mirror of https://github.com/python/cpython
80 lines
1.9 KiB
Python
80 lines
1.9 KiB
Python
# Format and print Python stack traces
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import linecache
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import string
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import sys
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def print_tb(tb, limit = None):
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if limit is None:
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if hasattr(sys, 'tracebacklimit'):
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limit = sys.tracebacklimit
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n = 0
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while tb is not None and (limit is None or n < limit):
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f = tb.tb_frame
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lineno = tb.tb_lineno
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co = f.f_code
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filename = co.co_filename
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name = co.co_name
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print ' File "%s", line %d, in %s' % (filename, lineno, name)
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line = linecache.getline(filename, lineno)
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if line: print ' ' + string.strip(line)
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tb = tb.tb_next
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n = n+1
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def extract_tb(tb, limit = None):
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if limit is None:
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if hasattr(sys, 'tracebacklimit'):
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limit = sys.tracebacklimit
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list = []
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n = 0
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while tb is not None and (limit is None or n < limit):
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f = tb.tb_frame
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lineno = tb.tb_lineno
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co = f.f_code
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filename = co.co_filename
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name = co.co_name
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line = linecache.getline(filename, lineno)
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if line: line = string.strip(line)
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else: line = None
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list.append(filename, lineno, name, line)
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tb = tb.tb_next
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n = n+1
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return list
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def print_exception(type, value, tb, limit = None):
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if tb:
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print 'Traceback (innermost last):'
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print_tb(tb, limit)
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if value is None:
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print type
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else:
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if type is SyntaxError:
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try:
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msg, (filename, lineno, offset, line) = value
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except:
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pass
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else:
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if not filename: filename = "<string>"
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print ' File "%s", line %d' % (filename, lineno)
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i = 0
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while i < len(line) and line[i] in string.whitespace:
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i = i+1
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s = ' '
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print s + string.strip(line)
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for c in line[i:offset-1]:
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if c in string.whitespace:
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s = s + c
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else:
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s = s + ' '
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print s + '^'
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value = msg
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print '%s: %s' % (type, value)
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def print_exc(limit = None):
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print_exception(sys.exc_type, sys.exc_value, sys.exc_traceback,
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limit)
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def print_last(limit = None):
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print_exception(sys.last_type, sys.last_value, sys.last_traceback,
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limit)
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