Reads real formats
FASTA, GenBank, PDB, and alignment formats become Python objects.
Open source · Bioinformatics
Biopython
Biopython turns sequence files, database records, and structure files into ordinary Python objects you can inspect, slice, and analyse.
- GitHub stars
- 5.2K
- Language
- Python
- License
- Biopython License
- Runs on
- Python 3 · NumPy
01
/ 03What it is
A parser and toolkit for biological data.
Biopython turns sequence files, database records, and structure files into ordinary Python objects you can inspect, slice, and analyse.
Connects to NCBI
Entrez helpers fetch sequence and literature records with retry handling.
Analysis included
Translation, statistics, structure handling, and tree building are included.
02
/ 03Capabilities
Ready-made biology primitives.
Use consistent APIs across common biological data.
Sequence parsing
Read and write FASTA, GenBank, and alignment formats.
Entrez access
Query NCBI databases and retrieve records programmatically.
Structure handling
Parse PDB files and work with protein structures as objects.
03
/ 03How to use
Install, then load a file.
Install the package and begin with a sequence file.
01
Install Biopython
One pip install, with no system packages required.
terminal
pip install biopython02
Load a sequence
Point the parser at a file and inspect each record.
load.py
from Bio import SeqIO
for record in SeqIO.parse("sequences.fasta", "fasta"):
print(record.id, len(record.seq))Keep exploring
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