#sorry for my rushed reply.
#above the for Venue in venues:
rowo = 0
for Venue in Venues:
#add row=rowo to your .grid( lines
#then at the bottom of that loop under
Wcondition_label.grid( column=4,sticky=W,row=rowo)
rowo += 1
#that will increment the row number
#you need row=rowo or whatever you choose to call it alongside the column=n