f = open("test.txt", 'r')
variable = f.readline(1)
print(variable)
""" Read only the first line of a file """
with open('file.txt') as f:
first_line = f.readline()
print(first_line)
""" or """
f = open ('file.txt', 'r')
first_line = f.readline()
print (first_line)
with open('myfile.txt') as f:
first_line = f.readline()
with open("datafile") as myfile:
head = [next(myfile) for x in range(N)]
print(head)