P2PU Archive - General discussion

Week 6: Ex 21-24, Due Mar 6

M. Volz — Sun, 27 Feb 2011 19:30:30 +0000

Exercise 21: Functions Can Return Something 53

Exercise 22: What Do You Know So Far? 55

Exercise 23: Read Some Code 57

Exercise 24: More Practice 59

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Exercise 17 Extra Credit

Patrick Burns — Sun, 27 Feb 2011 17:54:49 +0000

Just completed this week's work, everything moving along well. One of the extra credits for exercise 17 has given me some trouble though, specifically #3:

"See how short you can make the script. I could make this 1 line long."

I was able to shorten some of the lines, e.g.:

#input = open(from_file)
#indata = input.read()
#combine to...
indata = open(from_file).read()

#output = open(to_file, 'w')
#output.write(indata)
#combine to...

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Week 5: Ex 17-20, Due Feb 27

M. Volz — Mon, 21 Feb 2011 00:20:07 +0000

Exercise 17: More Files 43

Exercise 18: Names, Variables, Code, Functions 45

Exercise 19: Functions And Variables 49

Exercise 20: Functions And Files 51

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Week 4: Ex 13-16, Due Feb 20

M. Volz — Tue, 15 Feb 2011 20:27:00 +0000

Exercise 13: Parameters, Unpacking, Variables 35

Exercise 14: Prompting And Passing 37

Exercise 15: Reading Files 39

Exercise 16: Reading And Writing Files 41

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Week 3: Ex 9-12, Due Feb 13

M. Volz — Fri, 11 Feb 2011 19:29:51 +0000

Questions/comments about 9-12 here, A.K.A. The Boring Exercises. Don't worry, I read ahead and it gets more interesting!

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exercise 13 argv?

Amene Katanda — Wed, 02 Feb 2011 19:54:58 +0000

Anyone please tell me what argv is about?

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Exercise 13...

Patrick Crosman — Mon, 31 Jan 2011 20:28:37 +0000

Well, I have been having some trouble with running my scripts from the Windows Command Line, I just used IDLE and ran the code. Exercise 13 doesn't let you do this (you have to pass stuff in from other scripts). So I I followed THIS TUTORIAL about adding a path for the windows to be able to see where python is, cause everytime i tried to run python off the CMD it said it was unrecongized. So anyway. Can someone help me do this the right way???

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Learn Python 3 the Hard Way

ZM L — Thu, 27 Jan 2011 09:01:24 +0000

Well, since I'm going through this tutorial with Python 3 instead of Python 2.X. I thought it will be good to share my experience on the differences to take note of as we go through the exercises. I will be updating this post from time to time. Watch this space if you are using Python 3 too.

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Simple function with %f placeholder.

Amene Katanda — Thu, 27 Jan 2011 07:31:30 +0000

# This simple function will format a number into a dollar value with 2 decimals.

def convertDollar(number):
return "$.2%f"%number

>>> convertDollar(100)
$100.00

>>>convertDollar(501.1555)
$501.16

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Exercise 8

Rodrigo Zerbini — Thu, 27 Jan 2011 00:06:36 +0000

Here is my code with commentaries and output for exercise 8.

CODE

# formatter will be our variable with 4 places

formatter = "%r %r %r %r"

# here we call formatter to print 4 numbers

print formatter % (1, 2 , 3, 4)

# here we call formatter to print four words

print formatter % ("one", "two", "three", "four")

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