writable()

writable()

In file read mode ( r )

fob=open('data1.txt','r')
print(fob.writable()) # False

Using write mode

fob=open('data1.txt','w')
print(fob.writable()) # True

Using append mode

fob=open('data1.txt','a')
print(fob.writable()) # True

Using read and write

fob=open('data1.txt','+a')
print(fob.writable()) # True