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Is there a way to set several list elements a same value with one line code

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Subject Is there a way to set several list elements a same value with one line code
From Robert <rxjwg98@gmail.com>
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Hi,

I remember that there is a way to set several list elements a same value with
 one line code. Excuse me, I don't remember the accurate syntax on the code
 snippet. But the basic format looks like this.

1. There is a four-element list, such as: 
   bb=[[[]],[[]],[[]],[[]]]
2. An assignment line is here:
   bb[0]='a'
3. Then, all 4 element of bb is set with the above value.
   bb=[['a'],['a'],['a'],['a']]

The above three line codes are what I guess (I forgot the original tutorial
 now). Do you remember there is such a list application?


Thanks,

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Is there a way to set several list elements a same value with one line code Robert <rxjwg98@gmail.com> - 2015-12-03 16:30 -0800
  Re: Is there a way to set several list elements a same value with one line code MRAB <python@mrabarnett.plus.com> - 2015-12-04 00:58 +0000
    Re: Is there a way to set several list elements a same value with one line code Robert <rxjwg98@gmail.com> - 2015-12-03 18:11 -0800
  Re: Is there a way to set several list elements a same value with one line code Denis McMahon <denismfmcmahon@gmail.com> - 2015-12-04 04:19 +0000

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