出力csvファイルに期待される結果が表示されないのはなぜですか？

Question

import glob 
from datetime import date 
import csv 
import numpy as np 
import pandas as pd 
from itertools import islice 
path = 'C:/Users/Calum/AppData/Local/Programs/Python/Python35-32/Python Programs/Brunel Forecasts/November/*.csv' 
for fname in glob.glob(path): 
    with open (fname) as f: 
     readCSV = csv.reader ((islice(f, 24, None)), delimiter = ';') 
     irrad_fore = [] 
     timestamp = [] 
     day = [] 
     month = [] 
     year = [] 
     for row in readCSV: 
      irrad1 = row[4] 
      time = row[3] 
      d = row[2] 
      m = row[1] 
      y = row[0] 

      irrad_fore.append(irrad1) 
      timestamp.append(time) 
      day.append(d) 
      month.append(m) 
      year.append(y) 

      out = csv.writer(open('C:/Users/Calum/AppData/Local/Programs/Python/Python35-32/Python Programs/Brunel Forecasts/forecast_11-2016.csv','w', newline=''), delimiter=';') 
      for values in zip(year, month, day, timestamp, irrad_fore): 
       x = values 
       out.writerow(x) 

出力csvファイルには最終日分のデータのみが含まれているのはなぜですか？変数xを画面に印刷すると、月全体のデータが含まれます。

Answer 1

EDIT：CSVファイルを書くことはおそらく良いだろうが、

path = 'C:/Users/Calum/AppData/Local/Programs/Python/Python35-32/Python Programs/Brunel Forecasts/November/*.csv' 

irrad_fore = [] 
timestamp = [] 
day = [] 
month = [] 
year = [] 

for fname in glob.glob(path): 
    with open (fname) as f: 
     readCSV = csv.reader ((islice(f, 24, None)), delimiter = ';') 

     for row in readCSV: 
      irrad1 = row[4] 
      time = row[3] 
      d = row[2] 
      m = row[1] 
      y = row[0] 

      irrad_fore.append(irrad1) 
      timestamp.append(time) 
      day.append(d) 
      month.append(m) 
      year.append(y) 

out = csv.writer(open('C:/Users/Calum/AppData/Local/Programs/Python/Python35-32/Python Programs/Brunel Forecasts/forecast_11-2016.csv','w', newline=''), delimiter=';') 
for values in zip(year, month, day, timestamp, irrad_fore): 
    x = values 
    out.writerow(x) 

：

何を（？基本的にすべてのファイルを連結）を達成しようとしているが、このようなものであるように私には思えます一時的なリストにすべてを集約せずに直接ファイル：私は最初に以前のステートメントを移動するときしかし、問題を解決しない

path = 'C:/Users/Calum/AppData/Local/Programs/Python/Python35-32/Python Programs/Brunel Forecasts/November/*.csv' 
out = csv.writer(open('C:/Users/Calum/AppData/Local/Programs/Python/Python35-32/Python Programs/Brunel Forecasts/forecast_11-2016.csv','w', newline=''), delimiter=';') 

for fname in glob.glob(path): 
    with open (fname) as f: 
     readCSV = csv.reader ((islice(f, 24, None)), delimiter = ';') 

     for row in readCSV: 
      irrad1 = row[4] 
      time = row[3] 
      d = row[2] 
      m = row[1] 
      y = row[0] 

      out.writerow([y,m,d,time,irrad1])