[Biopython-dev] [Biopython - Bug #3368] Bio.GenBank format writer creates invalid start_codon entries.

[redmine at redmine.open-bio.org]

Issue #3368 has been updated by Peter Cock.


We changed to RedMine from Bugzilla relatively recently - still learning its quirks ;)

And yes, regarding the string/integer typo.
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Bug #3368: Bio.GenBank format writer creates invalid start_codon entries.
https://redmine.open-bio.org/issues/3368

Author: Kai Blin
Status: Closed
Priority: Normal
Assignee: Biopython Dev Mailing List
Category: Main Distribution
Target version: 
URL: ftp://ftp.ncbi.nih.gov/genbank/release.notes/gb185.release.notes


When writing genbank output, the module adds quotes around the codon_start qualifier. This isn't according to the genbank file spec (see URL), and it also breaks the parser of another program I need to use.

<pre>
BioPython generates:
                     /codon_start="1"
while it should generate:
                     /codon_start=1
</pre>

Looking over the Bio.GenBank code, it seems like I need to introduce some special handling for un-quoted qualifiers. I'd suggest using the same list as BioPerl:

<pre>

our %FTQUAL_NO_QUOTE = map {$_ => 1} qw(
    anticodon           citation
    codon               codon_start
    cons_splice         direction
    evidence            label
    mod_base            number
    rpt_type            rpt_unit
    transl_except       transl_table
    usedin
    );
</pre> (see https://github.com/bioperl/bioperl-live/blob/master/Bio/SeqIO/genbank.pm#L193)

I'll try to come up with a patch and will be happy for feedback on implementation, coding conventions and the like.


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