FASTQ Format

Read FASTQ reads as one record per four-line block (stdlib; no extra).

Overview

Property	Value
Format id	fq (alias fastq)
Class	FASTQIterable
Extensions	.fq, .fastq
Read	Yes
Write	No
Extra	none (stdlib)
Maturity	stable

Record shape

{
    "id": "read1",
    "description": "",
    "sequence": "ACGTACGT",
    "quality": "IIIIIIII",
}

Usage

from iterable import open_iterable

with open_iterable("reads.fq") as source:
    for rec in source:
        print(rec["id"], rec["sequence"], rec["quality"])

See also

• FASTA — sequences without qualities
• Supported formats