Python 巨蟒;类型错误:';str';对象不可调用";,生成日期格式时(从日期时间)
我不明白为什么我得到了Python 巨蟒;类型错误:';str';对象不可调用";,生成日期格式时(从日期时间),python,function,datetime,typeerror,Python,Function,Datetime,Typeerror,我不明白为什么我得到了TypeError:“str”对象不能在我构建的函数上调用。请帮忙?下面的解释 我有一个元组列表: date_list = [ (0, ' Thursday - 18 February 2021'), (40, ' Friday - 19 February 2021'), (68, ' Saturday - 20 February 2021'), (129, ' Sunday - 21 February 2021'), (190, ' Monday -
TypeError:“str”对象不能在我构建的函数上调用。请帮忙?下面的解释
我有一个元组列表:
date_list = [
(0, ' Thursday - 18 February 2021'),
(40, ' Friday - 19 February 2021'),
(68, ' Saturday - 20 February 2021'),
(129, ' Sunday - 21 February 2021'),
(190, ' Monday - 22 February 2021'),
(260, ' Tuesday - 23 February 2021'),
(300, ' Wednesday - 24 February 2021'),
(337, ' Thursday - 25 February 2021'),
(377, ' Friday - 26 February 2021'),
(402, ' Saturday - 27 February 2021'),
(463, ' Sunday - 28 February 2021'),
(524, ' Monday - 01 March 2021'),
(591, ' Tuesday - 02 March 2021'),
(631, ' Wednesday - 03 March 2021'),
(668, ' Thursday - 04 March 2021')
]
忽略每个元组索引0处的数字,因为它们不是问题的一部分(出于好奇,它们表示元组索引1处元素的列表索引号,从另一个列表中选取)
现在,我有以下功能:
def date_update(date_list):
print("\ndate_update():")
updated_dates = []
# months dictionary, to swap word for number
months = {"January": 1, "February": 2, "March": 3, "April": 4, "May": 5, "June": 6, "July": 7, "August": 8, "September": 9, "October": 10, "November": 11, "December": 12}
# pattern for regex on day and year
day_pattern = re.compile(r'(\d{2})')
year_pattern = re.compile(r'(\d{4})')
# extract day and year
for true_index, date in date_list:
day_extracts = int(re.search(day_pattern, date).group())
year_extracts = int(re.search(year_pattern, date).group())
# identify month
for month in months:
if month in date:
month_extracts = int(months[month])
else:
pass
date_format = date(year_extracts, month_extracts, day_extracts)
return date_format
有人能看出哪里出了问题吗?如果您使用适当的格式在datetime.strtime中输入,您可以通过删除regex和dict操作来简化代码
from datetime import strptime
for idx, str_date in date_list:
print(datetime.strptime(str_date.strip(), "%A - %d %B %Y"))
2021-02-18 00:00:00
2021-02-19 00:00:00
2021-02-20 00:00:00
2021-02-21 00:00:00
2021-02-22 00:00:00
2021-02-23 00:00:00
2021-02-24 00:00:00
2021-02-25 00:00:00
2021-02-26 00:00:00
2021-02-27 00:00:00
2021-02-28 00:00:00
2021-03-01 00:00:00
2021-03-02 00:00:00
2021-03-03 00:00:00
2021-03-04 00:00:00
不打印日期,您只需将其存储在列表中,并在需要时在代码中使用它。您的循环是对于true\u索引,date\u列表中的日期:
接下来的几行您将编写date\u format=date(year\u extracts,month\u extracts,day\u extracts)
。date显然是一个字符串,你怎么称呼它?可能您想在这里使用datetime.date
,请尝试为变量使用其他名称,或者使用import datetime
和datetime.date(…)
而不是from datetime import date
该死,没错!!!thanksdateutil的解析器可以增加更多的便利性(如果效率不是问题的话)