Removing string within string

[fivestar]

I am trying to remove part of a string withing a string. for example if a string is "atgtga" i want the output to be "atg" my if statement is
[inline]'if (x=="tga" or x=="tag" or x=="taa"):
do something
[/inline]

i tried using the .replace("tga","") method but my TA was saying that it only masks that part of the string instead of removing it.

---

i tried a new approach but i am still stuck on the if statement.

[inline]x="atgtgaacttaa"
c=0
q=3
while(q<=len(x)):
x=x[c:q]

if(x=="tga" or x=="taa" or x=="tag"):

c=c+3
q=q+3
print(x)[/inline]

[ichabod801]

I don't know what you're TA is talking about. The replace method replaces. They called the replace method replace because it replaces. Replacing is what the replace method does, so they called it replace. Why would you call the replace method replace if it didn't replace? If the replace method didn't replace, it wouldn't be called replace.

Sorry, Mojo Jojo attack.

Anyway, the only issue I can think of with the replace method that replaces is that it doesn't replace in place. It returns a new string with the replacement replaced, so you need to assign it to something:

x.replace('tga', '') # x does not change
x = x.replace('tga', '') # x is replaced with a string where the replacement is done.

[Skaperen]

learn to tag python code properly on this forum.  if you don't know how, then ask in the Board section before doing any more posting.