如何将打印语句放入mrjob代码中以进行调试？

from mrjob.job import MRJob

class MyMRJob(MRJob):
    def mapper(self, _, line):
        # 打印输入的每一行数据
        print("Input line:", line)
        
        # 其他的mapper逻辑代码
        
    def reducer(self, key, values):
        # 打印reducer的输入key和values
        print("Reducer input:", key, list(values))
        
        # 其他的reducer逻辑代码

if __name__ == '__main__':
    MyMRJob.run()