[Pydev-code] pydev problems?

[hadrien a. <had...@ya...>]

Hi,
I'm a newbie in Python and I'm trying to use the Eclipse IDE for start programming with this language, so I installed the Pydev plugin 1.3.11 on Eclipse 3.3.0.
I prove with this downloaded script example:

import os, sys

seguir=""
nota=0
deci=0
car=1
chon=0
rem=""
inversion=""
er=deci
hex=0
no=""
noe=""
while car==1:
    try:
        option=raw_input("Chose an option:\n  a) Convert a Binary number to Decimal.\n  b) Convert a Decimal number to Binary.\n  c) Convert a Decimal number to Hexadecimal.\nWrite an option: ")
        if option=="a":
            bin=str(raw_input("Write a binary number: "))
            try:
                print int(bin,2), "This is the Decimal"
            except:
                print "This is not binary"
            seguir=raw_input("Continue (s/n): ")
        if option=="b":
            try:
                num=int(raw_input("Write a Decimal number: "))
                while num>0:
                    chon=num%2
                    rem+=str(chon)
                    num/=2
                for caracter in rem:
                    inversion=caracter+inversion
                print inversion, "This is the Binary"
            except:
                print "This is not a Decimal"
            inversion=""
            rem=""
            seguir=raw_input("Continue(s/n): ")
        if option=="c":
            try:
                deci=int(raw_input("Write a Decimal number: "))
                while deci>0:
                    hex=deci%16
                    if hex<10:
                        no=str(hex)
                    if hex==10:
                        no="A"
                    if hex==11:
                        no="B"
                    if hex==12:
                        no="C"
                    if hex==13:
                        no="D"
                    if hex==14:
                        no="E"
                    if hex==15:
                        no="F"
                    noe+=no
                    deci/=16
                for caracter in noe:
                    inversion=caracter+inversion
                print inversion,"This is the Hexadecimal."
                inversion=""
                noe=""
            except:
                print "This is not a decimal number"
            segeuir=raw_input("Continue(s/n): ")
    except:
        print "Invalid option"
        seguir=raw_input("Continue(s/n): ")
    if seguir=="s":
        car=1
    elif seguir=="n":
        print "ENDED"
        car=0
    else:
        print "Invalid option"
            

When I try to run it with Pydev the console doesn't read the letters I write (for the options: a, b, c) so the option is always wrong, but when I run the program with the IDLE, I have no problem and all it's ok. Where is the problem? What can I do?

Thanks!

       
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