Hello,

I am working on a lab using Python for my CS 200 class and I need some help. We are just learning about loops this week and I struggled with some of the practices so I would like some direction on how to execute the lab correctly. The instructions are listed below:

This program outputs a downwards facing arrow composed of a rectangle and a right triangle. The arrow dimensions are defined by user specified arrow base height, arrow base width, and arrow head width.

(1) Modify the given program to use a loop to output an arrow base of height arrow_base_height. (1 pt)

(2) Modify the given program to use a loop to output an arrow base of width arrow_base_width. (1 pt)

(3) Modify the given program to use a loop to output an arrow head of width arrow_head_width. (2 pts)

(4) Modify the given program to only accept an arrow head width that is larger than the arrow base width. Use a loop to continue prompting the user for an arrow head width until the value is larger than the arrow base width. (1 pt)

I attached the basic code that I need to modify and I would like some direction on implementing the correct method. I am new to programming and if I can see how to begin I know I can complete it on my own. I need to know how and where to add a loop to get the arrow to actually print according to the users input. Can you offer me an example?

 

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I am having problem with my code on zybooks 6.6.1: Parsing Strings, here is the problem:6.6 Warm up: Parsing strings (Python 3)

(1) Prompt the user for a string that contains two strings separated by a comma. (1 pt)

• Examples of strings that can be accepted:Jill, Allen
• Jill , Allen
• Jill,Allen 

Ex:

Enter input string: Jill, Allen

(2) Report an error if the input string does not contain a comma. Continue to prompt until a valid string is entered. Note: If the input contains a comma, then assume that the input also contains two strings. (2 pts) 

Ex:

Enter input string: Jill Allen
Error: No comma in string.
Enter input string: Jill, Allen

(3) Using string splitting, extract the two words from the input string and then remove any spaces. Output the two words. (2 pts) 

Ex:

Enter input string: Jill, Allen
First word: Jill
Second word: Allen

(4) Using a loop, extend the program to handle multiple lines of input. Continue until the user enters q to quit. (2 pts) 

Ex:

Enter input string: Jill, Allen
First word: Jill
Second word: Allen


Enter input string: Golden , Monkey
First word: Golden
Second word: Monkey


Enter input string: Washington,DC
First word: Washington
Second word: DC


Enter input string: q

My code is:

while(True):

  inp_str = input(‘Enter input string: ‘)

  if (inp_str == ‘q’):

    break;

  while(inp_str.find(‘,’) == -1):

    print(‘Error: no comma in string’)

    inp_str = input(‘Enter input string’)

  parts = inp.str.split(‘,’)

  first = parts[0].strip()

  second = parts[1].strip()

  print(‘First word’, first)

  print(‘Second word’, second)

  print(‘n’)

which looks great BUT this is the error I am getting:

Enter input string: Error: no comma in string
Enter input stringError: no comma in string
Enter input stringTraceback (most recent call last):
  File "main.py", line 9, in <module>
    inp_str = input('Enter input string')
EOFError: EOF when reading a line

Any help would be appreciated, also there is an input box: which I have listed inside:

Jill

Allen

 

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