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📁 X11
📄 [(66.89 KB)
📄 ab(58.42 KB)
📄 addpart(30.31 KB)
📄 apt(18.31 KB)
📄 apt-cache(86.38 KB)
📄 apt-cdrom(22.38 KB)
📄 apt-config(26.31 KB)
📄 apt-get(50.38 KB)
📄 apt-key(27.32 KB)
📄 apt-mark(58.38 KB)
📄 arch(42.86 KB)
📄 awk(154.66 KB)
📄 b2sum(58.98 KB)
📄 base32(46.89 KB)
📄 base64(46.89 KB)
📄 basename(42.83 KB)
📄 basenc(54.89 KB)
📄 bash(1.21 MB)
📄 bashbug(6.7 KB)
📄 bdftopcf(42.45 KB)
📄 bdftruncate(10.22 KB)
📄 busctl(90.5 KB)
📄 c_rehash(6.68 KB)
📄 captoinfo(90.34 KB)
📄 cat(42.98 KB)
📄 certbot(958 B)
📄 chage(78.49 KB)
📄 chardet(221 B)
📄 chardetect(221 B)
📄 chattr(14.24 KB)
📄 chcon(67.11 KB)
📄 checkgid(14.23 KB)
📄 chfn(61.2 KB)
📄 chgrp(67.05 KB)
📄 chmod(62.98 KB)
📄 choom(54.31 KB)
📄 chown(71.05 KB)
📄 chrt(66.31 KB)
📄 chsh(51.64 KB)
📄 cksum(139.05 KB)
📄 clear(14.24 KB)
📄 clear_console(14.15 KB)
📄 cmp(50.95 KB)
📄 comm(46.92 KB)
📄 corelist(15.01 KB)
📄 cp(147.61 KB)
📄 cpan(8.16 KB)
📄 cpan5.36-x86_64-linux-gnu(8.18 KB)
📄 csplit(119.17 KB)
📄 ctstat(26.59 KB)
📄 cut(46.98 KB)
📄 dash(122.7 KB)
📄 date(119.05 KB)
📄 dbus-cleanup-sockets(14.22 KB)
📄 dbus-daemon(238.56 KB)
📄 dbus-monitor(26.23 KB)
📄 dbus-run-session(14.23 KB)
📄 dbus-send(30.22 KB)
📄 dbus-update-activation-environment(14.22 KB)
📄 dbus-uuidgen(14.22 KB)
📄 dd(87.15 KB)
📄 deb-systemd-helper(23.79 KB)
📄 deb-systemd-invoke(6.09 KB)
📄 debconf(2.79 KB)
📄 debconf-apt-progress(11.27 KB)
📄 debconf-communicate(608 B)
📄 debconf-copydb(1.68 KB)
📄 debconf-escape(647 B)
📄 debconf-set-selections(2.92 KB)
📄 debconf-show(1.78 KB)
📄 delpart(30.31 KB)
📄 df(99.8 KB)
📄 dialog(247.85 KB)
📄 diff(151.58 KB)
📄 diff3(67.14 KB)
📄 dir(147.8 KB)
📄 dircolors(50.92 KB)
📄 dirname(38.83 KB)
📄 dmesg(86.58 KB)
📄 dnsdomainname(22.15 KB)
📄 domainname(22.15 KB)
📄 dpkg(310.64 KB)
📄 dpkg-deb(166.52 KB)
📄 dpkg-divert(154.55 KB)
📄 dpkg-maintscript-helper(20.71 KB)
📄 dpkg-query(158.58 KB)
📄 dpkg-realpath(4.09 KB)
📄 dpkg-split(126.48 KB)
📄 dpkg-statoverride(62.33 KB)
📄 dpkg-trigger(86.48 KB)
📄 du(171.33 KB)
📄 dvipdf(1007 B)
📄 echo(42.83 KB)
📄 editor(3.48 MB)
📄 egrep(41 B)
📄 enc2xs(40.96 KB)
📄 encguess(3 KB)
📄 env(47.4 KB)
📄 eps2eps(639 B)
📄 ex(3.48 MB)
📄 expand(42.92 KB)
📄 expiry(30.45 KB)
📄 expr(115.05 KB)
📄 factor(83.2 KB)
📄 faillog(22.53 KB)
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📄 false(34.83 KB)
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📄 fgrep(41 B)
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📄 gpgv(463 KB)
📄 grep(198.39 KB)
