Here is traceback.print_tb()'s signature [0]:

```
def print_tb(tb, limit=None, file=None):
```

However, its documentation reads [1]:

```
.. function:: print_tb(traceback, limit=None, file=None)
```

Did the keyword argument change recently, or was this particular doc always wrong?

[0] https://github.com/python/cpython/blob/1fe0fd9feb6a4472a9a1b186502eb9c0b2366326/Lib/traceback.py#L43
[1] https://raw.githubusercontent.com/python/cpython/1fe0fd9feb6a4472a9a1b186502eb9c0b2366326/Doc/library/traceback.rst

According to the history, the parameter was always called “tb” in the implementation <https://hg.python.org/cpython/annotate/93df83022be8/Lib/traceback.py#l7>, and the documentation always had it wrong <https://hg.python.org/cpython/annotate/1c29f6bdd898/Doc/lib/libtraceback.tex#l18>. So I would change the documentation to “tb”.

It looks like other functions in this module have the wrong parameter names also.

I am submitting a patch for this documentation issue. I have changed the function parameters name 'traceback' to 'tb'. Because of this I have also introduced changes in the text of the documentation to maintain coherency.

I found some more inconsistent function parameter's name:

I have changed them :

'type' to 'etype' in functions print_exception, format_exception_only, format_exception

'list' to 'extracted_list' in function format_list
'

New changeset e40f6c3dc114 by Senthil Kumaran in branch '3.5':
Issue26035 - Correct the argument names used in the docs of the traceback module. Make it consistent with module args.
https://hg.python.org/cpython/rev/e40f6c3dc114

New changeset e96c1491896d by Senthil Kumaran in branch 'default':
Merge from 3.5
https://hg.python.org/cpython/rev/e96c1491896d

New changeset daff4ced1b32 by Senthil Kumaran in branch '2.7':
Issue26035 - Correct the argument names used in the docs of the traceback module. Make it consistent with module args.
https://hg.python.org/cpython/rev/daff4ced1b32

Thanks for the patch, Upendra Kumar. It's fixed now. Appreciate your taking care of other args and making the change meaningful.