Python future.builtins.int() Examples

def splitnport(host, defport=-1):
    """Split host and port, returning numeric port.
    Return given default port if no ':' found; defaults to -1.
    Return numerical port if a valid number are found after ':'.
    Return None if ':' but not a valid number."""
    global _nportprog
    if _nportprog is None:
        import re
        _nportprog = re.compile('^(.*):(.*)$')

    match = _nportprog.match(host)
    if match:
        host, port = match.group(1, 2)
        try:
            if not port: raise ValueError("no digits")
            nport = int(port)
        except ValueError:
            nport = None
        return host, nport
    return host, defport 

def putheader(self, header, *values):
        """Send a request header line to the server.

        For example: h.putheader('Accept', 'text/html')
        """
        if self.__state != _CS_REQ_STARTED:
            raise CannotSendHeader()

        if hasattr(header, 'encode'):
            header = header.encode('ascii')
        values = list(values)
        for i, one_value in enumerate(values):
            if hasattr(one_value, 'encode'):
                values[i] = one_value.encode('latin-1')
            elif isinstance(one_value, int):
                values[i] = str(one_value).encode('ascii')
        value = bytes(b'\r\n\t').join(values)
        header = header + bytes(b': ') + value
        self._output(header) 

def _set_hostport(self, host, port):
        if port is None:
            i = host.rfind(':')
            j = host.rfind(']')         # ipv6 addresses have [...]
            if i > j:
                try:
                    port = int(host[i+1:])
                except ValueError:
                    if host[i+1:] == "": # http://foo.com:/ == http://foo.com/
                        port = self.default_port
                    else:
                        raise InvalidURL("nonnumeric port: '%s'" % host[i+1:])
                host = host[:i]
            else:
                port = self.default_port
            if host and host[0] == '[' and host[-1] == ']':
                host = host[1:-1]
        self.host = host
        self.port = port 

def request_port(request):
    host = request.host
    i = host.find(':')
    if i >= 0:
        port = host[i+1:]
        try:
            int(port)
        except ValueError:
            _debug("nonnumeric port: '%s'", port)
            return None
    else:
        port = DEFAULT_HTTP_PORT
    return port

# Characters in addition to A-Z, a-z, 0-9, '_', '.', and '-' that don't
# need to be escaped to form a valid HTTP URL (RFCs 2396 and 1738). 

def putheader(self, header, *values):
        """Send a request header line to the server.

        For example: h.putheader('Accept', 'text/html')
        """
        if self.__state != _CS_REQ_STARTED:
            raise CannotSendHeader()

        if hasattr(header, 'encode'):
            header = header.encode('ascii')
        values = list(values)
        for i, one_value in enumerate(values):
            if hasattr(one_value, 'encode'):
                values[i] = one_value.encode('latin-1')
            elif isinstance(one_value, int):
                values[i] = str(one_value).encode('ascii')
        value = bytes(b'\r\n\t').join(values)
        header = header + bytes(b': ') + value
        self._output(header) 

def request_port(request):
    host = request.host
    i = host.find(':')
    if i >= 0:
        port = host[i+1:]
        try:
            int(port)
        except ValueError:
            _debug("nonnumeric port: '%s'", port)
            return None
    else:
        port = DEFAULT_HTTP_PORT
    return port

# Characters in addition to A-Z, a-z, 0-9, '_', '.', and '-' that don't
# need to be escaped to form a valid HTTP URL (RFCs 2396 and 1738). 

def set_ok_port(self, cookie, request):
        if cookie.port_specified:
            req_port = request_port(request)
            if req_port is None:
                req_port = "80"
            else:
                req_port = str(req_port)
            for p in cookie.port.split(","):
                try:
                    int(p)
                except ValueError:
                    _debug("   bad port %s (not numeric)", p)
                    return False
                if p == req_port:
                    break
            else:
                _debug("   request port (%s) not found in %s",
                       req_port, cookie.port)
                return False
        return True 

def set_ok_port(self, cookie, request):
        if cookie.port_specified:
            req_port = request_port(request)
            if req_port is None:
                req_port = "80"
            else:
                req_port = str(req_port)
            for p in cookie.port.split(","):
                try:
                    int(p)
                except ValueError:
                    _debug("   bad port %s (not numeric)", p)
                    return False
                if p == req_port:
                    break
            else:
                _debug("   request port (%s) not found in %s",
                       req_port, cookie.port)
                return False
        return True 

def unquote(s):
    """Turn a string in the form =AB to the ASCII character with value 0xab"""
    return chr(int(s[1:3], 16)) 

def utcfromtimestamp(cls, t):
        "Construct a UTC datetime from a POSIX timestamp (like time.time())."
        t, frac = divmod(t, 1.0)
        us = int(frac * 1e6)

