[file_utils] unln: improve warn() and error()
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@ -50,21 +50,25 @@ def verbose(*message, **args):
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if options["verbose"]:
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if options["verbose"]:
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print(*message, **args)
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print(*message, **args)
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def warn(*message, prefix="Warning:", **args):
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def warn(*message, prefix="Warning!", **args):
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"""Prints the message on the error output, prepended by 'prefix'.
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"""Prints the message on the error output, prepended by 'prefix'.
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The standard output is flushed prior to printing the error message, to
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enable the messages to be displayed in the right order.
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This function is a simple wrapper around print(), and you can use any
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This function is a simple wrapper around print(), and you can use any
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keyword argument you would use with print().
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keyword argument you would use with print().
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"""
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"""
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sys.stdout.flush()
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print(prefix, *message, file=sys.stderr, **args)
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print(prefix, *message, file=sys.stderr, **args)
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def error(error_code, *message, **args):
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def error(error_code, *message, **args):
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"""Prints the message on the error output and exits.
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"""Prints the message on the error output and exits with 'error_code'.
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This function is a simple wrapper around print(), and you can use any
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This function is a simple wrapper around warn(), and you can use any
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keyword argument you would use with print().
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keyword argument you would use with warn() or print().
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"""
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"""
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print(*message, file=sys.stderr, **args)
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warn(*message, prefix="", **args)
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sys.exit(error_code)
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sys.exit(error_code)
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def quote(string):
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def quote(string):
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@ -81,7 +85,7 @@ options = {
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progname = os.path.basename(sys.argv[0])
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progname = os.path.basename(sys.argv[0])
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# Short usage string
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# Short usage string
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usage_string = "Usage:\n\t{} <file1> [file2 ...]\n".format(progname)
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usage_string = "Usage:\n\t{} <file1> [file2 ...]".format(progname)
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# Error codes
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# Error codes
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ERR_BAD_USAGE = 1
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ERR_BAD_USAGE = 1
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