title: Python Iterating through list of lists
body: <p>i have list of lists, i need via Python iterate through each string ,remove spaces (strip) and save list into new list.</p>
  
  <p>E.g. original list:
  org = [ [' a ','b '],['c ',' d '],['e ',' f'] ]</p>
  
  <p>Expecting new list:
  new = [ ['a','b'],['c','d'],['e','f'] ]</p>
  
  <p>I started with below code, but no idea how to add stripped objects into new list of lists. new.append(item) - create simple list without inner list.</p>
  
  <p><code>
  new = []
  for items in org:
    for item in items:
      item= item.strip()
      new.append(item)</code></p>