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Python Python for File Systems Manipulation Daily Backup

Posted by jdee
jdee
6,655 Points

help

Hi,

My code is not being accepted though it works with the below calls in Eclipse using pydev. Also, I tried pulling up a workspace for this to get better traceroutes, but when I create a new one, then pick a port upon prompt, it says it's unavailable. I have a ticket in with Support.

create_daily_dir("03-27-2018") create_daily_dir("2014-12-21")

backup.py 
import os
import re
def create_daily_dir(string):

    if (os.path.exists('financial')):

        ### Test for date pattern
        # yyyy-mm-dd
        if( re.match(r'\d{4}-\d{2}-\d{2}', string)):
            # Correct pattern
            os.mkdir("financial\\" + string)

        # mm-dd-yyyy
        elif( re.match(r'\d{2}-\d{2}-\d{4}', string)):
            # Incorrect pattern
            mm, dd, yyyy = string.split("-")
            os.mkdir("financial\\" + yyyy+"-"+mm+"-"+dd)

        else:
            print("Incorrect input!")

3 Answers

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points

You should be using a forward slash in your path. The instructions give an example:

we'd have a directory structure like financial/2017-04-22/

If you want to try this in a workspace paste the following into a file named test.py.

import os
import re

def create_daily_dir(string):

    if (os.path.exists('financial')):

        ### Test for date pattern
        # yyyy-mm-dd
        if( re.match(r'\d{4}-\d{2}-\d{2}', string)):
            # Correct pattern
            os.mkdir("financial/" + string)

        # mm-dd-yyyy
        elif( re.match(r'\d{2}-\d{2}-\d{4}', string)):
            # Incorrect pattern
            mm, dd, yyyy = string.split("-")
            os.mkdir("financial/" + yyyy+"-"+mm+"-"+dd)

        else:
            print("Incorrect input!")

os.mkdir('financial')
create_daily_dir("10-09-2019")             
create_daily_dir("2019-10-10")

Then in the console enter python test.py. From here you can right click the left hand pane with the workspace file list and choose Refresh. Or use console command ls to list files and folders and see the new financial directory; or cd financial to change to the financial directory then ls to list its contents.

jdee
jdee
6,655 Points
jdee
jdee
6,655 Points

Thanks. You're suggestion worked in the workspace.

One last question. Below is what I submitted and it worked - using os.mkdir("financial/" + string) if date string is correct, but os.path.join(os.getcwd(), yyyy+"-"+mm+"-"+dd) if date string not correct.

It would not accept it with os.path.join(os.getcwd(), string) if date is correct.

Why?

def create_daily_dir(string):

    ### date pattern filter
    # yyyy-mm-dd
    if( re.match(r'\d{4}-\d{2}-\d{2}', string)):
        # Correct pattern
        os.mkdir("financial/" + string)  # <= this worked here...but why
        #os.path.join(os.getcwd(), string)
    # mm-dd-yyyy
    elif( re.match(r'\d{2}-\d{2}-\d{4}', string)):
        # Incorrect pattern
        mm, dd, yyyy = string.split("-")
        #os.mkdir("financial/" + yyyy+"-"+mm+"-"+dd)
        os.path.join(os.getcwd(), yyyy+"-"+mm+"-"+dd)

    else:
        print("Incorrect input!")
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points

Was kind of confused at first because the I re-read the instructions and they state financial is the current directory. I read the docs and it looks like relative directories are supported.

os.path.join() returns the path as a string so you'd have to pass that to os.mkdir() to create the directory. I tried in a workspace where I modified test.py and moved it to the financial directory and got the following to work.

import os
import re

def create_daily_dir(string):
    ### Test for date pattern
    # yyyy-mm-dd
    if( re.match(r'\d{4}-\d{2}-\d{2}', string)):
        # Correct pattern
        print("making " + os.path.join(os.getcwd(), string))
        os.mkdir(os.path.join(os.getcwd(), string))
        # mm-dd-yyyy
    elif( re.match(r'\d{2}-\d{2}-\d{4}', string)):
        # Incorrect pattern
        mm, dd, yyyy = string.split("-")
        print("making yyyy-mm-dd")
        os.mkdir(yyyy+"-"+mm+"-"+dd)

    else:
        print("Incorrect input!")


create_daily_dir("10-09-2019")             
create_daily_dir("2019-10-10")

Can't get it to work in the challenge though. I receive Bummer: Didn't find the right directory for a month-day-year date.