diff env/lib/python3.9/site-packages/cwltool/flatten.py @ 0:4f3585e2f14b draft default tip

"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/env/lib/python3.9/site-packages/cwltool/flatten.py	Mon Mar 22 18:12:50 2021 +0000
@@ -0,0 +1,25 @@
+from typing import Any, Callable, List, cast
+
+# http://rightfootin.blogspot.com/2006/09/more-on-python-flatten.html
+
+
+def flatten(thing, ltypes=(list, tuple)):
+    # type: (Any, Any) -> List[Any]
+    if thing is None:
+        return []
+    if not isinstance(thing, ltypes):
+        return [thing]
+
+    ltype = type(thing)
+    thing_list = list(thing)
+    i = 0
+    while i < len(thing_list):
+        while isinstance(thing_list[i], ltypes):
+            if not thing_list[i]:
+                thing_list.pop(i)
+                i -= 1
+                break
+            else:
+                thing_list[i : i + 1] = thing_list[i]
+        i += 1
+    return cast(Callable[[Any], List[Any]], ltype)(thing_list)