Update logging level names

reference/config_files/conan.conf.rst

@@ -10,7 +10,7 @@ The typical location of the **conan.conf** file is the directory ``~/.conan/``:
     [log]
     run_to_output = True        # environment CONAN_LOG_RUN_TO_OUTPUT
     run_to_file = False         # environment CONAN_LOG_RUN_TO_FILE
-    level = 50                  # environment CONAN_LOGGING_LEVEL
+    level = critical            # environment CONAN_LOGGING_LEVEL
     # trace_file =              # environment CONAN_TRACE_FILE
     print_run_commands = False  # environment CONAN_PRINT_RUN_COMMANDS
 
@@ -89,7 +89,9 @@ Log
 
 The ``level`` variable, defaulted to 50 (critical events), declares the LOG level .
 If you want to show more detailed logging information, set this variable to lower values,
-as 10 to show debug information. You can also adjust the environment variable ``CONAN_LOGGING_LEVEL``.
+as 10 to show debug information, or use the level names as ``critical``, ``error``, ``warning``,
+``info`` and ``debug``. You can also adjust the environment variable ``CONAN_LOGGING_LEVEL``.
+The level number is related to the `Python Logging Levels`_.
 
 The ``print_run_commands``, when is 1, Conan will print the executed commands in ``self.run`` to the output.
 You can also adjust the environment variable CONAN_PRINT_RUN_COMMANDS
@@ -267,3 +269,5 @@ If this fails, you might also try to set environment variables:
    # windows (note, no quotes here)
    $ set HTTP_PROXY=http://10.10.1.10:3128
    $ set HTTPS_PROXY=http://10.10.1.10:1080
+
+.. _`Python Logging Levels`: https://docs.python.org/3/library/logging.html#logging-levels

reference/env_vars.rst

@@ -221,11 +221,28 @@ Can be used with ``CONAN_LOG_RUN_TO_FILE`` set to ``1`` to log only to file and
 CONAN_LOGGING_LEVEL
 -------------------
 
-**Defaulted to**: ``50``
+**Defaulted to**: ``critical``
 
 By default Conan logging level is only set for critical events. If you want
-to show more detailed logging information, set this variable to lower values, as ``10`` to show
-debug information.
+to show more detailed logging information, set this variable according to
+`Python Logging Levels`_ or, use a logging level name:
+
++---------------------+------------------+
+| logging level name  | logging level id |
++=====================+==================+
+| critical            | 50               |
++---------------------+------------------+
+| error               | 40               |
++---------------------+------------------+
+| warning/warn        | 30               |
++---------------------+------------------+
+| info                | 20               |
++---------------------+------------------+
+| debug               | 10               |
++---------------------+------------------+
+
+Both names and IDs are acceptable by environment variable, or using the conan.conf file.
+
 
 .. _env_vars_conan_login_username:
 
@@ -624,3 +641,14 @@ CONAN_SKIP_BROKEN_SYMLINKS_CHECK
 **Defaulted to**: ``False``/``0``
 
 When set to ``True``/``1``, Conan will allow the existence broken symlinks while creating a package.
+
+CONAN_PYLINT_WERR
+-----------------
+
+**Defaulted to**: Not defined
+
+This environment variable changes the PyLint behavior from *warning* level to *error*. Therefore,
+any inconsistency found in the recipe will break the process during linter analysis.
+
+.. _`Python Logging Levels`: https://docs.python.org/3/library/logging.html#logging-levels
+