Explicitly specify the encoding parameter value of `calendar.HTMLCalendar` as 'utf-8'

[Wulian233]

Feature or enhancement

Proposal:

Currently, the calendar.HTMLCalendar.formatyearpage method is used to generate an html of a calendar. encoding parameter defaults to the sys.getdefaultencoding(), but it always returns "utf-8". (PEP 686 – Making UTF-8 Mode default ) I propose changing this default to 'utf-8', this makes it clearer

In a similar vein, the difflib.HtmlDiff also outputs HTML with UTF-8 encoding by default.

Linked PRs

• gh-135001: Explicitly specify the encoding parameter value of calendar.HTMLCalendar as 'utf-8' #135002