How to loop and index through file content in python and assign each line for different variable

If I have a file.txt And the content looks like this:

   
BEGAN_SIT
s_alis='HTTP_WSD'
xps_entity='HTTP_S_ER'
xlogin_mod='http'
xdest_addr='sft.ftr.net'
xmax_num='99'
xps_pass='pass'
xparam_nm='htp'
#?SITE END

How i I can loop through it and assign each line for different variable