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python: show warnings for deprecated functions

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Emit a DeprecationWarning warning when a deprecated function is used, so
users have a way to know that they are using one.
This commit is contained in:
Pino Toscano
2019-04-23 14:51:49 +02:00
parent d8d8c856a1
commit cf865444a8
1 changed files with 12 additions and 0 deletions
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12
generator/python.ml
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@@ -910,6 +910,18 @@ class GuestFS(object):
pr " %s = %s.c_pointer()\n" n n
) args;
pr " self._check_not_closed()\n";
(match f.deprecated_by with
| Not_deprecated -> ()
| Replaced_by alt ->
pr " import warnings\n";
pr " warnings.warn(\"use GuestFS.%s() \"\n" alt;
pr " \"instead of GuestFS.%s()\",\n" f.name;
pr " DeprecationWarning, stacklevel=2)\n";
| Deprecated_no_replacement ->
pr " import warnings\n";
pr " warnings.warn(\"do not use GuestFS.%s()\",\n" f.name;
pr " DeprecationWarning, stacklevel=2)\n";
);
let function_string =
"self._o" ^
map_join (fun arg -> sprintf ", %s" (name_of_argt arg))