creating file and folder loop

Question

Hey there I tried making a loop for creating folders and files. According to me the program should work like this :

1. create 1st folder and 1 file inside it.
2. create 2nd folder and 1 file inside it

and it goes on..... What my program does is :

1. create 1 file
2. create folders

my program

import os,sys

di=("ab")
a=0
i=0
fi=open("az.txt","w")

def file():
    for i in range(0,10):
        fi.write(str(i))

def mk():
    for a in range(0,10):
        os.mkdir(di+str(a))
        file()

mk()

please help

Answer 1

This script will create a folders with the name "a", "b", "c" and put files 1.txt 2.txt .. 5.txt in each folder.

Make a changes as you need as try it.

import os
for i in "abc":
    os.system ("mkdir "+i)
    for j in range (5):
            os.system ("touch "+str(i)+"/"+str(j)+".txt")

Answer 2

Hey there I tried making a loop for creating folders and files. According to me the program should work like this : 1) create 1st folder and 1 file inside it. 2) create 2nd folder and 1 file inside it and it goes on..... What my program does is : 1) create 1 file 2) create folders

Indeed, it does the latter and not the former. What your program does is create directories, and write:

0123456789

ten times inside az.txt. Your error is that you're opening a file outside of any loop, and then you write to it within a loop.

I guess, that's what you want:

import os,sys

di="ab"

def mk_file(di):
    for i in range(0,10):
        with open("{}/az_{}.txt".format(di,i), "w") as fi:
            fi.write(str(i))

def mk_dir():
    for a in range(0,10):
        dname = "{}_{}".format(di, str(a))
        os.mkdir(dname)
        mk_file(dname)

if __name__ == "__main__":
    mk_dir()