import subprocess as sub class SystemRepository(): def __init__(self): self.stdout = [""] self.stderr = [""] def run(self, args): stream = sub.Popen(args, stdout=sub.PIPE, stderr=sub.PIPE, text=True, encoding="UTF-8") self.stdout = stream.stdout.readlines() self.stderr = stream.stderr.readlines() def run_checked(self, *args): self.run(args) if len(self.stderr) > 0: raise Exception(f"Command failed with: {self.stderr}")