Handling files

Once in a while, we need to work on stored data or store some data from a script. For this purpose, we use file-handling techniques.

Consider the example for handling data storage (as a record) :

getinput=input("Do you want to store a new record (Y/N) ")
#this is to remove any extra spaces
 getinput=getinput.strip()
#this is to convert all input to lower case
 getinput=getinput.lower()
#read values and create a record
 if ("y" in getinput):
   readvaluename=input("Enter the Name: ")
   readvalueage=input("Enter the Age: ")
   readvaluelocation=input("Current location: ")
   tmpvariable=readvaluename+","+readvalueage+","+readvaluelocation+"\n"
### open a file myrecord.csv in write mode, write the record and close it
   fopen=open("myrecord.csv","w")
   fopen.write(tmpvariable)
   fopen.close()

The output is as follows:

>>
 ===== RESTART: C:/gdrive/book2/github/edition2/chapter1/file_handling.py =====
 Do you want to store a new record (Y/N) n
 >>>
 ===== RESTART: C:/gdrive/book2/github/edition2/chapter1/file_handling.py =====
 Do you want to store a new record (Y/N) y
 Enter the Name: abhishek
 Enter the Age: 10
 Current location: US
 >>>

Once this is executed, a myrecord.csv file is created in the same location as the script (as we did not specify a file path):