ValueError：时间数据“ ['140209/1729']”与格式'％y％m％d /％H％M'不匹配

问题描述

这应该是一个非常简单的解决方案。

This should be a very simple solution.

我正在从列数组中读取日期，并且由于格式不匹配而出现错误：

I'm reading dates from a columnar array and getting an error due to a mismatch in format:

    ValueError: time data "['140209/1729']" does not match format '%y%m%d/%H%M'

我尝试在循环遍历值时抛出[]，但它不喜欢这种格式。

I've tried throwing in [] while looping through the values, but it does not like the format.

    xdates = [datetime.datetime.strptime(str(formdate),'%y%m%d/%H%M') for formdate in DATE]

是否有更好的方法来定义日期np.genfromtxt？

Would there be a better way to define these at dates when doing a np.genfromtxt?

推荐答案

正如Ashwini Chaudhary所说，请使用 formdata [0] 而不是 str（formdata）：

As Ashwini Chaudhary commented, use formdata[0] instead of str(formdata):

>>> import datetime
>>> formdate = ['140209/1729']

>>> datetime.datetime.strptime(str(formdate), '%y%m%d/%H%M')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python27\lib\_strptime.py", line 325, in _strptime
    (data_string, format))
ValueError: time data "['140209/1729']" does not match format '%y%m%d/%H%M'

>>> datetime.datetime.strptime(formdate[0], '%y%m%d/%H%M')
datetime.datetime(2014, 2, 9, 17, 29)

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