Python - 将月份名称转换为整数
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Python - Convert Month Name to Integer
提问by huhh hhbhb
How can I convert 'Jan' to an integer using Datetime? When I try strptime, I get an error time data 'Jan' does not match format '%m'
如何使用 Datetime 将“Jan”转换为整数？当我尝试 strptime 时，出现错误time data 'Jan' does not match format '%m'
采纳答案by Martijn Pieters
You have an abbreviated month name, so use %b:
您有一个缩写的月份名称，因此请使用%b：
>>> from datetime import datetime
>>> datetime.strptime('Jan', '%b')
datetime.datetime(1900, 1, 1, 0, 0)
>>> datetime.strptime('Aug', '%b')
datetime.datetime(1900, 8, 1, 0, 0)
>>> datetime.strptime('Jan 15 2015', '%b %d %Y')
datetime.datetime(2015, 1, 15, 0, 0)
%mis for a numericmonth.
%m是数字月份。
However, if all you wanted to do was map an abbreviated month to a number, just use a dictionary. You can build one from calendar.month_abbr:
但是，如果您只想将缩写的月份映射到数字，只需使用字典即可。您可以从calendar.month_abbr以下位置构建一个：
import calendar
abbr_to_num = {name: num for num, name in enumerate(calendar.month_abbr) if num}
Demo:
演示：
>>> import calendar
>>> abbr_to_num = {name: num for num, name in enumerate(calendar.month_abbr) if num}
>>> abbr_to_num['Jan']
1
>>> abbr_to_num['Aug']
8
回答by AndrewSmiley
Off the cuff-
Did you try %b?
袖手旁观 - 你试过%b吗？
回答by BlivetWidget
This is straightforward enough that you could consider just using a dictionary, then you have fewer dependencies anyway.
这很简单，您可以考虑只使用字典，然后您的依赖项就更少了。
months = dict(Jan=1, Feb=2, Mar=3, ...)
print(months['Jan'])
>>> 1
回答by Kernel
from calendar import month_abbr
month = "Jun"
for k, v in enumerate(month_abbr):
if v == month:
month = k
break
print(month)
6
You will get the number of month 6
您将获得第 6 个月的数字