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📄 gunzip(2.29 KB)
📄 gzexe(6.3 KB)
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📄 h2xs(59.51 KB)
📄 hardlink(50.39 KB)
📄 head(46.95 KB)
📄 helpztags(2.46 KB)
📄 hostid(38.83 KB)
📄 hostname(22.15 KB)
📄 hostnamectl(30.38 KB)
📄 htcacheclean(34.24 KB)
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📄 htdigest(14.23 KB)
📄 htpasswd(26.23 KB)
📄 i386(26.58 KB)
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📄 id(47.02 KB)
📄 infocmp(62.31 KB)
📄 infotocap(90.34 KB)
📄 install(155.8 KB)
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📄 ip(674.82 KB)
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📄 ischroot(14.32 KB)
📄 join(54.98 KB)
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📄 json_pp(4.88 KB)
📄 kernel-install(12.75 KB)
📄 kill(22.3 KB)
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📄 last(50.31 KB)
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📄 lastlog(31.75 KB)
📄 lcf(7.6 KB)
📄 ld.so(205.96 KB)
📄 ldd(5.28 KB)
📄 letsencrypt(958 B)
📄 libnetcfg(15.41 KB)
📄 link(38.83 KB)
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📄 ln(71.12 KB)
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📄 locale(46.16 KB)
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📄 logger(54.9 KB)
📄 login(51.78 KB)
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📄 logname(38.83 KB)
📄 logresolve(14.24 KB)
📄 ls(147.8 KB)
📄 lsattr(14.24 KB)
📄 lsb_release(2.59 KB)
📄 lsblk(202.31 KB)
📄 lscpu(126.31 KB)
📄 lsfd(120.3 KB)
📄 lsipc(98.31 KB)
📄 lsirq(34.48 KB)
📄 lslocks(70.7 KB)
📄 lslogins(94.31 KB)
📄 lsmem(66.31 KB)
📄 lsns(82.31 KB)
📄 mawk(154.66 KB)
📄 mcookie(34.38 KB)
📄 md5sum(50.95 KB)
📄 md5sum.textutils(50.95 KB)
📄 mesg(18.3 KB)
📄 mkdir(95.27 KB)
📄 mkfifo(67.17 KB)
📄 mkfontdir(65 B)
📄 mkfontscale(39.05 KB)
📄 mknod(71.2 KB)
📄 mktemp(42.92 KB)
📄 more(58.31 KB)
📄 mount(58.3 KB)
📄 mountpoint(18.3 KB)
📄 mv(139.62 KB)
📄 namei(34.31 KB)
📄 nawk(154.66 KB)
📄 netstat(151.66 KB)
📄 networkctl(106.38 KB)
📄 newgrp(47.75 KB)
📄 nice(42.86 KB)
📄 nisdomainname(22.15 KB)
📄 nl(111.11 KB)
📄 nohup(42.89 KB)
📄 normalizer(244 B)
📄 nproc(42.89 KB)
📄 nsenter(34.54 KB)
📄 nstat(104.45 KB)
📄 numfmt(67.02 KB)
📄 od(79.02 KB)
📄 openssl(953.26 KB)
📄 pager(58.31 KB)
📄 paperconf(14.34 KB)
📄 partx(118.31 KB)
📄 passwd(66.65 KB)
📄 paste(42.89 KB)
📄 pathchk(42.86 KB)
📄 pdb3(62.4 KB)
📄 pdb3.11(62.4 KB)
📄 pdf2dsc(698 B)
📄 pdf2ps(909 B)
📄 peekfd(14.5 KB)
📄 perl(3.63 MB)
📄 perl5.36-x86_64-linux-gnu(14.41 KB)
