如何删除Python中的文件或文件夹？

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os.remove() will remove a file.

os.rmdir() will remove an empty directory.

shutil.rmtree() will delete a directory and all its contents.

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Python Syntax to Delete a file

import os
os.remove("/tmp/<file_name>.txt")

OR

import os
os.unlink("/tmp/<file_name>.txt")

Best Practice:
1. First check whether the file or folder exits or not then only delete that file. This can be achieved in two ways :
a. os.path.isfile("/path/to/file")
b. Use exception handling.

EXAMPLE for os.path.isfile

#!/usr/bin/python
import os
myfile="/tmp/foo.txt"

## if file exists, delete it ##
if os.path.isfile(myfile):
    os.remove(myfile)
else:    ## Show an error ##
    print("Error: %s file not found" % myfile)

Exception Handling

#!/usr/bin/python
import os

## get input ##
myfile= raw_input("Enter file name to delete : ")

## try to delete file ##
try:
    os.remove(myfile)
except OSError, e:  ## if failed, report it back to the user ##
    print ("Error: %s - %s." % (e.filename,e.strerror))

RESPECTIVE OUTPUT

Enter file name to delete : demo.txt
Error: demo.txt - No such file or directory.

Enter file name to delete : rrr.txt
Error: rrr.txt - Operation not permitted.

Enter file name to delete : foo.txt 

Python Syntax to delete a folder

shutil.rmtree()

Example for shutil.rmtree()

#!/usr/bin/python
import os
import sys
import shutil

# Get dir name
mydir= raw_input("Enter directory name : ")

## Try to remove tree; if failed show an error using try...except on screen
try:
    shutil.rmtree(mydir)
except OSError, e:
    print ("Error: %s - %s." % (e.filename,e.strerror))

---

Use

shutil.rmtree(path[, ignore_errors[, onerror]])

(see complete doc on shutil) and/or

os.remove

and

os.rmdir

(complete doc on os)

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