使用python創建kmls時遇到問題

Question

我正在使用python和simplekml創建者創建kml文件。 由於某些原因，它創建了兩個kml文件，並且不會創建第三個文件。數據對我來說似乎很好。下面是代碼：

times=open("E:\\Python\Copyofresttable.csv","r") 
import time 
import csv 
import simplekml 
from time import strftime, localtime 
dayoftheweekvariable = strftime("%A", localtime()) 
print dayoftheweekvariable 
kml = simplekml.Kml() 


if dayoftheweekvariable == "Monday": 
    for line in times: 
     a = line.split(',') 
     if a[2] == "Monday": 
      print a[5] 

if dayoftheweekvariable == "Tuesday": 
    for line in times: 
     a = line.split(',') 
     if a[2] == "Tuesday": 
      print a[5] 

if dayoftheweekvariable == "Wednesday": 
    for line in times: 
     a = line.split(',') 

     if a[1]== "Iron Hill" and a[2] =="Wednesday": 
      kml.newpoint(name="Iron Hill", coords=[(-75.605507,39.960504)], description=a[5]) 
      kml.save("pythonmap.kml") 
      print "Creating KML" 

     if a[1]== "Side Bar and Resturant" and a[2] =="Wednesday": 
      kml.newpoint(name="Side Bar and Resturant", coords=[(-75.604805,39.960591)], description=a[5]) 
      kml.save("pythonmap.kml") 
      print "Creating KML" 

     if a[1]== "Barnaby's" and a[2] =="Wednesday": 
      kml.newpoint(name="Barnaby's", coords=[(-75.604049,39.959488)], description=a[5]) 
      kml.save("pythonmap.kml") 
      print "Creating KML" 

顯然在週三晚上測試了這一點。至於最後三個if語句，無論我穿什麼爲了他們，這將爲鋼鐵希爾KML和巴納比的，但不側杆。這是它返回的結果：

Wednesday 
Creating KML 
Creating KML 

Traceback (most recent call last): 
    File "C:/Users/75IV740906/Desktop/py117", line 26, in <module> 
    if a[1]== "Iron Hill" and a[2] =="Wednesday": 
IndexError: list index out of range 

錯誤消息調出什麼如果語句是最上面。我難倒了。希望我的問題是有道理的（它爲什麼不給我這個錯誤消息，並且只創建兩個的KML無論什麼樣的順序if語句中）

Answer 1

變化

times=open("E:\\Python\Copyofresttable.csv","r") 

到：

times=open("E:\\Python\Copyofresttable.csv","r").read() 

在你的第一行添加一個

print('#Times: {0}'.format(len(times.split()))) 

確保你有足夠的線...

更新：

你回溯（在評論）說明你的（1？）dayoftheweek似乎是一個星期三，這就是爲什麼你的第一雙中頻被忽略。那麼看起來好像你的名單a沒有nough條目。

您可以檢查這個假設有print("# a: {0}".format(len(a)))

所以，如果你有少於3項a[2]==一定會失敗，因爲list index out of range ;-)

啊，我沒有正確的第一次讀你的問題。而更有意義的是這樣，如果每1 if語句是拋出一個異常....

更新2： 順便說一句：你應該rearange您for line in times:循環，以較少的冗餘方式，如：

lines=open("E:\\Python\Copyofresttable.csv","r").readlines() 
... 
for line in lines: 
    a = line.split(',') 
    if a[2] == "Monday" == dayoftheweek: 
     ... 
    elif a[2] == "Tuesday" == dayoftheweek: 
     ... 
    elif a[1]== "Iron Hill" and a[2] =="Wednesday" == dayoftheweek: 
     ... 

更新3：

如果ommiting一些線條，通過做一些像你可以 「騙」 了一點：

a = line.split(',') 
if len(a) < 6: 
    continue # ignores the rest of the loop and jumps stright to the next iteration