Mercurial > hg > GlobalNeighbors

diff globalneighbors/path.py @ 0:5dba84370182

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initial commit; half-working prototype
author Jeff Hammel <k0scist@gmail.com>
date Sat, 24 Jun 2017 12:03:39 -0700
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/globalneighbors/path.py	Sat Jun 24 12:03:39 2017 -0700
@@ -0,0 +1,12 @@
+"""
+path related utilities
+"""
+
+def ensure_dir(directory):
+    """ensure a directory exists"""
+    if os.path.exists(directory):
+        if not os.path.isdir(directory):
+            raise OSError("Not a directory: '{}'".format(directory))
+        return directory
+    os.makedirs(directory)
+    return directory