Python File readlines() Method
The method readlines() read until EOF using readline() and return a list containing the lines. If the optional sizehint argument is present, instead of reading up to EOF, whole lines totalling approximately sizehint bytes (possibly after rounding up to an internal buffer size) are read.
Following is the syntax for readlines() method
fileObject.readlines( sizehint );
sizehint -- This is the number of bytes to be read from the file.
This method returns a list containing the lines.
The following example shows the usage of readlines() method.
#!/usr/bin/python # Open a file fo = open("foo.txt", "r") print "Name of the file: ", fo.name # Assuming file has following 5 lines # This is 1st line # This is 2nd line # This is 3rd line # This is 4th line # This is 5th line line = fo.readlines() print "Read Line: %s" % (line) line = fo.readlines(2) print "Read Line: %s" % (line) # Close opend file fo.close()
Let us compile and run the above program, this will produce the following result:
Name of the file: foo.txt Read Line: ['This is 1st line\n', 'This is 2nd line\n', 'This is 3rd line\n', 'This is 4th line\n', 'This is 5th line\n'] Read Line: