[issue44438] argparser documentation error
Arman Sargsyan added the comment: I have signed the CLA -- ___ Python tracker <https://bugs.python.org/issue44438> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue44438] argparser documentation error
New submission from Arman Sargsyan :
URL - https://docs.python.org/3/howto/argparse.html
The following code will return a type error:
import argparse
parser = argparse.ArgumentParser()
parser.add_argument("square", help="display a square of a given number")
args = parser.parse_args()
print(args.square**2)
This should be changed to:
import argparse
parser = argparse.ArgumentParser()
parser.add_argument("square", help="display a square of a given number")
args = parser.parse_args()
print(int(args.square)**2)
--
components: Parser
messages: 395963
nosy: arsar7, lys.nikolaou, pablogsal
priority: normal
pull_requests: 25349
severity: normal
status: open
title: argparser documentation error
type: resource usage
versions: Python 3.10, Python 3.11, Python 3.6, Python 3.7, Python 3.8, Python
3.9
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[issue9577] html parser bug related with CDATA sections
New submission from Arman arman.hunan...@gmail.com:
When HTMLParser reaches CDATA element it enters cdata mode by calling
set_cdata_mode (file html/parser.py line 270). this method assigns
self.interesting member new value r'(/|\Z)'. But this is not correct. Consider
following case
script language=javascript
!--
if (window.adgroupid == undefined) {
window.adgroupid = Math.round(Math.random() * 1000);
}
document.write('scr'+'ipt language=javascript1.1
src=http://adserver.adtech.de/addyn|3.0|876|2378574|0|225|ADTECH;loc=100;target=_blank;key=;grp='+window.adgroupid+';misc='+new
Date().getTime()+'/scri'+'pt');
//--
/script
/scri'+'pt matches with r'(/|\Z)' and parser gets confused and produce wrong
results. You can see such real htmls in
www.ahram.org.eg
www.chefkoch.de
www.chemieonline.de
www.eip.gov.eg
www.rezepte.li
www.scienceworld.com
The solution can be to keep
interesting_cdata_script = re.compile(r'(/|\z)script')
interesting_cdata_style = re.compile(r'(/|\z)style')
instead of
interesting_cdata = re.compile(r'(/|\Z)')
and depending on what tag is begins (script or style) set_cdata_mode can assign
correct regexp to self.interesting member.
Please contact with me via email if you need more details.
arman.hunan...@gmail.com
--
components: Library (Lib)
messages: 113688
nosy: Hunanyan
priority: normal
severity: normal
status: open
title: html parser bug related with CDATA sections
type: behavior
versions: Python 3.1
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