        # If timestamp is less than one microsecond smaller than a
        # full second, us can be rounded up to 1000000.  In this case,
        # roll over to seconds, otherwise, ValueError is raised
        # by the constructor.
        if us == 1000000:
            t += 1
            us = 0
        y, m, d, hh, mm, ss, weekday, jday, dst = _time.gmtime(t)
        ss = min(ss, 59)    # clamp out leap seconds if the platform has them
        return cls(y, m, d, hh, mm, ss, us)

    # XXX This is supposed to do better than we *can* do by using time.time(),
    # XXX if the platform supports a more accurate way.  The C implementation
    # XXX uses gettimeofday on platforms that have it, but that isn't
    # XXX available from Python.  So now() may return different results
    # XXX across the implementations. 

def handle_request(self, request_text=None):
        """Handle a single XML-RPC request passed through a CGI post method.

        If no XML data is given then it is read from stdin. The resulting
        XML-RPC response is printed to stdout along with the correct HTTP
        headers.
        """

        if request_text is None and \
            os.environ.get('REQUEST_METHOD', None) == 'GET':
            self.handle_get()
        else:
            # POST data is normally available through stdin
            try:
                length = int(os.environ.get('CONTENT_LENGTH', None))
            except (ValueError, TypeError):
                length = -1
            if request_text is None:
                request_text = sys.stdin.read(length)

            self.handle_xmlrpc(request_text)


# -----------------------------------------------------------------------------
# Self documenting XML-RPC Server. 

def utcfromtimestamp(cls, t):
        "Construct a UTC datetime from a POSIX timestamp (like time.time())."
        t, frac = divmod(t, 1.0)
        us = int(frac * 1e6)

        # If timestamp is less than one microsecond smaller than a
        # full second, us can be rounded up to 1000000.  In this case,
        # roll over to seconds, otherwise, ValueError is raised
        # by the constructor.
        if us == 1000000:
            t += 1
            us = 0
        y, m, d, hh, mm, ss, weekday, jday, dst = _time.gmtime(t)
        ss = min(ss, 59)    # clamp out leap seconds if the platform has them
        return cls(y, m, d, hh, mm, ss, us)

    # XXX This is supposed to do better than we *can* do by using time.time(),
    # XXX if the platform supports a more accurate way.  The C implementation
    # XXX uses gettimeofday on platforms that have it, but that isn't
    # XXX available from Python.  So now() may return different results
    # XXX across the implementations. 

def handle_request(self, request_text=None):
        """Handle a single XML-RPC request passed through a CGI post method.

        If no XML data is given then it is read from stdin. The resulting
        XML-RPC response is printed to stdout along with the correct HTTP
        headers.
        """

        if request_text is None and \
            os.environ.get('REQUEST_METHOD', None) == 'GET':
            self.handle_get()
        else:
            # POST data is normally available through stdin
            try:
                length = int(os.environ.get('CONTENT_LENGTH', None))
            except (ValueError, TypeError):
                length = -1
            if request_text is None:
                request_text = sys.stdin.read(length)

            self.handle_xmlrpc(request_text)


# -----------------------------------------------------------------------------
# Self documenting XML-RPC Server. 

def set_memlimit(limit):
    global max_memuse
    global real_max_memuse
    sizes = {
        'k': 1024,
        'm': _1M,
        'g': _1G,
        't': 1024*_1G,
    }
    m = re.match(r'(\d+(\.\d+)?) (K|M|G|T)b?$', limit,
                 re.IGNORECASE | re.VERBOSE)
    if m is None:
        raise ValueError('Invalid memory limit %r' % (limit,))
    memlimit = int(float(m.group(1)) * sizes[m.group(3).lower()])
    real_max_memuse = memlimit
    if memlimit > MAX_Py_ssize_t:
        memlimit = MAX_Py_ssize_t
    if memlimit < _2G - 1:
        raise ValueError('Memory limit %r too low to be useful' % (limit,))
    max_memuse = memlimit 

def splitnport(host, defport=-1):
    """Split host and port, returning numeric port.
    Return given default port if no ':' found; defaults to -1.
    Return numerical port if a valid number are found after ':'.
    Return None if ':' but not a valid number."""
    global _nportprog
    if _nportprog is None:
        import re
        _nportprog = re.compile('^(.*):(.*)$')

    match = _nportprog.match(host)
    if match:
        host, port = match.group(1, 2)
        try:
            if not port: raise ValueError("no digits")
            nport = int(port)
        except ValueError:
            nport = None
        return host, nport
    return host, defport 

