日期格式化为月份大写

Question

我设法在

之前得到了约会对象

import datetime
getDate = datetime.date.today()
print(getDate.strftime("%Y-%B-%d"))

输出为 2018-June-23

但我想像这样格式化输出：2018-JUNE-23（月份是大写的）

Answer 1

只需使用.upper():

print(getDate.strftime("%Y-%B-%d").upper())

Answer 2

要直接在格式字符串中执行此操作，请在月份 (^) 前加上 carrot:

>>> getDate = datetime.date.today()
>>> print(getDate.strftime("%Y-%^B-%d"))
2018-JUNE-22

注意：如果您的平台上有可用的 glibc 扩展（或等效功能）strftime，则此方法有效。您可以通过调用 man strftime. If it's not working on your platform, or you need to guarantee the behaviour cross-platform, then prefer to just make an extra function call here by using str.upper as .

来检查

Answer 3

要添加的答案，为了使其跨平台，额外的包装器是在所有平台上执行此操作的最准确方法。

Python 3+ 的包装示例将使用格式字符串：

import datetime

class dWrapper:
    def __init__(self, date):
        self.date = date

    def __format__(self, spec):
        caps = False
        if '^' in spec:
            caps = True
            spec = spec.replace('^', '')
        out = self.date.strftime(spec)
        if caps:
            out = out.upper()
        return out

    def __getattr__(self, key):
        return getattr(self.date, key)

def parse(s, d):
    return s.format(dWrapper(d))

d = datetime.datetime.now()
print(parse("To Upper doesn't work always {0:%d} of {0:%^B}, year {0:%Y}", d))

日期格式化为月份大写

Date formatting to month uppercase

python

strftime

python-3.x