Illustrative Programs – Files, Modules, Package

import sys
file=open(sys.argv[1],"r+")
wordcount={}
for word in file.read().split():
    if word not in wordcount:
        wordcount[word] = 1
    else:
        wordcount[word] += 1
file.close()
print ('Words in the File' , 'Count')
for key in wordcount.keys():
    print (key , wordcount[key])

sf = open("ipfile.txt","r")
df = open("opfile.txt","w")
while(True):
	nl = sf.readline()
	if nl == "":
		break
	df.write(nl)
print("File Copied")
sf.close()
df.close()