finding a file name from a substring
===

I have a list of my filenames that I've saved as follows:

    filelist = os.listdir(mypath)

Now, suppose one of my files is something like "KRAS_P01446_3GFT_SOMETHING_SOMETHING.txt". However, all I know ahead of time is that I have a file called "KRAS_P01446_3GFT_*". How can I get the full file name from file list using just "KRAS_P01446_3GFT_*"?

As a simpler example, I've made the following:

    mylist = ["hi_there", "bye_there","hello_there"]

Suppose I had the string "hi". How would I make it return mylist[0] = "hi_there".

Thanks!

