&}&_#&@{)]{+)%*{&*%*&@%$+]!*__(#!*){%&@++
!_)^$&&%#+)}!@!)&^}**#!_$([$!$}#*^}$+&#[{*{}{((#$]{[$[$$()_#}!@}^@_&%^*!){*^^_$^
]@}#%[%!^[^_})+@&}{@*!(@$%$^)}[_!}(*}#}#___}!](@_{{(*#%!%%+*)^+#%}$+_]#}%!**#!^_
)@)$%%^{_%!@(&{!}$_$[)*!^&{}*#{!)@})!*{^&[&$#@)*@#@_@^_#*!@_#})+[^&!@*}^){%%{&#@
@{%(&{+(#^{@{)%_$[+}]$]^{^#(*}%)@$@}(#{_&]#%#]{_*({(])$%[!}#@@&_)([*]}$}&${^}@(%
(%[@%!}%*$}(*@)}){+@(%@*$&]*^*}*]&$[}*]%]+*}^!}*$^^_()#$^]++@__){&&+((#%+(&+){)$
%&&#($[[+##*%${)_!+{_[})%++)$#))]]]$]@]@($+{&%&%+!!!@]_]+])^*@$(@#${}}#}{%}#+{(@
#__+{{]${]!{(%${%%^)(_*_@+)$]$#_@$)]](}{}$(}*%+!}#+)$%$}+#@*&^{##}+@(%[*@_}{(^]^
+_*{@+[$!!@%$+{_&(#^(([&[][[&@#+}_]&&]}^*&$&)#_^$@$((%)}+{}$#+{+^}&[#[#_+${#[#]{
... ### the block is too big, so skip the rest
-->

So I think I need to find the 'rare characters' from the block:

Assume the block is assigned to variable s, then

puts s.gsub(/[^a-zA-Z]/, '')

will give 'equality'.

Then the URL for the next level is here.