python - Make a loop go back to the begining of a list -

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i’m making cross reference program in python. have list of 600 data points, , of 148 data points. want cross reference 2 find similar points within specific range. know have loop through 1 list, find range met, loop stop when finished list. how make go top of list once has reached end?

for idx in hectora:     matches = np.where(abs(hectora[idx] - ra) < .01)  print idx

hectora list 600 points; ra list 148 points. want able loop through either one.

using for statement on list start beginning of list each time start loop.

hence, every

for item in mylist:     # item.

will loop on mylist beginning.


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