add kikimr_configure

1 files changed, 45 insertions, 0 deletions

diff --git a/contrib/python/Automat/py2/automat/_introspection.py b/contrib/python/Automat/py2/automat/_introspection.py
new file mode 100644
index 0000000000..3f7307d8df
--- /dev/null
+++ b/contrib/python/Automat/py2/automat/_introspection.py
@@ -0,0 +1,45 @@
+"""
+Python introspection helpers.
+"""
+
+from types import CodeType as code, FunctionType as function
+
+
+def copycode(template, changes):
+    names = [
+        "argcount", "nlocals", "stacksize", "flags", "code", "consts",
+        "names", "varnames", "filename", "name", "firstlineno", "lnotab",
+        "freevars", "cellvars"
+    ]
+    if hasattr(code, "co_kwonlyargcount"):
+        names.insert(1, "kwonlyargcount")
+    if hasattr(code, "co_posonlyargcount"):
+        # PEP 570 added "positional only arguments"
+        names.insert(1, "posonlyargcount")
+    values = [
+        changes.get(name, getattr(template, "co_" + name))
+        for name in names
+    ]
+    return code(*values)
+
+
+
+def copyfunction(template, funcchanges, codechanges):
+    names = [
+        "globals", "name", "defaults", "closure",
+    ]
+    values = [
+        funcchanges.get(name, getattr(template, "__" + name + "__"))
+        for name in names
+    ]
+    return function(copycode(template.__code__, codechanges), *values)
+
+
+def preserveName(f):
+    """
+    Preserve the name of the given function on the decorated function.
+    """
+    def decorator(decorated):
+        return copyfunction(decorated,
+                            dict(name=f.__name__), dict(name=f.__name__))
+    return decorator