📄 perl5.36.0(3.63 MB)
📄 perlbug(44.12 KB)
📄 perldoc(125 B)
📄 perlivp(10.61 KB)
📄 perlthanks(44.12 KB)
📄 pf2afm(498 B)
📄 pfbtopfa(516 B)
📄 pgrep(34.42 KB)
📄 phar(14.88 KB)
📄 phar.phar(14.88 KB)
📄 phar.phar8.2(14.88 KB)
📄 phar8.2(14.88 KB)
📄 phar8.2.phar(14.88 KB)
📄 php(5.4 MB)
📄 php8.2(5.4 MB)
📄 piconv(8.16 KB)
📄 pidof(26.31 KB)
📄 pidwait(34.42 KB)
📄 pinky(47.05 KB)
📄 pkill(34.42 KB)
📄 pl2pm(4.43 KB)
📄 pldd(22.69 KB)
📄 pmap(34.34 KB)
📄 pod2html(4.04 KB)
📄 pod2man(14.68 KB)
📄 pod2text(10.55 KB)
📄 pod2usage(4.01 KB)
📄 podchecker(3.57 KB)
📄 pphs(404 B)
📄 pr(79.11 KB)
📄 printafm(395 B)
📄 printenv(34.83 KB)
📄 printf(62.92 KB)
📄 prlimit(38.83 KB)
📄 prove(13.34 KB)
📄 prtstat(18.57 KB)
📄 ps(142.93 KB)
📄 ps2ascii(631 B)
📄 ps2epsi(1.23 KB)
📄 ps2pdf(272 B)
📄 ps2pdf12(215 B)
📄 ps2pdf13(215 B)
📄 ps2pdf14(215 B)
📄 ps2pdfwr(1.05 KB)
📄 ps2ps(647 B)
📄 ps2ps2(669 B)
📄 ps2txt(631 B)
📄 pslog(14.45 KB)
📄 pstree(35.78 KB)
📄 pstree.x11(35.78 KB)
📄 ptar(3.48 KB)
📄 ptardiff(2.58 KB)
📄 ptargrep(4.29 KB)
📄 ptx(135.23 KB)
📄 pwd(42.92 KB)
📄 pwdx(14.3 KB)
📄 py3clean(7.63 KB)
📄 py3compile(13 KB)
📄 py3versions(12.52 KB)
📄 pydoc3(79 B)
📄 pydoc3.11(79 B)
📄 pygettext3(23.67 KB)
📄 pygettext3.11(23.67 KB)
📄 python3(6.52 MB)
📄 python3.11(6.52 MB)
📄 rbash(1.21 MB)
📄 rdma(180.6 KB)
📄 readlink(50.89 KB)
📄 realpath(50.92 KB)
📄 rename.ul(22.3 KB)
📄 renice(14.3 KB)
📄 reset(30.24 KB)
📄 resizepart(70.31 KB)
📄 rev(14.3 KB)
📄 rgrep(30 B)
📄 rm(71.05 KB)
📄 rmdir(54.92 KB)
📄 rotatelogs(26.31 KB)
📄 routel(1.62 KB)
📄 rtstat(26.59 KB)
📄 run-parts(26.91 KB)
📄 runcon(42.95 KB)
📄 rview(3.48 MB)
📄 rvim(3.48 MB)
📄 savelog(10.24 KB)
📄 scp(266.63 KB)
📄 script(70.3 KB)
📄 scriptlive(54.3 KB)
📄 scriptreplay(46.3 KB)
📄 sdiff(55.08 KB)
📄 sed(123.46 KB)
📄 select-editor(2.39 KB)
📄 sensible-browser(1.26 KB)
📄 sensible-editor(1.24 KB)
📄 sensible-pager(565 B)
📄 seq(58.92 KB)
📄 setarch(26.58 KB)
📄 setpriv(78.31 KB)
📄 setsid(14.3 KB)
📄 setterm(46.31 KB)
📄 sftp(282.59 KB)
📄 sg(47.75 KB)
📄 sh(122.7 KB)
📄 sha1sum(54.95 KB)
📄 sha224sum(58.95 KB)
📄 sha256sum(58.95 KB)
📄 sha384sum(62.95 KB)
📄 sha512sum(62.95 KB)
📄 shasum(9.75 KB)
📄 shred(63.14 KB)
📄 shuf(58.98 KB)
📄 skill(30.33 KB)
📄 slabtop(22.37 KB)
📄 sleep(42.86 KB)
📄 slogin(1.07 MB)
📄 snice(30.33 KB)
📄 sort(115.68 KB)
📄 splain(18.99 KB)
📄 split(59.55 KB)
📄 ss(189.14 KB)
📄 ssh(1.07 MB)
📄 ssh-add(518.44 KB)
📄 ssh-agent(474.38 KB)
📄 ssh-argv0(1.42 KB)
📄 ssh-copy-id(12.38 KB)
📄 ssh-keygen(646.44 KB)
📄 ssh-keyscan(622.47 KB)
📄 stat(95.2 KB)