def set_ok_port(self, cookie, request):
        if cookie.port_specified:
            req_port = request_port(request)
            if req_port is None:
                req_port = "80"
            else:
                req_port = str(req_port)
            for p in cookie.port.split(","):
                try:
                    int(p)
                except ValueError:
                    _debug("   bad port %s (not numeric)", p)
                    return False
                if p == req_port:
                    break
            else:
                _debug("   request port (%s) not found in %s",
                       req_port, cookie.port)
                return False
        return True 

def unquote(s):
    """Turn a string in the form =AB to the ASCII character with value 0xab"""
    return chr(int(s[1:3], 16)) 

def request_port(request):
    host = request.host
    i = host.find(':')
    if i >= 0:
        port = host[i+1:]
        try:
            int(port)
        except ValueError:
            _debug("nonnumeric port: '%s'", port)
            return None
    else:
        port = DEFAULT_HTTP_PORT
    return port

# Characters in addition to A-Z, a-z, 0-9, '_', '.', and '-' that don't
# need to be escaped to form a valid HTTP URL (RFCs 2396 and 1738). 

def putheader(self, header, *values):
        """Send a request header line to the server.

        For example: h.putheader('Accept', 'text/html')
        """
        if self.__state != _CS_REQ_STARTED:
            raise CannotSendHeader()

        if hasattr(header, 'encode'):
            header = header.encode('ascii')
        values = list(values)
        for i, one_value in enumerate(values):
            if hasattr(one_value, 'encode'):
                values[i] = one_value.encode('latin-1')
            elif isinstance(one_value, int):
                values[i] = str(one_value).encode('ascii')
        value = bytes(b'\r\n\t').join(values)
        header = header + bytes(b': ') + value
        self._output(header) 

def __floordiv__(self, other):
        if not isinstance(other, (int, timedelta)):
            return NotImplemented
        usec = self._to_microseconds()
        if isinstance(other, timedelta):
            return usec // other._to_microseconds()
        if isinstance(other, int):
            return timedelta(0, 0, usec // other) 

def _read_next_chunk_size(self):
        # Read the next chunk size from the file
        line = self.fp.readline(_MAXLINE + 1)
        if len(line) > _MAXLINE:
            raise LineTooLong("chunk size")
        i = line.find(b";")
        if i >= 0:
            line = line[:i] # strip chunk-extensions
        try:
            return int(line, 16)
        except ValueError:
            # close the connection as protocol synchronisation is
            # probably lost
            self._close_conn()
            raise 

def offset_from_tz_string(tz):
    offset = None
    if tz in UTC_ZONES:
        offset = 0
    else:
        m = TIMEZONE_RE.search(tz)
        if m:
            offset = 3600 * int(m.group(2))
            if m.group(3):
                offset = offset + 60 * int(m.group(3))
            if m.group(1) == '-':
                offset = -offset
    return offset 

def OutputString(self, attrs=None):
        # Build up our result
        #
        result = []
        append = result.append

        # First, the key=value pair
        append("%s=%s" % (self.key, self.coded_value))

        # Now add any defined attributes
        if attrs is None:
            attrs = self._reserved
        items = sorted(self.items())
        for key, value in items:
            if value == "":
                continue
            if key not in attrs:
                continue
            if key == "expires" and isinstance(value, int):
                append("%s=%s" % (self._reserved[key], _getdate(value)))
            elif key == "max-age" and isinstance(value, int):
                append("%s=%d" % (self._reserved[key], value))
            elif key == "secure":
                append(str(self._reserved[key]))
            elif key == "httponly":
                append(str(self._reserved[key]))
            else:
                append("%s=%s" % (self._reserved[key], value))

        # Return the result
        return _semispacejoin(result)


#
# Pattern for finding cookie
#
# This used to be strict parsing based on the RFC2109 and RFC2068
# specifications.  I have since discovered that MSIE 3.0x doesn't
# follow the character rules outlined in those specs.  As a
# result, the parsing rules here are less strict.
# 

def extract_cookies(self, response, request):
        """Extract cookies from response, where allowable given the request."""
        _debug("extract_cookies: %s", response.info())
        self._cookies_lock.acquire()
        try:
            self._policy._now = self._now = int(time.time())

            for cookie in self.make_cookies(response, request):
                if self._policy.set_ok(cookie, request):
                    _debug(" setting cookie: %s", cookie)
                    self.set_cookie(cookie)
        finally:
            self._cookies_lock.release() 

def set_cookie_if_ok(self, cookie, request):
        """Set a cookie if policy says it's OK to do so."""
        self._cookies_lock.acquire()
        try:
            self._policy._now = self._now = int(time.time())

            if self._policy.set_ok(cookie, request):
                self.set_cookie(cookie)


        finally:
            self._cookies_lock.release() 

def add_cookie_header(self, request):
        """Add correct Cookie: header to request (urllib.request.Request object).

