Function that takes a list of shapefiles and adds them to a File Geodatabase

shps_to_fgdb.py

import arcpy

def shp_to_fgdb(shps, out_fgdb):
    if isinstance(shps, str):
        shps = [shps]
    
    for shp in shps:
        out_fc_name = shp.split('\\')[-1].split('.')[0]
        print('Working on {}...'.format(out_fc_name))
        arcpy.FeatureClassToFeatureClass_conversion(shp, out_fgdb, out_fc_name)