Re-enable set_user_value() warning for symbols with no prompts.

Disable warnings in allnoconfig_simpler.py instead.

3 files changed, 20 insertions, 11 deletions

diff --git a/examples/allnoconfig_simpler.py b/examples/allnoconfig_simpler.py
index affa004..f8f2a2c 100644
--- a/examples/allnoconfig_simpler.py
+++ b/examples/allnoconfig_simpler.py
@@ -16,6 +16,11 @@ import sys
 
 conf = kconfiglib.Config(sys.argv[1])
 
+# Avoid warnings printed by Kconfiglib when assigning a user value with
+# set_user_value() to a symbol that has no prompt (such assignments never have
+# an effect)
+conf.set_print_warnings(False)
+
 for sym in conf:
     if sym.get_type() in (kconfiglib.BOOL, kconfiglib.TRISTATE):
         sym.set_user_value("n")
diff --git a/kconfiglib.py b/kconfiglib.py
index 17afc7d..6d9f420 100644
--- a/kconfiglib.py
+++ b/kconfiglib.py
@@ -2214,7 +2214,7 @@ class _HasVisibility():
 
     """Base class for elements that have a "visibility" that acts as an upper
     limit on the values a user can set for them. Subclasses are Symbol and
-    Choice."""
+    Choice (which supply some of the attributes)."""
 
     def __init__(self):
         self.cached_visibility = None
@@ -2857,9 +2857,11 @@ class Symbol(Item, _HasVisibility):
         """Like set_user_value(), but does not invalidate any symbols.
 
         suppress_load_warnings --
-          some warnings don't make sense when loading a .config that do make
-          sense when manually invoking set_user_value(). This flag is set to True to
-          suppress such warnings."""
+          some warnings are annoying when loading a .config that can be helpful
+          when manually invoking set_user_value(). This flag is set to True to
+          suppress such warnings.
+
+          Perhaps this could be made optional for load_config() instead."""
 
         if self.is_special_:
             if self.is_from_env:
@@ -2900,11 +2902,11 @@ class Symbol(Item, _HasVisibility):
 
         # This warning is annoying when running allnoconfig_simpler.py. Make it
         # optional?
-        #if self.prompts == [] and not suppress_load_warnings:
-            #self.config._warn('assigning "{0}" to the symbol {1} which lacks '
-                              #'prompts and thus has visibility "n". The assignment '
-                              #'will have no effect.'
-                              #.format(v, self.name))
+        if self.prompts == [] and not suppress_load_warnings:
+            self.config._warn('assigning "{0}" to the symbol {1} which lacks '
+                              'prompts and thus has visibility "n". The assignment '
+                              'will have no effect.'
+                              .format(v, self.name))
 
         self.user_val = v
 
diff --git a/kconfigtest.py b/kconfigtest.py
index 7927484..e0fae52 100644
--- a/kconfigtest.py
+++ b/kconfigtest.py
@@ -541,6 +541,10 @@ def run_selftests():
 
     print "Testing get_user_value()..."
 
+    # Avoid warnings from assigning invalid user values and assigning user
+    # values to symbols without prompts
+    c.set_print_warnings(False)
+
     syms = [c[name] for name in \
       ("BOOL", "TRISTATE", "STRING", "INT", "HEX")]
     b, t, s, i, h = syms
@@ -571,8 +575,6 @@ def run_selftests():
     # Assign invalid values for the types. They should retain their old user
     # value.
 
-    c.set_print_warnings(False)
-
     assign_and_verify_new_user_value(b, "m", "y")
     assign_and_verify_new_user_value(b, "foo", "y")
     assign_and_verify_new_user_value(b, "1", "y")