matplotlib · timhoffm · Mar 26, 2019 · Mar 25, 2019
diff --git a/doc/api/next_api_changes/2019-03-26-AL.rst b/doc/api/next_api_changes/2019-03-26-AL.rst
@@ -0,0 +1,8 @@
+Deprecations
+````````````
+
+The ``verbose.fileo`` and ``verbose.level`` rcParams, which have had no effect
+ever since the switch from Matplotlib's old custom Verbose logging to the
+stdlib's `logging` module, are deprecated.
+
+The ``rcsetup.validate_verbose`` function is deprecated.
diff --git a/lib/matplotlib/__init__.py b/lib/matplotlib/__init__.py
@@ -705,6 +705,8 @@ def gen_candidates():
 _deprecated_remain_as_none = {
     'text.latex.unicode': ('3.0',),
     'savefig.frameon': ('3.1',),
+    'verbose.fileo': ('3.1',),
+    'verbose.level': ('3.1',),
 }
 
 
@@ -928,19 +930,6 @@ def _rc_params_in_file(fname, fail_on_error=False):
 
     config = RcParams()
 
-    for key in ('verbose.level', 'verbose.fileo'):
-        if key in rc_temp:
-            val, line, cnt = rc_temp.pop(key)
-            if fail_on_error:
-                config[key] = val  # try to convert to proper type or raise
-            else:
-                try:
-                    config[key] = val  # try to convert to proper type or skip
-                except Exception as msg:
-                    error_details = _error_details_fmt % (cnt, line, fname)
-                    _log.warning('Bad val %r on %s\n\t%s',
-                                 val, error_details, msg)
-
     for key, (val, line, cnt) in rc_temp.items():
         if key in defaultParams:
             if fail_on_error:

diff --git a/lib/matplotlib/mpl-data/stylelib/_classic_test.mplstyle b/lib/matplotlib/mpl-data/stylelib/_classic_test.mplstyle
@@ -448,27 +448,6 @@ svg.fonttype : path            # How to handle SVG fonts:
 #    'none': Assume fonts are installed on the machine where the SVG will be viewed.
 #    'path': Embed characters as paths -- supported by most SVG renderers
 
-
-# Set the verbose flags.  This controls how much information
-# matplotlib gives you at runtime and where it goes.  The verbosity
-# levels are: silent, helpful, debug, debug-annoying.  Any level is
-# inclusive of all the levels below it.  If your setting is "debug",
-# you'll get all the debug and helpful messages.  When submitting
-# problems to the mailing-list, please set verbose to "helpful" or "debug"
-# and paste the output into your report.
-#
-# The "fileo" gives the destination for any calls to verbose.report.
-# These objects can a filename, or a filehandle like sys.stdout.
-#
-# You can override the rc default verbosity from the command line by
-# giving the flags --verbose-LEVEL where LEVEL is one of the legal
-# levels, e.g., --verbose-helpful.
-#
-# You can access the verbose instance in your code
-#   from matplotlib import verbose.
-verbose.level  : silent      # one of silent, helpful, debug, debug-annoying
-verbose.fileo  : sys.stdout  # a log filename, sys.stdout or sys.stderr
-
 # Event keys to interact with figures/plots via keyboard.
 # Customize these settings according to your needs.
 # Leave the field(s) empty if you don't need a key-map. (i.e., fullscreen : '')

diff --git a/lib/matplotlib/mpl-data/stylelib/classic.mplstyle b/lib/matplotlib/mpl-data/stylelib/classic.mplstyle
@@ -452,27 +452,6 @@ svg.fonttype : path            # How to handle SVG fonts:
 #    'none': Assume fonts are installed on the machine where the SVG will be viewed.
 #    'path': Embed characters as paths -- supported by most SVG renderers
 
-
-# Set the verbose flags.  This controls how much information
-# matplotlib gives you at runtime and where it goes.  The verbosity
-# levels are: silent, helpful, debug, debug-annoying.  Any level is
-# inclusive of all the levels below it.  If your setting is "debug",
-# you'll get all the debug and helpful messages.  When submitting
-# problems to the mailing-list, please set verbose to "helpful" or "debug"
-# and paste the output into your report.
-#
-# The "fileo" gives the destination for any calls to verbose.report.
-# These objects can a filename, or a filehandle like sys.stdout.
-#
-# You can override the rc default verbosity from the command line by
-# giving the flags --verbose-LEVEL where LEVEL is one of the legal
-# levels, e.g., --verbose-helpful.
-#
-# You can access the verbose instance in your code
-#   from matplotlib import verbose.
-verbose.level  : silent      # one of silent, helpful, debug, debug-annoying
-verbose.fileo  : sys.stdout  # a log filename, sys.stdout or sys.stderr
-
 # Event keys to interact with figures/plots via keyboard.
 # Customize these settings according to your needs.
 # Leave the field(s) empty if you don't need a key-map. (i.e., fullscreen : '')

diff --git a/lib/matplotlib/rcsetup.py b/lib/matplotlib/rcsetup.py
@@ -472,15 +472,22 @@ def validate_font_properties(s):
 validate_mathtext_default = ValidateInStrings(
     'default',
     "rm cal it tt sf bf default bb frak circled scr regular".split())
-validate_verbose = ValidateInStrings(
-    'verbose',
-    ['silent', 'helpful', 'debug', 'debug-annoying'])
 _validate_alignment = ValidateInStrings(
     'alignment',
     ['center', 'top', 'bottom', 'baseline',
      'center_baseline'])
 
 
+_validate_verbose = ValidateInStrings(
+    'verbose',
+    ['silent', 'helpful', 'debug', 'debug-annoying'])
+
+
+@cbook.deprecated("3.1")
+def validate_verbose(s):
+    return _validate_verbose(s)
+
+
 def validate_whiskers(s):
     if s == 'range':
         return 'range'
@@ -1006,7 +1013,7 @@ def _validate_linestyle(ls):
     'timezone':          ['UTC', validate_string],
 
     # the verbosity setting
-    'verbose.level': ['silent', validate_verbose],
+    'verbose.level': ['silent', _validate_verbose],
     'verbose.fileo': ['sys.stdout', validate_string],
 
     # line props