How to delete a python directory effectively?

How to delete a python directory effectively?

By : Mohsen Heydari
Date : November 18 2020, 11:13 AM
should help you out If shutil.rmtree(path) raises "No such file or directory" exception for the path directory itself then it is probably a bug in shutil.rmtree() -- it should be happy that somebody did its work for it -- it should ignore such errors.
You could write a wrapper that workarounds the problem:
code :
import errno
import shutil

def rmtree(path):
        return shutil.rmtree(path)
    except OSError as e:
        if e.errno == errno.ENOENT and e.filename == path:
            pass # path is gone already -- ignore the exception

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Python - Delete directory which contains actual Python Script

Python - Delete directory which contains actual Python Script

By : James Weech
Date : March 29 2020, 07:55 AM
To fix this issue No program can delete itself or the folder it's in while it's still running. The OS will prevent this from happening, independently of whether you use Python or C or any other language.
You have two options:
How to debug an issue deleting a directory using File.Delete and Directory.Delete

How to debug an issue deleting a directory using File.Delete and Directory.Delete

By : Said_Omar
Date : March 29 2020, 07:55 AM
help you fix your problem Have a look at the eventlog on the server; you might find an exception\error message there.
You could consider using Directory.Delete(path, true) so you delete the folder and all its content in one call (unless I do not understand your code correctly).
how to delete has_many association effectively ?

how to delete has_many association effectively ?

By : Дмитрий Тарасенко
Date : March 29 2020, 07:55 AM
Hope this helps If you define a foreign key constraint with ON DELETE CASCADE, all depending rows are deleted automatically when deleting the parent row. Then you only need a single command.
code :
DELETE FROM users WHERE user_id = $user_id;
DELETE FROM photos WHERE user_id = $user_id;
Effectively using try() to delete a file

Effectively using try() to delete a file

By : daffodil11
Date : March 29 2020, 07:55 AM
may help you . I'm writing a script for a rails app that manages (in a loose sense of the term) files in Dropbox through the dropbox-api gem. Anyway, I'm attempting to delete a file (if it exists) before taking a set of actions. , You need to write the code in begin and rescue block. Like this:
code :
 #code here which may throw error
 #code here to rescue if it throws error
 puts "File not found"
Delete duplicate records (effectively)

Delete duplicate records (effectively)

By : Sharuje
Date : March 29 2020, 07:55 AM
hope this fix your issue A single subselect should be enough. You could probably delete phrases with equal titles with ids which are greater than the current one:
code :
    SELECT p1.id FROM phrases p2 WHERE p.title = p2.title AND p.id > p2.id
DELETE FROM phrases p USING phrases p2 WHERE p.title = p2.title AND p.id > p2.id;
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