73.
What is the difference between r+ and w+ modes?

75.
What is the output of the following code:
with open('data.txt', 'r') as file:
lines = file.read().splitlines()
print(len(lines))

76.
What is the current syntax of rename() a file?

77.
What will be the output of the following Python code?
fo = open("foo.txt", "wb")
print "Name of the file: ", fo.name
fo.flush()
fo.close()

78.
What is the correct syntax of open() function?