Merge pull request #3166 from 6syun9/dev_warning

completer turn off warning

news/dev_warning.rst

@@ -0,0 +1,23 @@
+**Added:**
+
+* <news item>
+
+**Changed:**
+
+* turn off warning on completer
+
+**Deprecated:**
+
+* <news item>
+
+**Removed:**
+
+* <news item>
+
+**Fixed:**
+
+* <news item>
+
+**Security:**
+
+* <news item>

xonsh/completers/python.py

@@ -4,6 +4,7 @@ import sys
 import inspect
 import builtins
 import importlib
+import warnings
 import collections.abc as cabc
 
 import xonsh.tools as xt
@@ -184,6 +185,18 @@ def complete_python_mode(prefix, line, start, end, ctx):
     return set(prefix_start + i for i in python_matches)
 
 
+def _turn_off_warning(func):
+    """Decorator to turn off warning temporarily."""
+
+    def wrapper(*args, **kwargs):
+        warnings.filterwarnings("ignore")
+        r = func(*args, **kwargs)
+        warnings.filterwarnings("once", category=DeprecationWarning)
+        return r
+
+    return wrapper
+
+
 def _safe_eval(expr, ctx):
     """Safely tries to evaluate an expression. If this fails, it will return
     a (None, None) tuple.
@@ -202,6 +215,7 @@ def _safe_eval(expr, ctx):
     return val, _ctx
 
 
+@_turn_off_warning
 def attr_complete(prefix, ctx, filter_func):
     """Complete attributes of an object."""
     attrs = set()
@@ -243,6 +257,7 @@ def attr_complete(prefix, ctx, filter_func):
     return attrs
 
 
+@_turn_off_warning
 def python_signature_complete(prefix, line, end, ctx, filter_func):
     """Completes a python function (or other callable) call by completing
     argument and keyword argument names.