os module in python

import os
x="l1.py"
dir_name=os.getcwd()
print(dir_name)
l=os.listdir(dir_name)
print(l)
flag=0
for item in l:
if(x == item):
print("found")
flag=1
break

if(flag==0):
print("not found")

######################

import os
c=os.getcwd()
l=os.listdir(c)
x='exp2.py'
if(x in l):
print("found")
else:
print("not found")
print(l)
x='inh2.py'
for path,dir,name in os.walk("D:\\lab\\"):
print("path",path)
print("dir",dir)
print("file",name)
if(x in name):
print("found in ", path)
break;

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