        The Cookie2 header is also added unless policy.hide_cookie2 is true.

        """
        _debug("add_cookie_header")
        self._cookies_lock.acquire()
        try:

            self._policy._now = self._now = int(time.time())

            cookies = self._cookies_for_request(request)

            attrs = self._cookie_attrs(cookies)
            if attrs:
                if not request.has_header("Cookie"):
                    request.add_unredirected_header(
                        "Cookie", "; ".join(attrs))

            # if necessary, advertise that we know RFC 2965
            if (self._policy.rfc2965 and not self._policy.hide_cookie2 and
                not request.has_header("Cookie2")):
                for cookie in cookies:
                    if cookie.version != 1:
                        request.add_unredirected_header("Cookie2", '$Version="1"')
                        break

        finally:
            self._cookies_lock.release()

        self.clear_expired_cookies() 

def __init__(self, version, name, value,
                 port, port_specified,
                 domain, domain_specified, domain_initial_dot,
                 path, path_specified,
                 secure,
                 expires,
                 discard,
                 comment,
                 comment_url,
                 rest,
                 rfc2109=False,
                 ):

        if version is not None: version = int(version)
        if expires is not None: expires = int(expires)
        if port is None and port_specified is True:
            raise ValueError("if port is None, port_specified must be false")

        self.version = version
        self.name = name
        self.value = value
        self.port = port
        self.port_specified = port_specified
        # normalise case, as per RFC 2965 section 3.3.3
        self.domain = domain.lower()
        self.domain_specified = domain_specified
        # Sigh.  We need to know whether the domain given in the
        # cookie-attribute had an initial dot, in order to follow RFC 2965
        # (as clarified in draft errata).  Needed for the returned $Domain
        # value.
        self.domain_initial_dot = domain_initial_dot
        self.path = path
        self.path_specified = path_specified
        self.secure = secure
        self.expires = expires
        self.discard = discard
        self.comment = comment
        self.comment_url = comment_url
        self.rfc2109 = rfc2109

        self._rest = copy.copy(rest) 

def offset_from_tz_string(tz):
    offset = None
    if tz in UTC_ZONES:
        offset = 0
    else:
        m = TIMEZONE_RE.search(tz)
        if m:
            offset = 3600 * int(m.group(2))
            if m.group(3):
                offset = offset + 60 * int(m.group(3))
            if m.group(1) == '-':
                offset = -offset
    return offset 

def get_section(value):
    """ '*' digits

    The formal BNF is more complicated because leading 0s are not allowed.  We
    check for that and add a defect.  We also assume no CFWS is allowed between
    the '*' and the digits, though the RFC is not crystal clear on that.
    The caller should already have dealt with leading CFWS.

    """
    section = Section()
    if not value or value[0] != '*':
        raise errors.HeaderParseError("Expected section but found {}".format(
                                        value))
    section.append(ValueTerminal('*', 'section-marker'))
    value = value[1:]
    if not value or not value[0].isdigit():
        raise errors.HeaderParseError("Expected section number but "
                                      "found {}".format(value))
    digits = ''
    while value and value[0].isdigit():
        digits += value[0]
        value = value[1:]
    if digits[0] == '0' and digits != '0':
        section.defects.append(errors.InvalidHeaderError("section number"
            "has an invalid leading 0"))
    section.number = int(digits)
    section.append(ValueTerminal(digits, 'digits'))
    return section, value 

def add_cookie_header(self, request):
        """Add correct Cookie: header to request (urllib.request.Request object).

        The Cookie2 header is also added unless policy.hide_cookie2 is true.

        """
        _debug("add_cookie_header")
        self._cookies_lock.acquire()
        try:

            self._policy._now = self._now = int(time.time())

            cookies = self._cookies_for_request(request)

            attrs = self._cookie_attrs(cookies)
            if attrs:
                if not request.has_header("Cookie"):
                    request.add_unredirected_header(
                        "Cookie", "; ".join(attrs))

            # if necessary, advertise that we know RFC 2965
            if (self._policy.rfc2965 and not self._policy.hide_cookie2 and
                not request.has_header("Cookie2")):
                for cookie in cookies:
                    if cookie.version != 1:
                        request.add_unredirected_header("Cookie2", '$Version="1"')
                        break

        finally:
            self._cookies_lock.release()

        self.clear_expired_cookies()