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+--- Thread: Where did I get it wrong?! (/thread-10020.html)
Where did I get it wrong?! - Tamimi1982 - May-09-2018
Hello Pythoners
In my last assignment I received the following task.
Step 1:
I need to write a code that ask the user to input either 'A' or 'T'. Any other input means the user will receive a notification that their input is invalid and the input message please insert 'A' or 'T' appears again.
step 2:
if the user insert 'A' or 'a' or 't' or 'T', a new input ask the user to insert an integer or 'Q'. The program will keep accumulating the integers inserted until 'q' or 'Q' is inserted. any other input than integer the user will be notified that the input is invalid and it will ask them again to insert an integer or 'Q' Then
Step 3:
if the user inserted A in step 1, the output will show all the inserted integers in separate lines and at the end the total, example:
4
5
Total
9
if the user inserted T in step 2, the output will show the total only, example:
Total
9
Note:
Only these keywords are allowed:
if
elif
while
input
else
def
Now I did not pass the assignment but I still don't know why I keep getting it wrong.
Here is my code:
items = 0
def omode():
mode = input('Please enter "A" or "T" ')
return mode
if omode().isupper() == "T":
items = input('Please input an integer or Q ')
while items.isdigit() == True:
totala = int(items) + int(items)
items = input('Please input an integer or Q ')
if items.isdigit() == False:
if str(items).isupper() == "Q":
print("items \n", totala)
else:
print(items,'is an invalid input')
items = input('Please input an integer ')
elif omode() == "A":
items = input('Please input an integer or Q ')
while items.isdigit() == True:
totala = int(items) + int(items)
items = input('Please input an integer or Q ')
print(items)
if items.isdigit() == False:
if str(items).isupper() == "Q":
print (totala)
else:
print(items,'is an invalid input')
itmes = input('Please input an integer or Q ')
else:
while omode() != "T" or omode() != "A":
print("This is an ivalid input, please insert A or T")
omode()
RE: Where did I get it wrong?! - buran - May-09-2018
The problem is that when user enter something different from 'A', 'T' or 't' (note the difference in your code when it check for 'T' and 'A') it will enter a loop that will continue until user enters 'T' or 'A' and once this is done it will exit the script without doing anything.
You need to do following:
1. Make a loop that will run until user enters 'T' or 'A', otherwise show message then ask for input again.
2. after user entered 'T' or 'A', perform the required action as per the assignment
RE: Where did I get it wrong?! - Tamimi1982 - May-09-2018
(May-09-2018, 11:39 AM)buran Wrote: The problem is that when user enter something different from 'A', 'T' or 't' (note the difference in your code when it check for 'T' and 'A') it will enter a loop that will continue until user enters 'T' or 'A' and once this is done it will exit the script without doing anything.
You need to do following:
1. Make a loop that will run until user enters 'T' or 'A', otherwise show message then ask for input again.
2. after user entered 'T' or 'A', perform the required action as per the assignment
I am trying but I think I am lost between these loops.
RE: Where did I get it wrong?! - buran - May-09-2018
(May-09-2018, 11:50 AM)Tamimi1982 Wrote: I am trying but I think I am lost between these loops.Show us what you have tried? How did you change your code?
RE: Where did I get it wrong?! - Tamimi1982 - May-14-2018
I am still trying and nothing happened. What is wrong?!!!
items = 0
def omode():
mode = input('Please enter "A" or "T" ')
return mode
if omode().isupper() == "T":
items = input('Please input an integer ')
while items.isdigit():
totala = int(items)
totala += totala
items = input('Please input an integer ')
if items.isdigit() == False:
if str(items) == "q" or str(items) == "Q":
print(totala)
else:
print(items,"is an invalid input")
if omode().isupper() == "A":
items = input('Please input an integer ')
while items.isdigit():
totala = int(items)
totala += totala
items = input('Please input an integer')
if items.isdigit() == False:
if str(items) == "q" or str(items) == "Q":
print(totala)
else:
print(items,"is an invalid input")
else:
print("This is an ivalid input")
omode()
RE: Where did I get it wrong?! - Tamimi1982 - May-15-2018
Ok, I think I made some progress. But still I have three problems:
1- The total is wrong. For example, I entered 5 and 9 the total added up to 18 not 14
Please enter "A" or "T" t
Please input an integer or Q 5
Please input an integer or Q 9
Please input an integer or Q q
Total
18
2- When I chose A I can't get it to print each integer on a line, using the example above. I want it to be something like this
items
5
9
Total
14
3- The final issue with a wrong entry. If someone enters other than a or t, how to show a message it is a wrong and restart form the
beginning. Example:
This is an invalid entry
Please input A or T ----> the input dialogue box
and continue.
It seems my else statement at the end stop and I don't know how to tell the program restart from the beginning.
items = 0
def omode():
mode = input('Please enter "A" or "T" ')
return mode
if omode().capitalize() == "T":
items = input('Please input an integer or Q ')
while items.isdigit() == True:
totala = int(items) + int(items)
items = input('Please input an integer or Q ')
if items.isdigit() == False:
if str(items).capitalize() == "Q":
print("items \n", totala)
else:
print(items,'is an invalid input')
items = input('Please input an integer ')
elif omode().capitalize() == "A":
items = input('Please input an integer or Q ')
while items.isdigit() == True:
totala = int(items) + int(items)
items = input('Please input an integer or Q ')
print(items)
if items.isdigit() == False:
if str(items).capitalize() == "Q":
print (totala)
else:
print(items,'is an invalid input')
itmes = input('Please input an integer or Q ')
else:
print("This is an ivalid input, please insert A or T")
omode()