Python two lists added

Question

There is a set of lists, a, b, c,..., and I want to continuously add this set of lists to the same list, for example:

`a = ['a']
b = ['b']
c = ['c']
addall = [['a'], ['b'], ['c']]`

I only thought of using a for loop to do this. Is there any more pythonic method?

Answer 1

There is no need to pay too much attention to the form, just be concise and easy to understand

a = ['a']
b = ['b']
c = ['c']
tt=[]
tt.append(a)
tt.append(b)
tt.append(c)
print tt
#输出[['a'], ['b'], ['c']]

Answer 2

In [1]: a = ['a', 'b', 'c']                 
                                            
In [2]: b = ['d', 'e', 'f']                 
                                            
In [3]: import itertools                    
                                            
In [4]: itertools.chain(a, b)               
Out[4]: <itertools.chain at 0x30fcd90>      
                                            
In [5]: list(itertools.chain(a, b))         
Out[5]: ['a', 'b', 'c', 'd', 'e', 'f']      
                                            

Answer 3

python2,3

In [6]: a=['a']

In [7]: b=['b']

In [8]: a.extend(b)

In [9]: a
Out[9]: ['a', 'b']

python2,3, I think this is more natural!

In [1]: a=['a']

In [2]: b=['b']

In [3]: a+b
Out[3]: ['a', 'b']

python3

In [1]: a=['a']

In [2]: b=['b']

In [3]: [*a,*b]
Out[3]: ['a', 'b']

Answer 4

d = [i for i in (a,b,c)]