[PYTHON 3.3] Need a bit help.

[Blasius]

Its an infinite list atm which starts at number 2, but what i wanna do is cut out every second number after it. So like 2 3 5 7. But i can't figure it out.

def listgenerator(x):   
    x=1
    while x>0:
        x+=1
        print(x)
            
print(listgenerator(1))

 

[danse]

Its an infinite list atm which starts at number 2, but what i wanna do is cut out every second number after it. So like 2 3 5 7. But i can't figure it out.

def listgenerator(x):   
    x=1
    while x>0:
        x+=1
        print(x)
            
print(listgenerator(1))

Since it does look like your homework and rules say that we aren't here to do your homework, I will just give you a tip: modulo

 

[TimeBomb]

We're not here to do your homework for you, buddy. Use search engine, your classmates, and even your professor. Unless of course you were blatantly not listening to what he/she was saying. If that's the case, maybe the class isn't for you.

 

[Blasius]

No, it's not my homework, i don't study programming in school . And i wasn't looking for a solution, i was looking for a tip, thanks danse.

 

[Blasius]

Another question, whats the easiest way to find out if a list contains integers?

 

[danse]

Another question, whats the easiest way to find out if a list contains integers?

Whole thread about it, find the way that suits you most.

You must be registered to see links

 

[Blasius]

Can't use any of those for a list or im just doing it wrong?

x=20
def divider(x):
for variable in range(2, (x-1)):
newx=x/variable
if newx.is_integer():
return True
if newx.is_integer()==False:
return False

i wanted it to divide x in the range of 2 to (x-1) and check if any of the divisions return an integer, but i think it only divides it with the first range item before going to next x(also using x in parent(?)loop)? hope you understand xD

 

[Cure]

If this was for school, I doubt your teacher gave you three days or more too hand it in.
Here you go.


Prints Even Numbers:

def listgenerator():   
    x=1
    while x > 0:
        x+=1
        if x%2==0:
            print (x)
    else:
        return


listgenerator()

Prints Odd Numbers:

def listgenerator():   
    x=1
    while x > 0:
        x+=1
        if x%2!=0:
            print (x)           
    else:
        return


listgenerator()

Next time use Google, I found it in the first result.

 

[Blasius]

Thank you for you answer, but danse already answered it. Problem is i need to check if x%(range(2, x-1))==0, but it doesn't let me use the range command nor list in it. So i don't really understand how to do that (X_X)'.

 

[danse]

Thank you for you answer, but danse already answered it. Problem is i need to check if x%(range(2, x-1))==0, but it doesn't let me use the range command nor list in it. So i don't really understand how to do that (X_X)'.

I think you may have to import Math library into your script, but not sure it's been a while I've used Python and it's not my main language to be honest.

 

[Blasius]

I think you may have to import Math library into your script, but not sure it's been a while I've used Python and it's not my main language to be honest.

didn't help