Gene ID Mapping

Python: mygene

import mygene
import pandas as pd

mg = mygene.MyGeneInfo()

# Ensembl to Symbol
ensembl_ids = ['ENSG00000141510', 'ENSG00000012048', 'ENSG00000141736']
results = mg.querymany(ensembl_ids, scopes='ensembl.gene', fields='symbol', species='human')
mapping = {r['query']: r.get('symbol', None) for r in results}
# {'ENSG00000141510': 'TP53', 'ENSG00000012048': 'BRCA1', 'ENSG00000141736': 'ERBB2'}