Open explorer on a file

From Geoff Chappell's The Windows Explorer Command Line

import subprocess
subprocess.Popen(r'explorer /select,"C:\path\of\folder\file"')

As explorer could be overridden it would be a little safer to point to the executable directly. (just had to be schooled on this too)

And while you're at it: use Python 3s current subprocess API: run()

import os
import subprocess
FILEBROWSER_PATH = os.path.join(os.getenv('WINDIR'), 'explorer.exe')

def explore(path):
    # explorer would choke on forward slashes
    path = os.path.normpath(path)

    if os.path.isdir(path):
        subprocess.run([FILEBROWSER_PATH, path])
    elif os.path.isfile(path):
        subprocess.run([FILEBROWSER_PATH, '/select,', path])

Alternatively, you could use the fileopenbox module of EasyGUI to open the file explorer for the user to click through and then select a file (returning the full filepath).

import easygui
file = easygui.fileopenbox()

For anyone wondering how to use a variable in place of a direct file path. The code below will open explorer and highlight the file specified.

import subprocess
subprocess.Popen(f'explorer /select,{variableHere}')

The code below will just open the specified folder in explorer without highlighting any specific file.

import subprocess
subprocess.Popen(f'explorer "{variableHere}"')

Ive only tested on windows

import subprocess
subprocess.Popen(r'explorer /open,"C:\path\of\folder\file"')

I find that the explorer /open command will list the files in the directory. When I used the /select command (as shown above), explorer opened the parent directory and had my directory highlighted.

Code To Open Folder In Explorer:

import os
import ctypes
SW_SHOWDEFAULT = 10
path_to_open = os.getenv('windir')
ctypes.windll.shell32.ShellExecuteW(0, "open", path_to_open, 0, 0, SW_SHOWDEFAULT)