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quick beginner questions

 
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quick beginner questions, ask away, everyone
j0nj0n
post 12 Sep, 2008 - 10:01 PM
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Posts: 1
alright, the final project has to be some sort of letter scrambler, keeping the letter ranges in the same word of the sentence.
right now I have 1 raw_input as a, and got a random number between 0 and length of a-1.
I append that to z as a[r], and remove it from a as a[r] so its not chosen again, and make length of a -1, all inside a loop.

a.remove(a[r])
AttributeError: 'str' object has no attribute 'remove'

do i need to make string a into a list/tuple? if so, how so?

--------------------------------------------
to know when a sentence starts or ends, can i do something like if a[x] ==" " inside a loop, record its position with x, and place it in that same position in the final producT?
How would i go around to later place each" " at their positions in z?(z is a [])
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Stutzbach
post 13 Sep, 2008 - 06:10 AM
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QUOTE(j0nj0n @ 13 Sep, 2008 - 12:01 AM) *

do i need to make string a into a list/tuple? if so, how so?


"a_list = list(a)" will convert a string to a list, but see below for another approach that may be helpful.

QUOTE(j0nj0n @ 13 Sep, 2008 - 12:01 AM) *

to know when a sentence starts or ends, can i do something like if a[x] ==" " inside a loop, record its position with x, and place it in that same position in the final producT?
How would i go around to later place each" " at their positions in z?(z is a [])


Check out the .split() and .join() methods for strings. I think you will find them very helpful.

word_list = a.split()
s = ' '.join(word_list)
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james_L
post 4 Oct, 2008 - 01:29 AM
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ph34r.gif okay I'm VERY new to python and i'm still in the dark but I have been able to make some basic programs, i stumbled across this code and i was wondering how to use uppercase and lowercase characters to make a decision in a program.....

CODE

# Area calculation program

print “Welcome to the Area calculation program”
print “–––––––––––––”
print

# Print out the menu:
print “Please select a shape:”
print “1.  Rectangle”
print “2.  Circle”

# Get the user’s choice:
shape = input(“> “)

# Calculate the area:
if shape == 1
    height = input(“Please enter the height: “)
    width = input(“Please enter the width: “)
    area = height*width
    print “The area is”, area
else:
    radius = input(“Please enter the radius: “)
    area = 3.14*(radius**2)
    print “The area is”, area


okay i tried doing this
CODE

# Area calculation program

print “Welcome to the Area calculation program”
print “–––––––––––––”
print

# Print out the menu:
print “Please select a shape:”
print “<a>  Rectangle”
print “<b>  Circle”

# Get the user’s choice:
shape = input(“> “)

# Calculate the area:
if shape == a || shape == A   #<========= here's my problem
    height = input(“Please enter the height: “)
    width = input(“Please enter the width: “)
    area = height*width
    print “The area is”, area
else:
    radius = input(“Please enter the radius: “)
    area = 3.14*(radius**2)
    print “The area is”, area


and obviously ran to an error i was guessing......

This post has been edited by james_L: 4 Oct, 2008 - 01:31 AM
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james_L
post 4 Oct, 2008 - 03:27 AM
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okay never mind the previous question I'm trying to loop my program but i've been unsuccessful at it ...... please help what can i do?

CODE

print "Area Calculation"
print "-----------"
print


print "please select a shape"
print "1  Rectangle"
print "2  Circle"

shape = input (">")
  



if shape ==  1:

    width = input ("enter width = ")
    height = input ("enter height = ")
    area = width*height
    print "this is the area of the Rectangle = ",area
    print
    choice = input ("Try again? <1> yes <2> no >>")

elif shape == 2:
    radius = input("please enter radius: ")
    area = 3.14*(radius**2)
    print "the area is", area
    print
    choice = input ("Try again? <1> yes <2> no >>")

else:
    print "invalid selection!"
    print
    choice = input ("Try again? <1> yes <2> no >>")

while choice != 2:

    if choice == 1:
        shape = input("select shape <1> rectangle <2> circle")

    elif  choice == 2:
        print "good-bye!"
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james_L
post 4 Oct, 2008 - 03:51 AM
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Joined: 28 Aug, 2008
Posts: 13


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icon_up.gif biggrin.gif I've got it! thanks anyway!

CODE



choice = 0

while choice != 2:

    print
    print "Area Calculation"
    print "-----------"
    print


    print "please select a shape"
    print "1  Rectangle"
    print "2  Circle"

    shape = input (">")
  



    if shape ==  1:

        width = input ("enter width = ")
        height = input ("enter height = ")
        area = width*height
        print "this is the area of the Rectangle = ",area
        print
        choice = input ("Try again? <1> yes <2> no >>")

    elif shape == 2:
        radius = input("please enter radius: ")
        area = 3.14*(radius**2)
        print "the area is", area
        print
        choice = input ("Try again? <1> yes <2> no >>")

    else:
        print "invalid selection!"
        print
        choice = input ("Try again? <1> yes <2> no >>")



    if  choice == 2:
        print "good-bye!"
    
        


or.....

CODE


choice = True


while choice == True :

    print
    print "Area Calculation"
    print "-----------"
    print


    print "please select a shape"
    print "1  Rectangle"
    print "2  Circle"

    shape = input (">")
  



    if shape ==  1:

        width = input ("enter width = ")
        height = input ("enter height = ")
        area = width*height
        print "this is the area of the Rectangle = ",area
        print
        choice = input ("Try again? <1> yes <2> no >>")

    elif shape == 2:
        radius = input("please enter radius: ")
        area = 3.14*(radius**2)
        print "the area is", area
        print
        choice = input ("Try again? <1> yes <2> no >>")

    else:
        print "invalid selection!"
        print
        choice = input ("Try again? <1> yes <2> no >>")

    if choice == 1:
        choice = True

    elif  choice == 2:
        print "good-bye!"
        choice = False
        
    else:
        print "invalid Selection!"
        choice = True
        











This post has been edited by james_L: 4 Oct, 2008 - 04:49 AM
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