|
|
# encoding: utf-8
|
|
|
"""
|
|
|
Utilities for warnings. Shoudn't we just use the built in warnings module.
|
|
|
"""
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Copyright (C) 2008-2009 The IPython Development Team
|
|
|
#
|
|
|
# Distributed under the terms of the BSD License. The full license is in
|
|
|
# the file COPYING, distributed as part of this software.
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Imports
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
import sys
|
|
|
|
|
|
from IPython.utils import io
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Code
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
def warn(msg,level=2,exit_val=1):
|
|
|
"""Standard warning printer. Gives formatting consistency.
|
|
|
|
|
|
Output is sent to io.stderr (sys.stderr by default).
|
|
|
|
|
|
Options:
|
|
|
|
|
|
-level(2): allows finer control:
|
|
|
0 -> Do nothing, dummy function.
|
|
|
1 -> Print message.
|
|
|
2 -> Print 'WARNING:' + message. (Default level).
|
|
|
3 -> Print 'ERROR:' + message.
|
|
|
4 -> Print 'FATAL ERROR:' + message and trigger a sys.exit(exit_val).
|
|
|
|
|
|
-exit_val (1): exit value returned by sys.exit() for a level 4
|
|
|
warning. Ignored for all other levels."""
|
|
|
|
|
|
if level>0:
|
|
|
header = ['','','WARNING: ','ERROR: ','FATAL ERROR: ']
|
|
|
io.stderr.write('%s%s' % (header[level],msg))
|
|
|
if level == 4:
|
|
|
print >> io.stderr,'Exiting.\n'
|
|
|
sys.exit(exit_val)
|
|
|
|
|
|
|
|
|
def info(msg):
|
|
|
"""Equivalent to warn(msg,level=1)."""
|
|
|
|
|
|
warn(msg,level=1)
|
|
|
|
|
|
|
|
|
def error(msg):
|
|
|
"""Equivalent to warn(msg,level=3)."""
|
|
|
|
|
|
warn(msg,level=3)
|
|
|
|
|
|
|
|
|
def fatal(msg,exit_val=1):
|
|
|
"""Equivalent to warn(msg,exit_val=exit_val,level=4)."""
|
|
|
|
|
|
warn(msg,exit_val=exit_val,level=4)
|
|
|
|
|
|
|
