Python 我使用input、map和int geves me的最基本的代码”；类型错误：'；str'；对象不可调用"；

我在GoogleCollab中使用此代码询问用户输入日期 但在执行代码时，我得到

TypeError:“str”对象不可调用

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我没有调用任何字符串，有什么问题吗？

代码是正确的。这是缩进的问题。

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Python有几个函数（

int

，

input

，

map

，

list

，

set

，

dict

，

min

，…）可以在代码中使用

这些函数的名称不受保护，无法以其他方式使用。但是，将它们用作变量名会隐藏原始函数，使其无法访问

这样做会导致此类错误消息

演示：

输出：

The 'int' function was overwritten to be a string
Enter date: 2021,2,2
'str' object is not callable 

The 'map' function was overwritten to be a string
Enter date: 2021,2,2
'str' object is not callable 

The 'input' function was overwritten to be a string
'str' object is not callable 

The 'datetime' function was overwritten to be a string
Enter date: 2021,2,2
'str' object is not callable 

---

您的代码非常好，它不会触发任何您可能为字符串指定的

input

或

map

错误。检查前面几行，避免使用Python内置变量名。我认为缩进只是不正确的复制粘贴。不正确的缩进不会导致OP提到的“TypeError:'str'对象不可调用”。

from datetime import datetime

# store the original functions under different name for restoring them later
old_int = int
old_map = map
old_input = input
old_dt = datetime

for what in ["int", "map", "input", "datetime"]:
    # restore original functions to their names
    int, map, input, datetime = old_int, old_map, old_input, old_dt

    # set current function to be a string
    if what == "int": 
        int = "some string"
    elif what == "map": 
        map = "some string"
    elif what == "input": 
        input = "some string"
    else: 
        datetime = "some string"

    print(f"The '{what}' function was overwritten to be a string")

    # try to use the overwritten function and print the error message if it happens
    try:
        date_entry = input('Enter date: ')
        year, month, day = map(int, date_entry.split(','))
        date = datetime(year, month, day)
    except Exception as e:
        print(e, "\n")

The 'int' function was overwritten to be a string
Enter date: 2021,2,2
'str' object is not callable 

The 'map' function was overwritten to be a string
Enter date: 2021,2,2
'str' object is not callable 

The 'input' function was overwritten to be a string
'str' object is not callable 

The 'datetime' function was overwritten to be a string
Enter date: 2021,2,2
'str' object is not callable