allow None as the b argument

2016-03-07 19:56:27 -08:00 · 2016-03-07 19:56:27 -08:00 · 99d93fb4ce
parent 4fbc08c1be
commit 99d93fb4ce
1 changed files with 1 additions and 1 deletions
--- a/tldp/utils.py
+++ b/tldp/utils.py
@ -85,7 +85,7 @@ def swapdirs(a, b):
    if not os.path.isdir(a):
        raise OSError(errno.ENOENT, os.strerror(errno.ENOENT), a)
    tname = None
-    if os.path.exists(b):
+    if b and os.path.exists(b):
        tdir = mkdtemp(prefix='swapdirs-', dir=opd(opa(a)))
        logger.debug("Created tempdir %s.", tdir)
        tname = opj(tdir, opb(b))