Version Compatibility

Reference examples tested with: BioPython 1.83+, samtools 1.19+

Before using code patterns, verify installed versions match. If versions differ:

• Python: pip show <package> then help(module.function) to check signatures

If code throws ImportError, AttributeError, or TypeError, introspect the installed package and adapt the example to match the actual API rather than retrying.

Filter Sequences

"Filter sequences by length, quality, or content" → Apply boolean criteria to a stream of sequence records and write survivors to output.

• Python: generator expression with SeqIO.parse() + SeqIO.write() (BioPython)
• CLI: seqkit seq -m 200 (SeqKit) or awk on FASTA

Filter and select sequences based on various criteria using Biopython.

Required Imports