Wildcards do fail if empty

[piroux]

I am no expert but it seems that gnu coreutils commands do fail when are passed a wildcard which matched nothing.

In the arguments docs, you wrote :

This is supported by setting required=True. However, this should not be used if you can avoid it as we believe scripts should gracefully degrade into becoming noops if a variadic argument is empty. The reason for this is that very often, scripts are invoked with wildcard inputs from the commandline and they should not error out if the wildcard is empty.

But in bash, we have :

[piroux@localhost taratata]$ ls -l
total 0
[piroux@localhost taratata]$ find *
find: ‘*’: No such file or directory
[piroux@localhost taratata]$ ls *
ls: cannot access *: No such file or directory
[piroux@localhost taratata]$ tree *
* [error opening dir]
0 directories, 0 files
[piroux@localhost taratata]$ grep hello *
grep: *: No such file or directory
[piroux@localhost taratata]$ cat *
cat: *: No such file or directory

[mitsuhiko]

As I said, I do believe scripts should become noops :)