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While writing my tests I realized, it would be really useful to make write_file() return the path it wrote to. I need the concatenated filenames most of the time, so I'm getting blocks of:
fn = os.path.join(x,y)
write_file(fn, 'contents')
I'd prefer:
fn = write_file((x,y), 'contents')
Any thoughts? IMHO a write_file that concats path but doesn't return it is only useful in the tree-functions.