[英]Index out of range when reading from a csv file
此代码从文本文件中读取数据,然后继续按每行中包含的编号(从最低到最高)对程序创建的列表进行排序,然后程序应将输入的名称与列表中的名称相匹配,然后继续进行操作计算那个人的位置。
这是代码:
def Rank():
#Declare List
RankList=[]
#Opening and reading the file
with open('GolfInfo.txt','rU') as csvfile:
reader=csv.reader(csvfile)
for row in reader:
#Data added to list
RankList.append(row)
#List is sorted by amount of strokes taken (Total) from lowest to highest
RankList.sort()
index=0
Position=0
RankMessageFull=("")
for row in RankList:
#Checks to see if Name is present in the list
if row[1] == Name.get():
Position=index+1
#These if-elif-else statements determine a suitable suffix for the rank
if Position==1:
RankMessageFull=(Position,"st")
RankMessage.set(RankMessageFull)
elif Position==2:
RankMessageFull=(Position,"nd")
RankMessage.set(RankMessageFull)
elif Position==3:
RankMessageFull=(Position,"rd")
RankMessage.set(RankMessageFull)
else:
RankMessageFull=(Position,"th")
RankMessage.set(RankMessageFull)
else:
index=index+1
文本文件显示为:
63,April,"('-', 7)"
69,Betsy,"('-', 1)"
80,Laura,"('+', 10)"
93,Coco,"('+', 23)"
该行中发生错误:
if row[1] == Name.get():
但是我不知道为什么。 完整的错误消息可以在这里看到:
if row[1] == Name.get():
IndexError: list index out of range
RankMessage
是Tkinter Stringvar
, Name
也是Tkinter StringVar
。
在csv文件中似乎有些行仅包含一个或更少的项目。 您可以通过以下所示的简单更改避免将它们添加到RankList
中。 另请注意,您应该在Python 3中使用newline=''
选项open()
csv文件。
def Rank():
#Declare List
RankList=[]
#Opening and reading the file
with open('GolfInfo.txt','rU', newline='') as csvfile:
reader=csv.reader(csvfile)
for row in reader:
#Data added to list if not blank.
if row: # ADDED TEST!
RankList.append(row)
#List is sorted by amount of strokes taken (Total) from lowest to highest
RankList.sort()
...
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