python去除日期间的横杠

Question

想把日期中的横杠去掉：
mport datetime
def format_timea(datetime_str):
d = datetime.datetime.strptime(datetime_str, '%Y%m%d')
return d.date()

china["Date"] = china["Date"].apply(format_timea)

但是出现如下报错：
ValueError: time data '2020-01-22' does not match format '%Y%m%d'

Answer 1

参考：https://www.py.cn/faq/python/18224.html

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