how to run a file from another python file

匿名 (未验证) 提交于 2019-12-03 03:04:01

问题:

a.py

from kivy.app import App from kivy.uix.dropdown import DropDown from kivy.lang import Builder   class CustDrop(DropDown):     def __init__(self, **kwargs):         super(CustDrop, self).__init__( **kwargs)         self.select('')   kv_str = Builder.load_string('''   BoxLayout:     orientation: 'vertical'     BoxLayout:         canvas.before:             Rectangle:                 pos: self.pos                 size: self.size             Color:                 rgb: (1,1,1)         size_hint_y:1          Button:             id: btn             text: 'test'             on_release: dropdown.open(self)             #size_hint_y: None             #height: '48dp'             CustDrop:              id: dropdown              Button:                 text: 'Run another script'                 size_hint_y: None                 height: '48dp'          Label:             size_hint_x: 4      Label:         size_hint_y: 9  ''')   class ExampleApp(App):     def build(self):         return kv_str  if __name__ =='__main__':     ExampleApp().run() 

b.py

import kivy kivy.require('1.0.6') # replace with your current kivy version !  from kivy.app import App from kivy.uix.label import Label   class MyApp(App):      def build(self):         return Label(text='Hello world')   if __name__ == '__main__':     MyApp().run() 

when i run a.py file after that i click on test then dropdown show 'run another script'.when i click on 'run another script'(sub menu of test) then how to run b.py(MyApp().run()).It should be print 'Hello world' in new window.

回答1:

The solution is as follow:

Snippet

a.py

...  kv_str = Builder.load_string(''' #:import os os ...         CustDrop:              id: dropdown              Button:                 text: 'Run another script'                 size_hint_y: None                 height: '48dp'                 on_release: os.system("python3 b.py") 

Output



回答2:

instead of calling to system, there is a python module to do that

https://docs.python.org/3/library/runpy.html



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