DDE (eSignal)

[BBands]

I have a Python ap that needs current stock prices, which I want to get
from eSignal's DDE server. Following the win32all example:

import win32ui
import dde
server = dde.CreateServer()
server.Create("eSignalDDE")
conversation = dde.CreateConversation(server)
conversation.ConnectTo("WINROS", "Last")
last = conversation.Request("$spx")
print last

Which almost works. The return in PythonWin is the correct price as a
string with some extra chartacters appended.

'1402.670000000000\x00\x12\x00*\x00\x00\x004\xfb\x12\x00\xfd\x1a\xd9w4\xc1\x00'

Any thoughts on this?

TIA,

jab

 

[Thomas Heller]

I have a Python ap that needs current stock prices, which I want to get
from eSignal's DDE server. Following the win32all example:

import win32ui
import dde
server = dde.CreateServer()
server.Create("eSignalDDE")
conversation = dde.CreateConversation(server)
conversation.ConnectTo("WINROS", "Last")
last = conversation.Request("$spx")
print last

Which almost works. The return in PythonWin is the correct price as a
string with some extra chartacters appended.

'1402.670000000000\x00\x12\x00*\x00\x00\x004\xfb\x12\x00\xfd\x1a\xd9w4\xc1\x00'

Any thoughts on this?

TIA,

jab

Looks like a bug, either in the dde module or the dde server.
But it's easy to find a workaround:

'1402.670000000000\x00\x12\x00*\x00\x00\x004\xfb\x12\x00\xfd\x1a\xd9w4\xc1\x00'.split("\0")[0] '1402.670000000000'

Thomas

 

[BBands]

Looks like a bug, either in the dde module or the dde server.
But it's easy to find a workaround:
'1402.670000000000\x00\x12\x00*\x00\x00\x004\xfb\x12\x00\xfd\x1a\xd9w4\xc1\x00'.split("\0")[0]
'1402.670000000000'

float(last.split("\0")[0]) works for me.

Thanks for that!

jab

 

[Dennis Lee Bieber]

'1402.670000000000\x00\x12\x00*\x00\x00\x004\xfb\x12\x00\xfd\x1a\xd9w4\xc1\x00'

null, <ctrl-r>, null, *, null, null, null, 4, <unknown>, <ctrl-r>,
null, <unknown>, <ctrl-z>, <unknown>, w4, <unknown>, null

Interesting combination... I'm tempted to see if any of that decodes
as Baudot...

Of course, if all you want is the first n-characters, and you want
it as numeric...

float(theString[:n])
--
Wulfraed Dennis Lee Bieber KD6MOG
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