Change type check to isinstance in pipes (GH-27291) (GH-27416)

(cherry picked from commit 9ffbb899462b819864f777d0228fb8f1bb89b018)

Co-authored-by: Anton Grübel <anton.gruebel@gmail.com>

diff --git a/Lib/pipes.py b/Lib/pipes.py
index f1a16f63de60a0a64c26604644a17bc7500a35f1..8cc74b0f1f781b15a095f33ce0d2bdd88ccfe008 100644 (file)
--- a/Lib/pipes.py
+++ b/Lib/pipes.py
@@ -109,7 +109,7 @@ class Template:
 
     def append(self, cmd, kind):
         """t.append(cmd, kind) adds a new step at the end."""
-        if type(cmd) is not type(''):
+        if not isinstance(cmd, str):
             raise TypeError('Template.append: cmd must be a string')
         if kind not in stepkinds:
             raise ValueError('Template.append: bad kind %r' % (kind,))
@@ -125,7 +125,7 @@ class Template:
 
     def prepend(self, cmd, kind):
         """t.prepend(cmd, kind) adds a new step at the front."""
-        if type(cmd) is not type(''):
+        if not isinstance(cmd, str):
             raise TypeError('Template.prepend: cmd must be a string')
         if kind not in stepkinds:
             raise ValueError('Template.prepend: bad kind %r' % (kind,))