--- a/third_party/python/which/which.py
+++ b/third_party/python/which/which.py
@@ -193,17 +193,18 @@ def whichgen(command, path=None, verbose
         for i in range(len(path)):
             dirName = path[i]
             # On windows the dirName *could* be quoted, drop the quotes
             if sys.platform.startswith("win") and len(dirName) >= 2\
                and dirName[0] == '"' and dirName[-1] == '"':
                 dirName = dirName[1:-1]
             for ext in ['']+exts:
                 absName = os.path.abspath(
-                    os.path.normpath(os.path.join(dirName, command+ext)))
+                    os.path.expanduser(
+                    os.path.normpath(os.path.join(dirName, command+ext))))
                 if os.path.isfile(absName):
                     if usingGivenPath:
                         fromWhere = "from given path element %d" % i
                     elif not sys.platform.startswith("win"):
                         fromWhere = "from PATH element %d" % i
                     elif i == 0:
                         fromWhere = "from current directory"
                     else: