cgitb: remove parentheses when the error is in module

[sblondon]

BPO	33311
Nosy	@serhiy-storchaka, @sblondon
PRs	bpo-33311: Do not display parameters displayed in parentheses for module call #6522 bpo-33311: Do not display parameters displayed in parentheses for module call #6677

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2018-05-09.09:39:56.817>
created_at = <Date 2018-04-18.18:39:52.327>
labels = ['3.8', 'type-feature', 'library']
title = 'cgitb: remove parentheses when the error is in module'
updated_at = <Date 2018-05-09.09:39:56.816>
user = 'https://github.com/sblondon'

bugs.python.org fields:

activity = <Date 2018-05-09.09:39:56.816>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = True
closed_date = <Date 2018-05-09.09:39:56.817>
closer = 'serhiy.storchaka'
components = ['Library (Lib)']
creation = <Date 2018-04-18.18:39:52.327>
creator = 'sblondon'
dependencies = []
files = []
hgrepos = []
issue_num = 33311
keywords = ['patch']
message_count = 2.0
messages = ['315459', '316321']
nosy_count = 2.0
nosy_names = ['serhiy.storchaka', 'sblondon']
pr_nums = ['6522', '6677']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue33311'
versions = ['Python 3.8']

[sblondon]

The cgitb module displays a traceback in text or html.

When a module is called, there are no parameters (displayed as '()'). I
think they are unnecessary and the parentheses should be removed.

### example for the text version ###
$ python3 demo.py
[...]
/home/stephane/src/cgitest/demo.py in <module>()
7 def func1(a, b): ^-- to be removed?
[...]
### end of example ###

It occurs in both text and html versions.

[serhiy-storchaka]

New changeset 8cf4b34 by Serhiy Storchaka (sblondon) in branch 'master':
bpo-33311: Do not display parameters displayed in parentheses for module call. (GH-6677)
8cf4b34