delete column content

[jessica]

On 11月30日, 上午2时12分, Francesco Pietra
<francesco.pie... at accademialucchese.it> wrote:
> Hi:
> How to replace with blank the single-character in column 21 of a pdb
> file (in pdb numbering it is column 22). Attached is an incomplete
> exercise with slices. I am unable to get real plain text with gmail.
>
> Thanks for help
>
> francesco pietra
>
>  delete.label.py
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