Hello, everyone. =2001 using Python to calculate

There's a third grade question:
Big
Everyone
Hello everyone
Hello, everyone.
2 0 0 1

Everybody good + everybody good + everybody + big =2001 beg big =? Home =? Good =? Ah =?

Here's the code:

#!/usr/bin/env python

#coding: Utf-8

Import Os,sys

"""

Big

Everyone

Hello everyone

Hello, everyone.

2 0 0 1

"""

def sum (num):

#with Open Num.txt as F:

If Os.path.exists (' Num.txt '): # To determine if a file exists

If Os.path.getsize (' Num.txt '): # Determines if the file is empty

F=open (' Num.txt ', ' A + ') # Open file in Append mode

F.truncate () # Empty file contents

Else

Os.mknod (' Num.txt ')

F=open (' Num.txt ', ' A + ')

For d in range (10):

For j in Range (10):

For h in range (10):

For a in range (10):

Sum=d*1000+d*100+d*10+d+j*100+j*10+j+h*10+h+a

F.write ('%s,%s,%s,%s =%s \ n '% (d,j,h,a,sum))

if sum = = Int (num):

Print D,j,h,a

if d==j==h==a = = 9:

Print "%s is a last num"% sum

Print "Please input the num must less than%s"% sum

F.close ()

If __name__== ' __main__ ':

If Len (sys.argv) = = 1:

SUM (2001)

Elif len (sys.argv) = = 2:

Sum ("%s"% sys.argv[1])

Else

Print "Use:python%s%s"% (sys.argv[0], ' num ')

Hello, everyone. =2001 using Python to calculate