This is to record some functions and attributes of Python I used before.

the length of list：len(list)
the type of list：type(…)

How to get the index of 'bar'?

["foo", "bar", "baz"].index("bar”)

How to find all indices of a repeated elements?

(找出多个元素所有的index位置)
[i for i, v in enumerate(resIndexList) if v==index]

Iteration

for i in range (0,len(list)): 
    print i ,list[i]

# enumerate, get index and text info at the same time
for index，text in enumerate(list)): 
   print index ,text

Remove repeated elements

set(list)
list intersection, union, subset
http://www.yihaomen.com/article/python/323.htm