#Dont know if this has been done #a lot before, but I #got inspired from the web site #http://p-nand-q.com/python/stupid_lambda_tricks.html #and tried to write a lambda that #is a complete program, except for #the import. #Sure a lot of fun to write. # import sys #For the write function #All variables are inside of the lambda # (lambda dbg=1, n=(lambda:0): #start main lambda body ( #List of characters that we filter out #of user input setattr(n, 'letrs', ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '.', ',', ';', ':', '*', '-', '_', '#', '@', '$', '%', '^', '&', '(', ')', '{', '}', '[', ']', '+', '=', '<', '>', '/', '?', ' ' ]), #make functions n.prit, n.fac, etc. #Use write function from p-nand-q.com web site setattr(n, 'prit', lambda *s: sys.stdout.write(' '.join(map(str, s) + ['\n'] ))), setattr(n, 'fac', lambda m, ak: ((m < 1 and [ak]) or [n.fac(m-1, m*ak)] )[0]), #Variable to test whether we get out of loop setattr(n, 'outvr', 1), #Use list comprehension to loop thru tuple #until input is 0, or preset number of #times thru the loop [( #Get user input setattr(n, 'b', raw_input('Enter a number: ')), #Filter out letters from string setattr(n, 'c', [i for i in n.b if not i in n.letrs]), #Join list back to string setattr(n, 'dt', ''.join(n.c)), #Check if we get the empty string setattr(n, 'd', (n.dt == '' and '0' or n.dt)), #For debug (dbg and n.prit('n.d:',n.d)), #If len of string is 0, return 1, else return int of string setattr(n, 'e', ( len(n.d) <= 0 and 0 or int(n.d))), #Set variable to see if we get out of loop setattr(n, 'outvr', n.e), #For debug (dbg and n.prit('n.outvr:', n.outvr)), #Find factorial setattr(n, 'f', n.fac(n.e, 1)), n.prit('Factorial of', n.e, 'is:', n.f), #Make lists of factorials setattr(n, 'faclis', [(i, n.fac(i,1)) for i in range(n.e+1)] ), #print lists of facs n.prit('Fac list:', n.faclis), ) for j in range(100) if n.outvr > 0 ] #end loop )#end main lambda )(dbg=0) #Call lambda program