String Question

[diffuser78]

mac_string = '001485e55503' (This is the mac address of a computer.)

I am using wake on LAN python script to start computer remote.It uses
format like this ....

s.sendto('\xff'*6 + '\x00\x014\x85\xe5\x55\x03'*16, ('192.168.1.255',
80))

where '\x00\x14\x85\xe5\x55\x03' is the MAC address to be used.
What I do is break the string into 6 parts like this,

str01=mac_string[0:2]
str02=mac_string[2:4]
str03=mac_string[4:6]
str04=mac_string[6:8]
str05=mac_string[8:10]
str06=mac_string[10:12]

and if I use it like this

s.sendto('\xff'*6 + '\xstr01\xstr02\xstr03\xstr04\xstr05\xstr06'*16,
('192.168.1.255', 80))
I get an error
I also tried like this
s.sendto('\xff'*6 + 'mac_string'*16, ('192.168.1.255', 80))

Thiis also didnt work.
Since the MAC adddress are hexadecimal, how should I go about it here.

Please help, every help is appreciated. Thanks

[Fredrik Lundh]

di********@gmail.com wrote:

mac_string = '001485e55503' (This is the mac address of a computer.)

I am using wake on LAN python script to start computer remote.It uses
format like this ....

s.sendto('\xff'*6 + '\x00\x014\x85\xe5\x55\x03'*16, ('192.168.1.255',
80))

where '\x00\x14\x85\xe5\x55\x03' is the MAC address to be used.

s.sendto('\xff'*6 + binascii.unhexlify(mac_string) *16, ('192.168.1.255', 80))

</F>

[Iain King]

di********@gmail.com wrote:

mac_string = '001485e55503' (This is the mac address of a computer.)

I am using wake on LAN python script to start computer remote.It uses
format like this ....

s.sendto('\xff'*6 + '\x00\x014\x85\xe5\x55\x03'*16, ('192.168.1.255',
80))

where '\x00\x14\x85\xe5\x55\x03' is the MAC address to be used.
What I do is break the string into 6 parts like this,

str01=mac_string[0:2]
str02=mac_string[2:4]
str03=mac_string[4:6]
str04=mac_string[6:8]
str05=mac_string[8:10]
str06=mac_string[10:12]

and if I use it like this

s.sendto('\xff'*6 + '\xstr01\xstr02\xstr03\xstr04\xstr05\xstr06'*16,
('192.168.1.255', 80))
I get an error
I also tried like this
s.sendto('\xff'*6 + 'mac_string'*16, ('192.168.1.255', 80))

Thiis also didnt work.
Since the MAC adddress are hexadecimal, how should I go about it here.

Please help, every help is appreciated. Thanks

See http://docs.python.org/lib/typesseq-strings.html

You probably want:

s.sendto('\xff'*6 + ('\x%s\x%s\x%s\x%s\x%s\x%s' % (str01, str02, str03,
sttr04, str05, str06))*16, ('192.168.1.255', 80))

Iain

[diffuser78]

Many Thanks!! It worked like a charm.

Fredrik Lundh wrote:

di********@gmail.com wrote:

mac_string = '001485e55503' (This is the mac address of a computer.)

I am using wake on LAN python script to start computer remote.It uses
format like this ....

s.sendto('\xff'*6 + '\x00\x014\x85\xe5\x55\x03'*16, ('192.168.1.255',
80))

where '\x00\x14\x85\xe5\x55\x03' is the MAC address to be used.

s.sendto('\xff'*6 + binascii.unhexlify(mac_string) *16, ('192.168.1.255', 80))

</F>

[diffuser78]

I will try this one too...thanks for your response.
Iain King wrote:

di********@gmail.com wrote:

mac_string = '001485e55503' (This is the mac address of a computer.)

I am using wake on LAN python script to start computer remote.It uses
format like this ....

s.sendto('\xff'*6 + '\x00\x014\x85\xe5\x55\x03'*16, ('192.168.1.255',
80))

where '\x00\x14\x85\xe5\x55\x03' is the MAC address to be used.
What I do is break the string into 6 parts like this,

str01=mac_string[0:2]
str02=mac_string[2:4]
str03=mac_string[4:6]
str04=mac_string[6:8]
str05=mac_string[8:10]
str06=mac_string[10:12]

and if I use it like this

s.sendto('\xff'*6 + '\xstr01\xstr02\xstr03\xstr04\xstr05\xstr06'*16,
('192.168.1.255', 80))
I get an error
I also tried like this
s.sendto('\xff'*6 + 'mac_string'*16, ('192.168.1.255', 80))

Thiis also didnt work.
Since the MAC adddress are hexadecimal, how should I go about it here.

Please help, every help is appreciated. Thanks

See http://docs.python.org/lib/typesseq-strings.html

You probably want:

s.sendto('\xff'*6 + ('\x%s\x%s\x%s\x%s\x%s\x%s' % (str01, str02, str03,
sttr04, str05, str06))*16, ('192.168.1.255', 80))

Iain

[Martin v. Löwis]

di********@gmail.com wrote:

mac_string = '001485e55503' (This is the mac address of a computer.)
Since the MAC adddress are hexadecimal, how should I go about it here.

Please help, every help is appreciated. Thanks

I could not quite understand what you are trying to achieve, but
it appears that you want to convert a character strings of hexadecimal
characters into a byte string with the same bytes. I recommend this:

py> import binascii
py> binascii.a2b_hex("001485e55503")
'\x00\x14\x85\xe5U\x03'

Of course, if the string is fixed, you could just as well use the
result string (i.e. '\x00\x14\x85\xe5U\x03') directly.

Regards,
Martin

[Tim Roberts]

"Iain King" <ia******@gmail.com> wrote:

You probably want:

s.sendto('\xff'*6 + ('\x%s\x%s\x%s\x%s\x%s\x%s' % (str01, str02, str03,
sttr04, str05, str06))*16, ('192.168.1.255', 80))

You probably should TRY suggestions before you post them. That will get an
"invalid \x escape". \x must be followed by exactly two hex digits. You
can't build up an escape sequence like this.
--
- Tim Roberts, ti**@probo.com
Providenza & Boekelheide, Inc.

[Iain King]

Tim Roberts wrote:

"Iain King" <ia******@gmail.com> wrote:

You probably want:

s.sendto('\xff'*6 + ('\x%s\x%s\x%s\x%s\x%s\x%s' % (str01, str02, str03,
sttr04, str05, str06))*16, ('192.168.1.255', 80))

You probably should TRY suggestions before you post them. That will get an
"invalid \x escape". \x must be followed by exactly two hex digits. You
can't build up an escape sequence like this.
--
- Tim Roberts, ti**@probo.com
Providenza & Boekelheide, Inc.

You're right. I'd foolishly assumed that \x was just another character
code, like \t or \n. Apologies.

Iain