os.path.exists() for files in your Path?

Question

I commonly use os.path.exists() to check if a file is there before doing anything with it.

I\'ve run across a situation where I\'m calling a executable that

Answer 1

On Unix you have to split the PATH var.

if any([os.path.exists(os.path.join(p,progname)) for p in os.environ["PATH"].split(":")]):
    do_something()