TypeError：int（）參數必須是字符串，類似字節的對象或數字，而不是'Calendar'

Question

我有允許用戶點擊日曆並輸出日期的代碼。我想把日期鏈接到一個SQL查詢，但有錯誤：

File "C:\Users\dansi\AppData\Local\Programs\Python\Python36-32\gui test 3.py", line 293, in datefunction 
agro = int(agro) 
TypeError: int() argument must be a string, a bytes-like object or a number, not 'Calendar' 

代碼的問題：

def datefunction(self,agro): 
    print(agro) 
    agro = int(agro) 
    agro = datetime.datetime(agro) 
    timeslot = cursor.execute('''SELECT * FROM dates WHERE Date = (?)''',(agro,)) 
    list1 = list(cursor.fetchall()) 
    print(list1) 

def _show_selection(self, text, bbox): 
    """Configure canvas for a new selection.""" 
    agro = self.selection 
    print(self.selection, self.datefunction()) 
    print(agro) 

比方說，用戶點擊在3月3日，它會輸出

'2017-03-03 00-00-00' 

如何才能克服這個錯誤？

Answer 1

問題是datefunction有一個參數agro。但由於它是一個實例函數，因此self的範圍是agro。

def datefunction(self,agro): 
    print(agro) 
    agro = int(agro) 
    agro = datetime.datetime(agro) 
    timeslot = cursor.execute('''SELECT * FROM dates WHERE Date = (?)''',(agro,)) 
    list1 = list(cursor.fetchall()) 
    print(list1) 

def _show_selection(self, text, bbox): 
    """Configure canvas for a new selection.""" 
    agro = self.selection 
    print(self.selection, self.datefunction(agro)) 
    print(agro)

編輯：

如果你只想要日期，你可以修改代碼：

def datefunction(self,agro): 
    print(agro) 
    agro = int(agro) 
    agro = datetime.datetime(agro).date() 
    timeslot = cursor.execute('''SELECT * FROM dates WHERE Date = (?)''',(agro,)) 
    list1 = list(cursor.fetchall()) 
    print(list1) 

def _show_selection(self, text, bbox): 
    """Configure canvas for a new selection.""" 
    agro = self.selection 
    print(self.selection, self.datefunction(agro)) 
    print(agro)