Binary files in Python

Mode refer to binary data

• w

• b

• +

• a

Mode used for reading and writing in binary file

• wb

• w

• wb+

• w+

Function used to write data in binary format

• write()

• output()

• load()

• dump()

Module used to read and write into binary files

• dump

• load

• pickle

• open

Method used to read data from a binary file

What is the correct way to open the file file_in.txt for reading?

• open('file_in.txt', 'r')

• open('file_in.txt','r+')

• open('file_in.txt','w')

• open('file_in.txt','a')

What is the best way to read an entire file into a list of strings?

• .read()

• .readline()

• .readlines()

• .read(all)

Mode in the following program to open file for writing in a mode where new data will be added at the end of old data

file =open("poem.txt","__")

• r

• a

• w

• x

which function is used to read records from a binary file?

• pickle.load(f)

• pickle.read()

• pickle.open()

• pickle.dump(l,f)