Select random items from list of lists in Python -


i have list of lists of different lengths. each list of lists, need randomly select 10 items. have combine results in single list each list item separated comma. (pls see output below). not sure whether possible in python. appreciated.

[[-26.0490761  27.79991  ]  [-25.9444218  27.9116535]  [-26.1055737  27.7756424]  ...,   [-26.036684   28.0508919]  [-26.1367035  28.2753029]  [-26.0668163  28.1137161]]  [[ 45.35693   -63.1701241]  [ 44.6566162 -63.5969276]  [ 44.7197456 -63.48137  ]   ...,   [ 44.624588  -63.6244736]  [ 44.6563835 -63.679512 ]  [ 44.66706   -63.621582 ]] 

i output in format suitable plotting them on map using folium.

 [[-26.0490761  27.79991],   [-25.9444218  27.9116535],   [ 44.6563835 -63.679512 ],   [ 44.66706   -63.621582 ]] 

i tried code not sure went wrong:

  cluster in clusters:     in range(2):        modifiedlist.append(cluster) 

something easy using module random:

import random  def samplefromlists(lists,n):     """draws n elements each list in lists returning result single list"""     sample = []     sublist in lists:         sample.extend(random.sample(sublist,n))     return sample 

sample data (a list of lists of 2-element lists):

data = [     [[-26.0490761, 27.79991],      [-25.9444218, 27.9116535],      [-26.1055737, 27.7756424],      [-26.036684, 28.0508919],      [-26.1367035, 28.2753029],      [-26.0668163,28.1137161]],      [[ 45.35693, -63.1701241],      [44.6566162 -63.5969276],      [44.7197456, -63.48137],      [44.624588, -63.6244736],      [44.6563835,-63.679512],      [44.66706, -63.621582]] ] 

and then:

>>> samplefromlists(data,2) [[-26.036684, 28.0508919], [-26.0490761, 27.79991], [44.7197456, -63.48137], [44.6563835, -63.679512]] 

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