📄 stdbuf(58.92 KB)
📄 streamzip(7.75 KB)
📄 stty(83.02 KB)
📄 su(70.31 KB)
📄 sum(50.96 KB)
📄 sync(38.89 KB)
📄 systemctl(1.29 MB)
📄 systemd(90.38 KB)
📄 systemd-analyze(182.61 KB)
📄 systemd-ask-password(18.48 KB)
📄 systemd-cat(18.38 KB)
📄 systemd-cgls(22.48 KB)
📄 systemd-cgtop(38.4 KB)
📄 systemd-creds(42.61 KB)
📄 systemd-cryptenroll(58.6 KB)
📄 systemd-delta(26.38 KB)
📄 systemd-detect-virt(18.37 KB)
📄 systemd-escape(18.37 KB)
📄 systemd-firstboot(50.59 KB)
📄 systemd-id128(22.37 KB)
📄 systemd-inhibit(22.39 KB)
📄 systemd-machine-id-setup(18.48 KB)
📄 systemd-mount(50.59 KB)
📄 systemd-notify(18.38 KB)
📄 systemd-path(18.37 KB)
📄 systemd-repart(150.69 KB)
📄 systemd-run(58.57 KB)
📄 systemd-socket-activate(26.38 KB)
📄 systemd-stdio-bridge(18.38 KB)
📄 systemd-sysext(42.49 KB)
📄 systemd-sysusers(62.68 KB)
📄 systemd-tmpfiles(110.57 KB)
📄 systemd-tty-ask-password-agent(34.38 KB)
📄 systemd-umount(50.59 KB)
📄 tabs(18.23 KB)
📄 tac(111.05 KB)
📄 tail(75.14 KB)
📄 tar(519.52 KB)
📄 taskset(62.31 KB)
📄 tee(42.95 KB)
📄 tempfile(14.18 KB)
📄 test(58.89 KB)
📄 tic(90.34 KB)
📄 timedatectl(42.37 KB)
📄 timeout(47.49 KB)
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📄 toe(22.23 KB)
📄 top(131.58 KB)
📄 touch(107.05 KB)
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📄 true(34.83 KB)
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📄 tty(34.86 KB)
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📄 ucf(40.69 KB)
📄 ucfq(18.91 KB)
📄 ucfr(10.85 KB)
📄 uclampset(62.31 KB)
📄 ucs2any(18.32 KB)
📄 umount(34.3 KB)
📄 uname(42.86 KB)
📄 uncompress(2.29 KB)
📄 unexpand(42.92 KB)
📄 uniq(46.95 KB)
📄 unlink(38.83 KB)
📄 unshare(82.54 KB)
📄 update-alternatives(58.31 KB)
📄 update-mime-database(59.27 KB)
📄 uptime(14.3 KB)
📄 users(38.89 KB)
📄 utmpdump(30.3 KB)
📄 vdir(147.8 KB)
📄 vi(3.48 MB)
📄 view(3.48 MB)
📄 vim(3.48 MB)
📄 vim.basic(3.48 MB)
📄 vimdiff(3.48 MB)
📄 vimtutor(2.1 KB)
📄 vmstat(34.72 KB)
📄 w(22.3 KB)
📄 wall(38.3 KB)
📄 watch(26.71 KB)
📄 wc(51.05 KB)
📄 wdctl(70.34 KB)
📄 wget(527.36 KB)
📄 whereis(30.77 KB)
📄 which(946 B)
📄 which.debianutils(946 B)
📄 who(59.02 KB)
📄 whoami(38.86 KB)
📄 x86_64(26.58 KB)
📄 xargs(70.45 KB)
📄 xdg-user-dir(234 B)
📄 xdg-user-dirs-update(26.16 KB)
📄 xsubpp(5.05 KB)
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📄 yes(38.83 KB)
📄 ypdomainname(22.15 KB)
📄 zcat(1.94 KB)
📄 zcmp(1.64 KB)
📄 zdiff(6.31 KB)
📄 zdump(22.52 KB)
📄 zegrep(29 B)
📄 zfgrep(29 B)
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Editing: py3versions

