Importing Python files that are in a folder

Question

I've been working on a project that creates its own .py files that store handlers for the method, I've been trying to figure out how to store the Python files in folder and open them. Here is the code I'm using to create the files if they don't already exist, then importing the file:

if os.path.isfile("Btn"+ str(self.ButtonSet[self.IntBtnID].IntPID) +".py") == False:
        TestPy = open("Btn"+ str(self.ButtonSet[self.IntBtnID].IntPID) +".py","w+")
        try:
            TestPy.write(StrHandler)
        except Exception as Error:
            print(Error)
        TestPy.close()
    self.ButtonSet[self.IntBtnID].ImpHandler = __import__("Btn" + str(self.IntBtnID))
    self.IntBtnID += 1

when I change this line:

self.ButtonSet[self.IntBtnID].ImpHandler = __import__("Btn" + str(self.IntBtnID))

to this:

self.ButtonSet[self.IntBtnID].ImpHandler = __import__("Buttons\\Btn" + str(self.IntBtnID))

the fill can't be found and ends up throwing an error because it can't find the file in the folder.

Do know why it doesn't work I just don't know how to get around the issue:/

My question is how do I open the .py when its stored in a folder?

Answer 1

You can't reference a path directory when you are importing files. Instead, you want to add the directory to your path and then import the name of the module.

import sys
sys.path.append( "Buttons" )
__import__("Btn"+str(self.IntBtnId))

See this so question for more information.