Small program to automate workflow

cssinliner.py

#pip install premailer
import sys
from premailer import transform


if len(sys.argv) < 2:
    print("Falta o agumento 1. Arquivo HTML de entrada.")
    sys.exit(1)

file_in_name = str(sys.argv[1])
file_extension = file_in_name.rsplit( ".", 1 )

if len(file_extension) < 2 or file_extension[1] != "html":
    print("O primeiro argumento precisa ser um aquivo .html. Exemplo: python cssinliner Relatorio.html")
    sys.exit(1)

file_in = open(file_in_name, "r") 
file_iniline = transform(file_in.read(), allow_network=False)
#print(file_iniline)

file_out_name = file_in_name.rsplit( ".", 1 )[0] + "_CSS_INLINE.html"
file = open(file_out_name, "w")
file.write(file_iniline) 
file.close()
print("Convertido e salvo. Arquivo de saída: ", file_out_name)