【发布时间】：2019-12-15 13:28:15
【问题描述】：
我已经解析了许多日期时间并将它们转换为不同的时区。但是，当尝试使用 df.to_excel 将数据框写入 excel 文件时，我收到以下错误，“时间戳减法必须具有相同的时区或没有时区”。
查看不同的线程，我尝试使用 tz_localize(None) 和 tz_convert 将日期时间转换为 UTC，然后写入文件，但没有奏效。
#C:\Users\cgarrido\AppData\Local\Programs\Python\Python37\Scripts>
import pandas as pd
from pandas import Timestamp
import pytz
from pytz import all_timezones
import datetime
import xlrd
import xlwt
data = pd.read_excel('lab.xls')
data = data.drop_duplicates('Site UP')
data = data.drop(data[data.Duration == 0].index)
data.to_excel('no_duplicates_no_zeroes.xls')
data['Site DOWN'] = pd.to_datetime(data['Site DOWN'])
data['Site UP'] = pd.to_datetime(data['Site UP'])
def conversion_function(x: pd.Series) -> pd.Timestamp:
zones = {'Atlantic': 'Canada/Atlantic',
'Central': 'US/Central',
'Eastern': "US/Eastern",
'Mountain': 'US/Mountain',
'Pacific': 'US/Pacific'}
raw_time = pd.Timestamp(x[1])
loc_raw_time = raw_time.tz_localize("US/Pacific")
return loc_raw_time.tz_convert(zones[x[0]])
data['Adjusted_Down'] = data[['Time_Zone', 'Site DOWN']].apply(conversion_function, axis=1)
data['Adjusted_Up'] = data[['Time_Zone', 'Site UP']].apply(conversion_function, axis=1)
data.to_excel('no_duplicates_no_zeroes.xls')
这是一个数据框示例（在转换日期之前）
Region Time_Zone Site DOWN Site UP Duration
US Mountain 07/22/19 01:19 07/22/19 01:23 4
Canada Central 07/22/19 01:19 07/22/19 01:23 4
US Eastern 07/21/19 22:50 07/21/19 22:52 2
US Eastern 07/16/19 11:26 07/16/19 11:29 3
US Pacific 07/25/19 16:47 07/25/19 16:50 3
US Pacific 07/22/19 13:13 07/22/19 13:15 2
US Pacific 07/22/19 01:20 07/22/19 01:22 2
US Central 06/30/19 11:56 06/30/19 11:58 2
US Mountain 07/29/19 03:14 07/29/19 03:16 2
US Mountain 07/22/19 01:19 07/22/19 01:23 4
Canada Atlantic 07/22/19 01:19 07/22/19 01:21 2
Canada Eastern 07/03/19 06:51 07/03/19 11:34 283
US Eastern 07/21/19 16:51 07/21/19 16:53 2
US Eastern 07/21/19 13:43 07/21/19 16:31 168
Canada Atlantic 07/22/19 01:19 07/22/19 01:21 2
US Mountain 07/18/19 01:30 07/18/19 01:58 28
US Central 07/22/19 01:20 07/22/19 01:22 2
Canada Central 07/17/19 22:17 07/17/19 22:21 4
Canada Central 07/15/19 06:14 07/15/19 08:42 148
Canada Mountain 07/22/19 01:19 07/22/19 01:23 4
Canada Mountain 07/22/19 01:18 07/22/19 01:21 3
Canada Central 07/22/19 01:20 07/22/19 01:22 2
Canada Central 07/17/19 09:26 07/17/19 09:28 2
Canada Atlantic 07/30/19 18:18 07/31/19 04:44 626
Canada Atlantic 07/29/19 21:20 07/29/19 21:22 2
Canada Atlantic 07/25/19 03:41 07/25/19 03:43 2
Canada Atlantic 07/22/19 01:20 07/22/19 01:23 3
Canada Atlantic 07/21/19 22:50 07/21/19 22:50 0
Canada Eastern 07/24/19 01:57 07/24/19 03:55 118
因此，在尝试将数据框保存到 Excel 工作表时出现错误消息。
Traceback (most recent call last):
File "<pyshell#15>", line 1, in <module>
data.to_excel('final.xls', 'a+')
File "C:\Users\cgarrido\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas\core\generic.py", line 2127, in to_excel
engine=engine)
File "C:\Users\cgarrido\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas\io\formats\excel.py", line 662, in write
freeze_panes=freeze_panes)
File "C:\Users\cgarrido\AppData\Local\Programs\Python\Python37\lib\site-packages\pandas\io\excel.py", line 1720, in write_cells
val, style)
File "C:\Users\cgarrido\AppData\Local\Programs\Python\Python37\lib\site-packages\xlwt\Worksheet.py", line 1088, in write
self.row(r).write(c, label, style)
File "C:\Users\cgarrido\AppData\Local\Programs\Python\Python37\lib\site-packages\xlwt\Row.py", line 244, in write
date_number = self.__excel_date_dt(label)
File "C:\Users\cgarrido\AppData\Local\Programs\Python\Python37\lib\site-packages\xlwt\Row.py", line 99, in __excel_date_dt
delta = date - epoch
File "pandas\_libs\tslibs\timestamps.pyx", line 413, in pandas._libs.tslibs.timestamps._Timestamp.__sub__
TypeError: Timestamp subtraction must have the same timezones or no timezones
【问题讨论】：
-
我没有立即的答案，但它有助于允许重现错误 - 因为需要
data数据帧的一部分 - 您可以提供代码来创建它，或者例如data.to_dict()结果。这类似于您作为打印输出提供的输出，但允许重新创建错误并解决它。
标签： python pandas date datetime