Merge pull request #270 from william-andre/io-wrapper-delegation

Delegate unknown attrs to target in WrappingIO

Author: wolph

progressbar/utils.py

@@ -199,8 +199,8 @@ def __init__(self, target: types.IO, capturing: bool = False,
         self.listeners = listeners or set()
         self.needs_clear = False
 
-    def isatty(self):  # pragma: no cover
-        return self.target.isatty()
+    def __getattr__(self, name):  # pragma: no cover
+        return getattr(self.target, name)
 
     def write(self, value: str) -> None:
         if self.capturing: