Loops and strings

takachi · #1 25-Dec-2008, 02:11

hello.I'm quite new to the python language and I'm trying to write a simple program which gets a sentence and print the number of digits,vowels,spaces and other chars.I've written a program but it doesn't work.
can you tell me where is the problem and maybe dirrect me to a good tutorial.
this is my code so far:

Python Code:

vowels=other=spaces=digits=0
sentence=raw_input()
for i in len(sentence):
      if sentence[i]=='o':vowels=vowels+1
      elif sentence[i]=='O':vowels=vowels+1
      elif sentence[i]=='a':vowels=vowels+1
      elif sentence[i]=='A':vowels=vowels+1
      elif sentence[i]=='u':vowels=vowels+1
      elif sentence[i]=='U':vowels=vowels+1
      elif sentence[i]=='i':vowels=vowels+1
      elif sentence[i]=='I':vowels=vowels+1
      elif sentence[i]=='e':vowels=vowels+1
      elif sentence[i]=='E':vowels=vowels+1
      elif sentence[i]==' ':spaces=spaces+1
      elif '9'>=sentence[i]>='0':digits=digits+1      
      else:other=other+1
print "vowels= ",vowels
print "spaces: ",spaces
print "digits: ",digits
print "other: ",other

also how can I write an if statement with more than one condition.

davekw7x · #2 25-Dec-2008, 10:08

Quote:

Originally Posted by takachi

hello.I'm quite new to the python language

If you don't have a textbook (or, maybe, even if you do), you might start here: http://docs.python.org/tutorial/

Quote:

Originally Posted by takachi

...how can I write an if statement with more than one condition.

So far, you haven't written an if statement with even one condition.

From the tutorial: "An informal Introduction...->First Steps Towards Programming

"The body of the loop is indented: indentation is Python’s way of grouping statements. "

So:

Python Code:

.
.
.
sentence=raw_input()
for i in range(0,len(sentence)):
    if sentence[i]=='o':
        vowels=vowels+1
    elif sentence[i]=='O':
        vowels=vowels+1
.
.
.

Note the proper form of the "if" statement giving a range as i takes on values from the the value of the first argument up to but not including the value of the second argument.

Regards,

Dave

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Loops and strings

Re: loops and strings