python编程 从入门到实践 9.3 TypeError

Posted on | Edited on

TypeError

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class Car():
    def __init__(self, make, model, year):
        self.make = make
        self.model = model
        self.year = year
        self.odometer_reading = 0
        
    def get_descriptive_name(self):
        long_name = str(self.year) + ' ' + self.make + ' ' + self.model
        return long_name.title()
    
    def read_odometer(self):
        print("This car has " + str(self.odometer_reading) + " miles on it.")
        
    def update_odometer(self, mileage):
        if mileage >= self.odometer_reading:
            self.odometer_reading = mileage
        else:
            print("You can't roll back an odometer!")
    
    def increment_odometer(self, miles):
        self.odometer_reading += miles
        
class ElectricCar(Car):
    def __init__(self, make, model, year):
        super().__init__(make, model, year)

my_tesla = ElectricCar('tesla', 'model s', 2016)
print(my_tesla.get_descriptive_name())

直接在sublime text运行会出现错误：

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Traceback (most recent call last):
  File "D:\python_work\electric_car.py", line 28, in <module>
    my_tesla = ElectricCar('tesla', 'model s', 2016)
  File "D:\python_work\electric_car.py", line 26, in __init__
    super().__init__(make, model, year)
TypeError: super() takes at least 1 argument (0 given)

因为sublime text默认是Python2，所以我的vs code和pycharm都不会出现这个问题。

既然其他编辑器能正常运行，问题就只是出在sublime text上，那修改方法如下：

第1种

安装https://packagecontrol.io/packages/Python%203的python3：

sb1

注意这个的版本是2017年的。

具体步骤

  1. 先安装 Package Control
  2. 打开 Tools → Command Palette
  3. 选择 Package Control: Install Package

sb2

  1. 搜索Python 3 和 Cython+ ，找到并安装

sb3

sb5

  1. 修改View → Syntax → Open all with current extension as… →为 Python 3

sb4

如何安装Package Control

如果你没有安装过Package Control：

  1. 点击 Preferences > Browse Packages… menu
  2. Browse up a folder and then into the Installed Packages/ folder
  3. 下载 Package Control.sublime-package 然后复制到 Installed Packages/ 目录
  4. 重启 Sublime Text

第2种（推荐）

找到电脑里的python路径：

sb6

配置sublime text里运行python的环境：

打开 Tools → Build System→ New Build System...

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{
    "cmd": ["C:/Users/dell/AppData/Local/Programs/Python/Python36/Python.exe", "-u", "$file"],
    "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)",
    "selector": "source.python"
}

另存为Python3.6.8.sublime-build，然后在修改Tool → Build System →为 python 3.6.8

sb7

sb8