我在python中创建工作日志,用户可以在其中输入任务或按日期查找任务。我的初始提示要求用户输入任务或按日期查找。如果用户通过按日期查找开始 - 程序正常工作并显示所有日期。如果用户通过添加任务开始,然后按日期查找任务,程序将显示“对象不支持索引错误”。我认为由于某种原因,该清单正在被清空,但我不能为我的生活了解这可能发生的地点或时间。这是主要的工作日志文件:
import csv
import re
import datetime
from task import Task
from task_list import TaskList
class Worklog():
def __init__(self):
self.filename = "work_log.csv"
self.tasklist = TaskList()
self.tasklist.read_task_from_file(self.filename)
def search_by_date(self):
for d, i in enumerate(self.tasklist.dates()):
print(d+1, ':', i)
# while True:
# datereq = input("Select Number To See Tasks For A Date").strip().lower()
# try:
# datereq = int(datereq)
# return datereq
# except ValueError:
# print("Invalid Entry. Please try again")
# continue
def search_by_time(self):
pass
def exact_search(self):
pass
def pattern_search(self):
pass
def add_task(self):
task = Task()
task.input_task()
task.input_minutes()
task.input_notes()
task.date = datetime.date.today()
self.tasklist.app_task(task)
self.tasklist.save_task_to_file(self.filename,task)
def lookup_task(self):
if len(self.tasklist.task_list) == 0:
print("Your task log is empty.\n")
input("Hit Enter to add a new task.")
else:
while True:
lookup = input("Lookup by Date(D), Time(T), Exact Search(E) or Pattern(P): ")
lookup.lower()
if lookup == 'd':
self.search_by_date()
break
elif lookup == 't':
self.search_by_time()
break
elif lookup == 'e':
self.exact_search()
break
elif lookup == 'p':
self.pattern_search()
break
else:
print("Sorry invalid option. Please try again")
def start_message(self):
while True:
q = input("Add New Task(1) or Lookup Task(2) or Quit(3): ".strip().lower())
if q == "1":
self.add_task()
elif q == "2":
self.lookup_task()
elif q == "3":
exit()
else:
print("Sorry that's an invalid entry. Please try again.")
continue
if __name__ == '__main__':
log = Worklog()
log.start_message()
错误指向 date 函数,如下所示,以及我的'task-list'类的一些其他方法。我正在索引此列表的方式是否存在问题?或者我是正确的,当用户进入循环的第二步时,task_list列表会以某种方式重置。感谢:
def app_task(self, task):
self.task_list.append(task)
def save_task_to_file(self,filename,task):
with open(filename, 'a', newline="\n", encoding="utf-8") as csvfile:
# creating a csv writer object
csvwriter = csv.writer(csvfile, delimiter=",")
# writing the data rows
csvwriter.writerow([task.date, task.task, task.minutes, task.notes])
def read_task_from_file(self,filename):
with open(filename, 'r') as csvfile:
task_reader = csv.reader(csvfile, delimiter=',')
for row in task_reader:
task = Task()
self.task_list.append(row)
return self.task_list
def dates(self):
self.read_task_from_file("work_log.csv")
dates = []
for row in self.task_list:
date = row[0]
if row[0] not in dates:
dates.append(date)
return sorted(dates)
注意 - 这是work_log.csv文件的示例:
2017-03-23,gardening,30,not really
2017-03-23,bowling,30,none
2017-03-23,bowling,90,none
2017-03-23,bowling,93,none
2017-03-23,baseball,2,none
2017-03-23,bowling,20,none
2017-03-23,base,0,jj
2017-03-23,bowling,33,none
根据杰克的建议添加:
def get_date(self):
for row in self.task_list:
d = row[0]
return d
def dates(self):
dates = []
for row in dates:
date = row.get_date()
if date not in dates:
dates.append(date)
return sorted(dates)
答案 0 :(得分:3)
问题似乎是您致电Observable<number>
的地方;这是因为在迭代response: StripeCardTokenResponse
时,循环date = row[0]
将成为row
对象。在这种情况下,您尝试索引到Task
对象,该对象未设置为索引。
这方面的简单解决方案是将self.task_list
替换为Task
;它将直接访问row[0]
对象的row.date
字段,而无需为索引编制索引。