too many values with string.split
I'm trying to unpack a list of 5 floats from a list read from a file and python is telling me 5 variables are too many for the string.split statement. Anyone have any other idea's? NOTE: the only reason I convert it to a float instead of just leaving it as a string in the loop is because I have to have it printed out as a float besides the names and then the average displayed underneath thx #read in data line by line for line in infile: mylist = string.split(line) firstName[counter] = mylist[0] lastName[counter] = mylist[1] grades[counter] = float(mylist[2]) print firstName[counter], lastName[counter],:,\t\t,grades[counter] #increment counter counter = counter + 1 #calculates and prints average score grades = str(grades) num1, num2, num3, num4, num5 = string.split(grades,,) average = float(num1 + num2 + num3 + num4 + num5) / 5 print print Average: -- http://mail.python.org/mailman/listinfo/python-list
Re: too many values with string.split
On Sat, 22 Sep 2007 17:00:47 -0400, Shawn Minisall wrote: I'm trying to unpack a list of 5 floats from a list read from a file and python is telling me 5 variables are too many for the string.split statement. Please post the *real* message which I suspect is something like 'too many values to unpack', which is the other way around. The 5 names are not enough to take all the items from the split. #read in data line by line for line in infile: mylist = string.split(line) Functions in the `string` module that are also available as methods on strings are deprecated. firstName[counter] = mylist[0] lastName[counter] = mylist[1] grades[counter] = float(mylist[2]) print firstName[counter], lastName[counter],:,\t\t,grades[counter] #increment counter counter = counter + 1 Do you really need the counter? Can't you just append the values to the lists? #calculates and prints average score grades = str(grades) num1, num2, num3, num4, num5 = string.split(grades,,) average = float(num1 + num2 + num3 + num4 + num5) / 5 This is very strange. You have a list of floats (I guess), convert that list to a string, split that string at commas, concatenate the *strings* between commas and then try to convert it to a `float`!? This is likely not what you want and should fail in most cases anyway. Ciao, Marc 'BlackJack' Rintsch -- http://mail.python.org/mailman/listinfo/python-list
Re: too many values with string.split
Shawn Minisall a écrit : I'm trying to unpack a list of 5 floats from a list read from a file and python is telling me 5 variables are too many for the string.split statement. Anyone have any other idea's? NOTE: the only reason I convert it to a float instead of just leaving it as a string in the loop is because I have to have it printed out as a float besides the names and then the average displayed underneath thx #read in data line by line for line in infile: mylist = string.split(line) firstName[counter] = mylist[0] lastName[counter] = mylist[1] grades[counter] = float(mylist[2]) print firstName[counter], lastName[counter],:,\t\t,grades[counter] #increment counter counter = counter + 1 #calculates and prints average score grades = str(grades) num1, num2, num3, num4, num5 = string.split(grades,,) average = float(num1 + num2 + num3 + num4 + num5) / 5 print print Average: As I can see, grades is a string that looks like '[12.0,12.0, ...]' So you can't split it just with string.split () Rather than doing grades = str(grades) and split it, you have just to do : avarage = sum (grades) / len (grades) -- http://mail.python.org/mailman/listinfo/python-list