#! /usr/bin/python3

import os
import re
import sys

_defaults = None
_old_versions = None
_unsupported_versions = None
_supported_versions = ["python%s" % ver.strip() for ver in
                       os.environ.get('DEBPYTHON3_SUPPORTED', '').split(',')
                       if ver.strip()]
#_default_version = "python%s" % os.environ.get('DEBPYTHON3_DEFAULT', '')
#if _default_version == 'python':
#    _default_version = None
_default_version = None

def read_default(name=None):
    global _defaults
    from configparser import ConfigParser, NoOptionError
    if not _defaults:
        if os.path.exists('/usr/share/python3/debian_defaults'):
            config = ConfigParser()
            defaultsfile = open('/usr/share/python3/debian_defaults')
            config.read_file(defaultsfile)
            defaultsfile.close()
            _defaults = config

if _defaults and name:
        try:
            value = _defaults.get('DEFAULT', name)
        except NoOptionError:
            raise ValueError
        return value
    return None

def version_to_tuple(version):
    return tuple(int(part) for part in version.split('.'))

def parse_versions(vstring):
    if len(vstring.split(',')) > 2:
        raise ValueError('too many arguments provided for X-Python3-Version: min and max only.')
    import operator
    operators = {None: operator.eq, '=': operator.eq,
                 '>=': operator.ge, '<=': operator.le,
                 '<<': operator.lt}
    vinfo = {}
    exact_versions = set()
    version_range = set(supported_versions(version_only=True))
    relop_seen = False
    for field in vstring.split(','):
        field = field.strip()
        if field == 'all':
            continue
        if field in ('current', 'current_ext'):
            continue
        vinfo.setdefault('versions', set())
        ve = re.compile(r'(>=|<=|<<|=)? *(\d\.\d+)$')
        m = ve.match(field)
        try:
            if not m:
                raise ValueError('error parsing Python3-Version attribute')
            op, v = m.group(1), m.group(2)
            vmaj, vmin = v.split('.')
            if int(vmaj) < 3:
                continue
            if op in (None, '='):
                exact_versions.add(v)
            else:
                relop_seen = True
                filtop = operators[op]
                version_range = [av for av in version_range if filtop(
                    version_to_tuple(av), version_to_tuple(v))]
        except Exception:
            raise ValueError('error parsing Python3-Version attribute')
    if 'versions' in vinfo:
        vinfo['versions'] = exact_versions
        if relop_seen:
            vinfo['versions'] = exact_versions.union(version_range)
    return vinfo

def old_versions(version_only=False):
    global _old_versions
    if not _old_versions:
        try:
            value = read_default('old-versions')
            _old_versions = [s.strip() for s in value.split(',')]
        except ValueError:
            _old_versions = []
    if version_only:
        return [v[6:] for v in _old_versions]
    else:
        return _old_versions

