I'm not able to input my file in Python : I have a document called workbook1.txt on my desktop and I'm not able to open it in python
    i=open('C/Users/rrmenon/Desktop/workbook1.txt', 'r')
    Traceback (most recent call last):
    File "<pyshell#22>", line 1, in <module>
    i=open('C/Users/rrmenon/Desktop/workbook1.txt', 'r')
    IOError: [Errno 2] No such file or directory:      'C/Users/rrmenon/Desktop/workbook1.txt'