On Tuesday, June 4, 2013 11:21:53 AM UTC-4, mstagliamonte wrote:
> Hi everyone,
>
>
>
> I am a beginner in python and trying to find my way through... :)
>
>
>
> I am writing a script to get numbers from the headers of a text file.
>
>
>
> If the header is something like:
>
> h01 = ('>scaffold_1')
>
> I just use:
>
> h01.lstrip('>scaffold_')
>
> and this returns me '1'
>
>
>
> But, if the header is:
>
> h02: ('>contig-100_0')
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> if I use:
>
> h02.lstrip('>contig-100_')
>
> this returns me with: ''
>
> ...basically nothing. What surprises me is that if I do in this other way:
>
> h02b = h02.lstrip('>contig-100')
>
> I get h02b = ('_1')
>
> and subsequently:
>
> h02b.lstrip('_')
>
> returns me with: '1' which is what I wanted!
>
>
>
> Why is this happening? What am I missing?
>
>
>
> Thanks for your help and attention
>
> Max
edit: h02= ('>contig-100_1')
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