#🔒 US Population Data Python Project
vernal turret
!paste
tough canopyBOT
vernal turret
line is an int
you can't call strip on it
what are you trying to do there?
nvm I think I see
you should remove the range len part
shy rover
and change it to what
vernal turret
!e
my_lines = ['one\n','two\n']
for line in range(len(my_lines)): print(line)
for line in my_lines: print(line)
:white_check_mark: Your 3.12 eval job has completed with return code 0.
001 | 0
002 | 1
003 | one
004 |
005 | two
I'm assuming you're looking for the second one
shy rover
ok
C:\Users\subha\PycharmProjects\Chapter7ProgrammingExercises.venv\Scripts\python.exe C:\Users\subha\PycharmProjects\Chapter7ProgrammingExercises\us_population_data.py
Traceback (most recent call last):
File "C:\Users\subha\PycharmProjects\Chapter7ProgrammingExercises\us_population_data.py", line 44, in <module>
main()
File "C:\Users\subha\PycharmProjects\Chapter7ProgrammingExercises\us_population_data.py", line 12, in main
total_years = len(us_population)
^^^^^^^^^^^^^^^^^^
TypeError: object of type 'int' has no len()
Process finished with exit code 1
now i am getting this error
when i do that
shy rover
yes
it replaces the , in each number in the file with an empty string meaning removes the commas
vernal turret
it replaces the , in each number in the file with an empty string meaning remove...
it sets the variable to that, and converts it to an int
but you set the same variable over and over in the loop
so it just ends up having the last one in it
maybe you wanted
for i in range(len(us_population)):
us_population[i] = int(line.strip().replace(',',''))
```?that will replace all the lines in that list with their integer counterparts
shy rover
yes ill try that
line would be an unresolved reference then
should i put this inside another for loop that iterates through the lines
shy rover
ok
C:\Users\subha\PycharmProjects\Chapter7ProgrammingExercises.venv\Scripts\python.exe C:\Users\subha\PycharmProjects\Chapter7ProgrammingExercises\us_population_data.py
Traceback (most recent call last):
File "C:\Users\subha\PycharmProjects\Chapter7ProgrammingExercises\us_population_data.py", line 44, in <module>
main()
File "C:\Users\subha\PycharmProjects\Chapter7ProgrammingExercises\us_population_data.py", line 9, in main
us_population[i] = int(us_population[i].strip().replace(',', ''))
~~~~~~~~~~~~~^^^
TypeError: list indices must be integers or slices, not str
Process finished with exit code 1
@vernal turret
vernal turret
maybe you wanted
```py
for i in range(len(us_population)):
us_population[i] = ...
.
I'm assuming you didn't add the range(len(...)) back
do you know what that part is doing?
I think it'd be better to explain than to blindly fix your program for you
shy rover
oh no i accidentally removed it
it iterates through the length of the list
instead of trying to iterate through a whole file and causing errors
vernal turret
yes basically, range generates numbers. when you pass len(something) to it it will generate 0,1,2,3...,len(something)-1
shy rover
i added it back
vernal turret
you're looping over that and using it to index the list
shy rover
and my program works successfully
vernal turret
glad it works 👍
late violet
ur a genius man
tough canopyBOT
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