<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def install(self):
        '''
        Use pip to install the requirements file.
        '''
        remote_path = os.path.join(self.venv, 'requirements.txt')
        put(self.requirements, remote_path)
        run('{pip} install -r {requirements}'.format(
            pip=self.pip(), requirements=remote_path))