Compare.py

"""
Compare two files: 
First check number of lines then number of characters
Then print the two line by line one on top of the other.
"""
from time import sleep 
from multiprocessing import Process 
fname0 = 'a.txt' 
fname1 = 'b.txt'
def basecompare(fname0,fname1):
    Len0 = open(fname0,"r").read()
    length0 = len(Len0)
    Len1 = open(fname1,"r").read()
    length1 = len(Len1)
    if length0 == length1:print "Number of characters is equal :\n",fname0,":",\
        length0,"\n",fname1,":",length1,"\n-------------\n"
    else:
        print "Number of characters is NOT equal :\n",fname0,":",\
        length0,"\n",fname1,":",length1,"\n-------------\n"
        return
    
def len0(fname0):
    with open(fname0) as f0:
        for i0, l0 in enumerate(f0):
            pass
    return i0 + 1

def len1(fname1):
    with open(fname1) as f1:
        for i1, l1 in enumerate(f1):
            pass
    return i1 + 1
print "File :",fname0,"has ",len0(fname0)," lines."\
    "\nFile :",fname1,"has ",len1(fname1)," lines.\n-----------\n\n"    


count0 = 0
count1 = 0
f0 = []
f1 = []
comp0 = []
comp1 = []
def loop(fname0,count0):
    text1 = open(fname0,"r").readlines()
    for line0 in text1:
        count0 =count0+1
        f0.extend(line0)

def loop2(fname1,count1):
    text2 = open(fname1,"r").readlines()
    for line1 in text2:
        count1 =count1+1
        f1.extend(line1)
            
loop(fname0,count0)
loop2(fname1,count1)          
def len1(fname1):
    with open(fname1) as f1:
        for i1, l1 in enumerate(f1):
            pass
    Numlines = i1 + 1
    return Numlines

def elnum0(count):
    Lcount0=0
    elements0 = "".join(f0)
    elements0 = elements0.split("\n")
    for element in elements0:
        Lcount0 = Lcount0 +1
        if Lcount0 == count:
            comp0.extend(element)
            print element
            
def elnum1(count):
    Lcount1=0
    elements1 = "".join(f1)
    elements1 = elements1.split("\n")
    for elemenT in elements1:
        Lcount1 = Lcount1 +1
        if Lcount1 == count:
            comp1.extend(elemenT)
            print elemenT,"\n"
            #if comp0 != comp1: print "An error starts the line above."
            #if comp0.extend(element) != comp1.extend(elemenT):print "XXXXXXXXXXXXXXXXXXXXXXX ERROR."
            
count=0 
basecompare(fname0,fname1)
while count < len1(fname1):        
    elnum0(count)
    elnum1(count)
    count=count+1