I'm converting from Perl to Python, so I'm learning the basics -
please be gentle! :)
In Perl, I can lstat($file) whether $file exists or not:
lstat($file);
unless (-e _) {
print STDERR "$file: No such file or directory\n";
}
unless (-l _) {
print STDERR "$file: Not a symbolic link\n";
}
The lstat() returns normally whether the file exists or not, and I
check for existence with the "-e" conditional. Then I go on and check
other modes.
In Python,if I os.lstat(file) and file doesn't exist, I get an error
from within the module:
OSError: [Errno 2] No such file or directory: '/etc/xxx'
I can check first with os.path.exists(file), but then I'm doing two
stat() type calls which is inefficient (especially when we're talking
thousands of files).
I want to be able to do something like this:
mode = os.lstat(file)[ST_MODE]
if not mode:
print >> sys.stderr, file, ": No such file or directory"
if not S_ISLNK(mode):
print >> sys.stderr, file, ": Not a symbolic link"
Of course, this isn't valid. How can I do this efficiently without
getting "no such file" error?
Thanks!
mikebo
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