Question

这是我的代码：

import os
import time

initial_date = '22.01.2015 02:00:00'
initial = time.mktime(time.strptime(initial_date, "%d.%m.%Y %H:%M:%S"))

final_date = '15.04.2015 03:45:00'
final = time.mktime(time.strptime(final_date, "%d.%m.%Y %H:%M:%S"))

path = 'Transfer\Praktikanten\2017-05-Sharon\M02_Modelldaten\Sofia_HW_032015_12\01.01.2015-31.12.2015_2014\22.02.2015-15.04.2015_201410XX'

directory = os.path.join("x:\\","path")
for root,dirs,files in os.walk(directory):
    for files in directory:
       if file.endswith(".csv"):
          f_in=open(file, 'r').readlines()

          Datum_Uhrzeit= []
          Wasserstand= []

          f_out = open('NEW_file','w')

          f_out.write(f_in[0])

          for i in range(1, len(f_in)):

            Datum_Uhrzeit= f_in[i].split(';',)[0]
            Wasserstand = f_in[i].split(';')[1]
            Datum_Uhrzeit= time.mktime(time.strptime(Datum_Uhrzeit, "%d.%m.%Y %H:%M:%S"))
            if initial <= Datum_Uhrzeit <= final:
                f_out.write(f_in[i])
                f_out.close()

我正在尝试从上述文件夹中的所有CSV文件中提取给定的日期时间，并将这些数据写入new_file。

示例CSV文件： CSV file headers and data

代码不返回任何错误，但它不会生成新文件。

Answer 1

所以我设法解决了这个问题。以下是任何人未来需要的代码：

import os
import time

initial_date = '22.02.2015 02:00:00'
initial = time.mktime(time.strptime(initial_date, "%d.%m.%Y %H:%M:%S"))

final_date = '15.04.2015 03:45:00'
final = time.mktime(time.strptime(final_date, "%d.%m.%Y %H:%M:%S"))


path = 'x:/Transfer/Praktikanten/2017-05-Sharon/M02_Modelldaten/Sofia_HW_032015_12/01.01.2015-31.12.2015_2014/22.02.2015-15.04.2015_201410XX/'
for root,dirs,files in os.walk(path):
    for file in files:
       if file.endswith(".csv"):
          f_out = open('NEW_' + file,'w')
          f_in=open(file, 'r').readlines()

          f_out.write(f_in[0])

          for i in range(1, len(f_in)):
              Datum_Uhrzeit= f_in[i].split(';',)[0]
              Datum_Uhrzeit = time.mktime(time.strptime(Datum_Uhrzeit, "%d.%m.%Y %H:%M:%S"))
             if initial <= Datum_Uhrzeit <= final:
                 f_out.write(f_in[i])
f_out.close()

Answer 2

您的一些变量包含空格。这是不允许的。

示例：Datum Uhrzeit =＆gt; Datum_Uhrzeit（甚至更好：datum_uhrzeit）。

检查PEP-8

从csv文件中提取日期范围并将其写入新文件，没有任何反应

2 个答案: