Prints a line number and some text. A variable number of positional arguments are allowed. If LN(obj0, obj1, obj2) is called, the text part of the output looks like the output from print obj0, obj1, obj2 The optional keyword "wrap" causes the message to be line-wrapped.
(*args, **kwargs)
| 3 | import traceback, textwrap |
| 4 | |
| 5 | def LN(*args, **kwargs): |
| 6 | """Prints a line number and some text. |
| 7 | |
| 8 | A variable number of positional arguments are allowed. If |
| 9 | LN(obj0, obj1, obj2) |
| 10 | is called, the text part of the output looks like the output from |
| 11 | print obj0, obj1, obj2 |
| 12 | The optional keyword "wrap" causes the message to be line-wrapped. The |
| 13 | argument to "wrap" should be "1" or "True". "name" is another optional |
| 14 | keyword parameter. This is best explained by an example: |
| 15 | from linenum import LN |
| 16 | def fun1(): |
| 17 | print LN('error', 'is', 'here') |
| 18 | def fun2(): |
| 19 | print LN('error', 'is', 'here', name='mess') |
| 20 | fun1() |
| 21 | fun2() |
| 22 | The output is: |
| 23 | L3 fun1: error is here |
| 24 | L5 mess: error is here |
| 25 | """ |
| 26 | stack = traceback.extract_stack() |
| 27 | a, b, c, d = stack[-2] |
| 28 | out = [] |
| 29 | for obj in args: |
| 30 | out.append(str(obj)) |
| 31 | text = ' '.join(out) |
| 32 | if 'name' in kwargs: |
| 33 | text = 'L%s %s: %s' % (b, kwargs['name'], text) |
| 34 | else: |
| 35 | text = 'L%s %s: %s' % (b, c, text) |
| 36 | if 'wrap' in kwargs and kwargs['wrap']: |
| 37 | text = textwrap.fill(text) |
| 38 | return text |
| 39 | |
| 40 | #===================================================== |
| 41 | # LNtest.py |