Working with Files in Python

# work with files

#open file for write

f=open('c:/TEMP/workpy.txt','w')

print f

f.write("aaaaaaaaaaaaaaaaaaa\n")
f.write("bbbbbbbbbbbbbb");



# work with files

#open file for read

f=open('c:/TEMP/workpy.txt','r')

# line reading

s=f.readline()
print s

f.close()



# work with files

#open file for read

f=open('c:/TEMP/workpy.txt','r')

# pieces reading

s1=f.read(5)
print s1

s2=f.read(19)
print s2

s2=f.read(25)
print s2

f.close()



# work with files

#open file for read

f=open('c:/TEMP/workpy.txt','r')

# pieces reading

s1=f.read(5)
print s1
print f.tell()

s2=f.read(19)
print s2
print f.tell()

s2=f.read(25)
print s2
print f.tell()

f.close()


# work with files

# seek

f=open('c:/TEMP/workpy.txt','r+')

f.write('0123456789abcdef')
f.seek(5)     # Go to the 6th byte in the file
print f.read(1)        

f.seek(-3, 2) # Go to the 3rd byte before the end
print f.read(1)