Question

我正在尝试阅读CSV的类型文件。它总结了一个日期线。像其他人一样教我这样编写代码，但这是错误的。我不知道为什么。请帮帮我。

from matplotlib.dates import strpdate2num
import matplotlib.pyplot as plt
import pandas as pd
import numpy as np
import os
dates=np.loadtxt('data.csv',delimiter=',',usecols=(1,),
                 converters={ 1:strpdate2num('%d-%m-%Y')})

和错误信息如下：

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-24-e58dd0485173> in <module>()
      1 dates=np.loadtxt('data.csv',delimiter=',',usecols=(1,),
----> 2                  converters={ 1:strpdate2num('%d-%m-%Y')})

C:\Anaconda3\lib\site-packages\numpy\lib\npyio.py in loadtxt(fname, dtype, comments, delimiter, converters, skiprows, usecols, unpack, ndmin)
    928 
    929             # Convert each value according to its column and store
--> 930             items = [conv(val) for (conv, val) in zip(converters, vals)]
    931             # Then pack it according to the dtype's nesting
    932             items = pack_items(items, packing)

C:\Anaconda3\lib\site-packages\numpy\lib\npyio.py in <listcomp>(.0)
    928 
    929             # Convert each value according to its column and store
--> 930             items = [conv(val) for (conv, val) in zip(converters, vals)]
    931             # Then pack it according to the dtype's nesting
    932             items = pack_items(items, packing)

C:\Anaconda3\lib\site-packages\matplotlib\dates.py in __call__(self, s)
    285            return value: a date2num float
    286         """
--> 287         return date2num(datetime.datetime(*time.strptime(s, self.fmt)[:6]))
    288 
    289 

C:\Anaconda3\lib\_strptime.py in _strptime_time(data_string, format)
    557     """Return a time struct based on the input string and the
    558     format string."""
--> 559     tt = _strptime(data_string, format)[0]
    560     return time.struct_time(tt[:time._STRUCT_TM_ITEMS])
    561 

C:\Anaconda3\lib\_strptime.py in _strptime(data_string, format)
    327         if not isinstance(arg, str):
    328             msg = "strptime() argument {} must be str, not {}"
--> 329             raise TypeError(msg.format(index, type(arg)))
    330 
    331     global _TimeRE_cache, _regex_cache

TypeError: strptime() argument 0 must be str, not <class 'bytes'>

Answer 1

试试这个：

var slug = $("input[name='slug']:checked").val();

$(document).on('change', 'input', function() {
  if (slug == "the_lone_snitch") {
    $(".button").addClass("disabled")
  }
  else{
    //This will enable to button when radio button is not equal to "the_lone_snitch"
    $(".button").removeClass("disabled")
  }
});

numpy.loadtxt，转换器错误

1 个答案: