It was alway a pain for me to work with the embl format. Unfortunately for using Artemis and ACT I need embl files again. Tried to install EMBLmyGFF3 with biopython > 1.67 on my laptop.
The 8th column of a gff file is critical for extracting protein sequences.
Use Python (BioPython and gffutils) to extract sequences for gene features.
In practice this is used to replace all IDs in a GFF file with your desired IDs, e.g. g10 to Smp_300010 but also g10.t1 to Smp_300010.1 (without 't').
Record of basic commands for sqlite3, as well as database operations in Python.