优雅的打印方式中间对齐的标题==="；用python

正如我所知，有一些优雅的方式打印左对齐和右对齐字符串填充。 像这样

str = "left_justified"
str.ljust(20, '0');

或

---

用填充打印中间对齐字符串的最佳方法是什么？您错过了

^

：

s = 'centered'
print "{0:{1}^20}".format(s, "=")
# -> ======centered======

我还冒昧地将

str

变量重命名为不影响内置

str

的变量

>>> "hello".center(50, '=')
'======================hello======================='

s = 'centered'
print "{0:{1}^20}".format(s, "=")
# -> ======centered======

>>> "hello".center(50, '=')
'======================hello======================='

>>> termwidth, fillchar = 78, '='
>>> print ' middle justified title '.center(termwidth, fillchar)
=========================== middle justified title ===========================