fix: issue2551193 - Fix roundup for removal of cgi and cgitb ... standard python modules (and FieldStorage/MiniFieldStorage). Vendor cgi.py and modify imports. Details: roundup/anypy/cgi_.py import that accesses a working cgi.py. All imports dealing with cgi now use cgi_. roundup/anypy/vendored/cgi.py vendored version 2.6 of cgi.py from: https://pypi.org/project/legacy-cgi/ CHANGES.txt change note added COPYING.txt added license for cgi.py doc/rest.txt change example to use cgi_ doc/upgrading.txt doc removal and how to rework local code using cgi.py. frontends/roundup.cgi remove unneeded cgi import roundup/cgi/actions.py roundup/cgi/apache.py roundup/cgi/client.py roundup/cgi/templating.py roundup/cgi/TAL/TALGenerator.py test/db_test_base.py test/rest_common.py test/test_cgi.py remove import cgi and replace with from roundup.anypy.cgi_ import cgi test/test_actions.py test/test_templating.py modify import to get *FieldStorage test/test_admin.py test/test_hyperdbvals.py test/test_xmlrpc.py remove unneeded cgi import

# Utility for replacing the simple input field for the timezone with
# a select-field that lists the available values.

import cgi

try:
    import pytz
except ImportError:
    pytz = None


def tzfield(prop, name, default):
    if pytz:
        value = prop.plain()        
        if '' == value:
            value = default
        else:
            try:
                value = "Etc/GMT%+d" % int(value)
            except ValueError:
                pass

        l = ['<select name="%s">' % name]
        for zone in pytz.all_timezones:
            s = ' '
            if zone == value:
                s = 'selected=selected '
            z = cgi.escape(zone)
            l.append('<option %svalue="%s">%s</option>' % (s, z, z))
        l.append('</select>')
        return '\n'.join(l)
        
    else:
        return prop.field()

def init(instance):
    instance.registerUtil('tzfield', tzfield)