def unsupported_versions(version_only=False):
    global _unsupported_versions
    if not _unsupported_versions:
        try:
            value = read_default('unsupported-versions')
            _unsupported_versions = [s.strip() for s in value.split(',')]
        except ValueError:
            _unsupported_versions = []
    if version_only:
        return [v[6:] for v in _unsupported_versions]
    else:
        return _unsupported_versions

def supported_versions(version_only=False):
    global _supported_versions,_default_version
    default_version()
    if not _supported_versions:
        try:
            value = read_default('supported-versions')
            _supported_versions = [s.strip() for s in value.split(',')]
        except ValueError:
            cmd = ['/usr/bin/apt-cache', '--no-all-versions',
                   'show', 'python3-all']
            try:
                import subprocess
                p = subprocess.Popen(cmd, bufsize=1,
                                     shell=False, stdout=subprocess.PIPE)
                fd = p.stdout
            except ImportError:
                fd = os.popen(' '.join(cmd))
            depends = None
            for line in fd:
                if line.startswith('Depends:'):
                    depends = line.split(':', 1)[1].strip().split(',')
            fd.close()
            depends = [re.sub(r'\s*(\S+)[ (]?.*', r'\1', s) for s in depends]
            _supported_versions = depends
    default = _supported_versions.pop(_supported_versions.index(_default_version))
    _supported_versions.sort()
    _supported_versions.append(default)
    if version_only:
        return [v[6:] for v in _supported_versions]
    else:
        return _supported_versions

def default_version(version_only=False):
    global _default_version
    if not _default_version:
        _default_version = os.readlink('/usr/bin/python3')
    # consistency check
    debian_default = read_default('default-version')
    if not _default_version in (debian_default, os.path.join('/usr/bin', debian_default)):
        raise ValueError("the symlink /usr/bin/python3 does not point to the "
                         "python3 default version. It must be reset "
                         "to point to %s" % debian_default)
    _default_version = debian_default
    if version_only:
        return _default_version[6:]
    else:
        return _default_version

def requested_versions(vstring, version_only=False):
    global _default_version
    default_version()
    versions = None
    vinfo = parse_versions(vstring)
    supported = supported_versions(version_only=True)
    if len(vinfo) == 1:
        versions = vinfo['versions'].intersection(supported)
        vl = []
        for version in versions: vl.append(version)
        try:
            default = vl.pop(vl.index(_default_version[6:]))
        except:
            default = ''
        vl.sort()
        if default:
            vl.append(default)
    else:
        raise ValueError('No supported python3 versions in version string')
    if not versions:
        raise ValueError('empty set of versions')
    if version_only:
        return vl
    else:
        return ['python%s' % v for v in vl]

def installed_versions(version_only=False):
    import glob
    supported = supported_versions()
    versions = [os.path.basename(s)
                for s in glob.glob('/usr/bin/python3.[0-9]') + glob.glob('/usr/bin/python3.[0-9][0-9]')
                if os.path.basename(s) in supported]
    versions.sort()
    if version_only:
        return [v[6:] for v in versions]
    else:
        return versions

def minmax_supported_version(minmax, version_only=False):
    supported_versions_list = supported_versions(True)
    version = minmax(version_to_tuple(ver) for ver in supported_versions_list)
    version_str = '%d.%d' % version
    if version_only:
        return version_str
    else:
        return 'python' + version_str

class ControlFileValueError(ValueError):
    pass

class MissingVersionValueError(ValueError):
    pass

def extract_pyversion_attribute(fn, pkg):
    """read the debian/control file, extract the X-Python3-Version
    field."""

version = None
    sversion = None
    section = None
    with open(fn, encoding='utf-8') as controlfile:
        lines = [line.strip() for line in controlfile]
    for line in lines:
        if line == '' and section != None:
            if pkg == 'Source':
                break
            section = None
        elif line.startswith('Source:'):
            section = 'Source'
        elif line.startswith('Package: ' + pkg):
            section = pkg
        elif line.lower().startswith('x-python3-version:'):
            if section != 'Source':
                raise ValueError('attribute X-Python3-Version not in Source section')
            sversion = line.split(':', 1)[1].strip()
    if section is None:
        raise ControlFileValueError('not a control file')
    if pkg == 'Source':
        if sversion is None:
            raise MissingVersionValueError('no X-Python3-Version in control file')
        return sversion
    return version

