Comparison of 2 text files in Python for a particular pattern

I want to compare a text file having some filenames
with another text file that has the list of files but with extentions

For example:

TextFile 1 contains the following text:

filename1
filename2

The file with which I want to compare may have the list of same files but with some extentions.

filename1-abc.ext
filename2-xyz.ext

Now I want to write a code in python that will compare the 1st text file with the second one and tell me whether they exist in the second textfile by ignoring the extensions.