Python- File Handling Examples
>>>fdesc= open(“data.txt”,”w”) #will create data.txt
>>>fdesc
>.>> for count in range(0,100)# to write 1 to 100 in file
>>>. fdesc.write(str(count)+”\n”)
>>> fdesc.close()
>>> Cat data.txt
Now to append 100 to 199
>>>fdesc= open(“data.txt”,”a”)
>>>fdesc
>.>> for count in range(100,200)# to append100 to 200 in file
>>>. fdesc.write(str(count)+”\n”)
>>> fdesc.close()
>>> Cat data.txt
To read data from file
>>>fdesc = open(“data.txt”)
>>> for line in fdesc.readlines():
>>>. Print line.strip() # strip adds \n
>>> fdesc.close()
filehandling.py
#!/usr/bin/python
fdesc=open("data.txt","r")
#fdesc.write("world")
print fdesc.read()
fdesc.close()
Replace, rename
>>> Import. os
>>> os.rename(“data.txt”,”record.txt”)
>>>ls #To check at command promt
Filehandling.py
#!/usr/bin/python
import os
os.rename("data.txt","test2.txt")
Try os.delete()
os MORE FUNCTIONS IN aSSIGNMENT