'''
def requested_versions_bis(vstring, version_only=False):
    versions = []
    py_supported_short = supported_versions(version_only=True)
    for item in vstring.split(','):
        v=item.split('-')
        if len(v)>1:
            if not v[0]:
                v[0] = py_supported_short[0]
            if not v[1]:
                v[1] = py_supported_short[-1]
            for ver in py_supported_short:
                try:
                    if version_cmp(ver,v[0]) >= 0 \
                           and version_cmp(ver,v[1]) <= 0:
                        versions.append(ver)
                except ValueError:
                    pass
        else:
            if v[0] in py_supported_short:
                versions.append(v[0])
    versions.sort(version_cmp)
    if not versions:
        raise ValueError('empty set of versions')
    if not version_only:
        versions=['python'+i for i in versions]
    return versions
'''

def main():
    from optparse import OptionParser
    usage = '[-v] [-h] [-d|--default] [-s|--supported] [-i|--installed] '
    '[-r|--requested <version string>|<control file>]'
    parser = OptionParser(usage=usage)
    parser.add_option('-d', '--default',
                      help='print the default python3 version',
                      action='store_true', dest='default')
    parser.add_option('-s', '--supported',
                      help='print the supported python3 versions',
                      action='store_true', dest='supported')
    parser.add_option('-r', '--requested',
                      help='print the python3 versions requested by a build; '
                           'the argument is either the name of a control file '
                           'or the value of the X-Python3-Version attribute',
                      action='store_true', dest='requested')
    parser.add_option('-i', '--installed',
                      help='print the installed supported python3 versions',
                      action='store_true', dest='installed')
    parser.add_option('--min-supported',
                      help='print the minimum supported python3 version',
                      action='store_true', dest='minsupported')
    parser.add_option('--max-supported',
                      help='print the maximum supported python3 version',
                      action='store_true', dest='maxsupported')
    parser.add_option('-v', '--version',
                      help='print just the version number(s)',
                      default=False, action='store_true', dest='version_only')
    opts, args = parser.parse_args()
    program = os.path.basename(sys.argv[0])

if opts.default and len(args) == 0:
        try:
            print(default_version(opts.version_only))
        except ValueError as msg:
            print("%s:" % program, msg)
            sys.exit(1)
    elif opts.supported and len(args) == 0:
        print(' '.join(supported_versions(opts.version_only)))
    elif opts.installed and len(args) == 0:
        print(' '.join(installed_versions(opts.version_only)))
    elif opts.minsupported and len(args) == 0:
        print(minmax_supported_version(min, opts.version_only))
    elif opts.maxsupported and len(args) == 0:
        print(minmax_supported_version(max, opts.version_only))
    elif opts.requested and len(args) <= 1:
        if len(args) == 0:
            versions = 'debian/control'
        else:
            versions = args[0]
        try:
            if os.path.isfile(versions):
                fn = versions
                try:
                    vstring = extract_pyversion_attribute(fn, 'Source')
                    vs = requested_versions(vstring, opts.version_only)
                except ControlFileValueError:
                    sys.stderr.write("%s: not a control file: %s, "
                                     % (program, fn))
                    sys.exit(1)
                except MissingVersionValueError:
                    sys.stderr.write("%s: no X-Python3-Version in control "
                                     "file, using supported versions\n" %
                                     program)
                    vs = supported_versions(opts.version_only)
            else:
                vs = requested_versions(versions, opts.version_only)
            print(' '.join(vs))
        except ValueError as msg:
            sys.stderr.write("%s: %s\n" % (program, msg))
            sys.exit(1)
    else:
        sys.stderr.write("usage: %s %s\n" % (program, usage))
        sys.exit(1)

if __name__ == '__main__':
    main()

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