May I drop list bracket from list?

Peter Otten __peter__ at web.de
Thu Apr 23 13:52:19 CEST 2015


Jean-Michel Pichavant wrote:

> ----- Original Message -----
>> From: "Peter Otten" <__peter__ at web.de>
>> To: python-list at python.org
>> Sent: Thursday, 23 April, 2015 12:26:41 PM
>> Subject: Re: May I drop list bracket from list?
>> 
>> subhabrata.banerji at gmail.com wrote:
>> 
>> > Dear Group,
>> > 
>> > list1=[]
>> > for file in list_of_files:
>> >       print file
>> >       fread1=open(file,"r").read()
>> >       fword=fread1.split()
>> >       list1.append(fword)
>> > 
>> > Here the list is a list of lists, but I want only one list not
>> > list of lists.
>> There is also a dedicated extend() method that takes a list (actually
>> an
>> iterable) and appends all items in that list:
>> 
>> list1.extend(fword)
> 
> If both list1 and fword are lists, you can also write
> 
> list1 = list1 + fword
> or
> list1 += fword

Yes, the can of worms is bottomless ;)




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