从任何目录打开文件

Question

I'm writing this basic code that runs files on my computer but right now it can only open files from the directory it is in. is there a way to open files from anywhere on my computer or would I have to give the path for the file.

Here is my code:

def run(filename):
    try:
        import os
        os.startfile(filename)
    except:
        WindowsError
        print ("Thats not a valid file name")

while True:

    filename = raw_input("Filename: ")
    run(filename)
    x = raw_input("Would you like to open another file? [y/n]: ")
    if x == "n":
        quit()

This opens and runs the files fine but only from the directory its saved in.

Answer 1

you can do this a couple of different ways

either use entire paths

or change the directory its looking at

changing the directory is pretty easy

os.chdir("PATH TO DIRECTORY")

Answer 2

def run(filename):
    for directoy,files,dirs in os.walk("C:\\"):
        if filename in files:
           return os.startfile(os.path.join(directory,filename))

fair warning it may be slow ...

Answer 3

Can you try it:

import os
def run(filename):
    if not os.path.exists(filename):
       print("Thats not a valid file name")
       return
    if os.path.isfile(filename):
       # Your code here
    elif os.path.isdir(filename):
       # Your code here