python - Multiple assignments under 'if' statement -

Why can not I make many assignments under an if statement in Python? Do I Remember Any Syntax?

I want to do this:

  files = ["file1", "file2", "file3"] print "\ nThe following files are available: \ n" For file in i = 0 files: i = i + 1 print I, file choice = int (raw_input ("Enter a file number:")) if preferred == 1: file = np .genfromtxt (files [0 ], Usecols = (1,2,3), dtype = (float), delimiter = '\ t') time = np.genfromtxt (files [0], usecols = (0), dtype = (ARR), delimiter = '\ T') Print time  

If the time is defined outside of my statement, then this option does not change as a change ... Or cat? Both the variable file and time should be defined at your block at the high block level.