Re: [Tutor] How to extract a value from a matrix.

dlwdan...@uct.ac.za wrote: Hi there I am a student and is new to python. I would like to know how to exact a value from a list that has been opened from a text file in python. Exactly the same way that you would get a value from any other list. >>> my_list = [10, 20, 30, 40, 50] >>> print my

Re: [Tutor] How to extract a value from a matrix.

On 5/7/2011 8:01 AM, dlwdan...@uct.ac.za wrote: Hi there Hi I am a student and is new to python. Welcome I would like to know how to exact a value from a list that has been opened from a text file in python. Your question is much too vague to give any meaningful answer. Exactly what d

Re: [Tutor] ValueError

On Wed, May 4, 2011 at 3:13 PM, Peter Otten <__pete...@web.de> wrote: > Kushal Kumaran wrote: > >> On Tue, May 3, 2011 at 5:31 PM, Peter Otten <__pete...@web.de> wrote: >>> >>> >>> Also you should make the try...except as narrow as possible >>> >>> try: >>> centimeters = float(centimeters) >>> exc

Re: [Tutor] how to read data

Thanks so much for your detailful information. I spent sometime in learning before. On Sat, May 7, 2011 at 8:17 PM, Wayne Werner wrote: > 2011/5/7 lina >> >> Hi, >> >> As you will see I am a new beginner of learning python, >> >> I met a problem, hope someone can guide me one or two and help me

Re: [Tutor] how to read data

2011/5/7 lina > Hi, > > As you will see I am a new beginner of learning python, > > I met a problem, hope someone can guide me one or two and help me learn. > Have you tried anything yet? Do you know how to read in from a file? Can you go over it line by line? There are several tutorials avail

Re: [Tutor] Need some help

"Aaron Brown" wrote Here is the code I have, and the error. Actually you have a lot of errors! I don't understand the TUPLE problem. As Steven pointed out you cannot assign to a tuple once it has vbeen created. You can only create a new tuple. If you want to change the collection use a l

[Tutor] How to extract a value from a matrix.

Hi there I am a student and is new to python. I would like to know how to exact a value from a list that has been opened from a text file in python. Thanks Danielle Sent from my BlackBerry® wireless device ___ Tutor maillist - Tutor@python.org To u

[Tutor] how to read data

Hi, As you will see I am a new beginner of learning python, I met a problem, hope someone can guide me one or two and help me learn. Here is the issue. "e c #3B3B3B " /* "1.15" */, "f c #343434 " /* "1.19" */, "g c #2E2E2E " /* "1.23" */, "h c #272727 " /* "1.27" */, "i c #212121 " /* "1.

Re: [Tutor] Need some help

Aaron Brown wrote: Here is the code I have, and the error.I don't understand the TUPLE problem. Can someone explain. The error you get is: TypeError: 'tuple' object does not support item assignment This tells you that tuples are immutable (fixed) objects. You cannot do this: >>> t = (1,

[Tutor] Need some help

Here is the code I have, and the error.I don't understand the TUPLE problem. Can someone explain. #Main Program def main(): notGreenCost = (12,float) goneGreenCost = (12, float) savings = (12, float) months = "January ","February","March ","April ","May ","June ","July ","August "