在python的三引号内替换字符串中的字符

我有以下代码:

Integration_Minute = 00
Integration_Schedule = '''{"cluster":{"scheduling":{"shutdownHours":{"isEnabled":true,"timeWindows":["Sat:00:00-Mon:04:xx","Tue:00:00-Tue:04:xx","Wed:00:00-Wed:04:xx","Thu:00:00-Thu:04:xx","Fri:00:00-Fri:04:xx"]}}}}'''
print(Integration_Schedule.replace("xx", Integration_Minute)) 

我想用00来代替xx，但是不行。在python中最好的方法是什么? 我得到的错误是:

  File "s.py", line 4, in <module>
    print(Integration_Schedule.replace("xx", Integration_Minute))
TypeError: expected a character buffer object

问题来源StackOverflow 地址：/questions/59385220/replace-a-char-in-string-within-triple-ticks-in-python