question from beginner

[dario]

Hi, Im new on phyton programming.
On my GPRS modem with embedded Phyton 1.5.2+ version, I have to receive
a string from serial port and after send this one enclosed in an
e-mail.
All OK if the string is directly generated in the code. But it doesn't
works if I wait for this inside a 'while' loop. This is the simple
code:

global stringZVEI

while stringZVEI=='':
MOD.sleep(10)
a=SER.send(' sono nel while stringZVEI==st vuota')
stringZVEI = SER.readbyte()
a=SER.send(' stringZVEI=')
a=SER.send(stri ngZVEI)

MOD and SER are embedded class maked by third part.

From my very little debug possibility it seem that loop is executed 1

time only nevertheless stringZVEI is still empty. The line
a=SER.send(' stringZVEI=')
work correctly but

a=SER.send(stri ngZVEI)

doesn't work

Any suggestion?

Thanks
Dario.

[Mike P.]

On Fri, 9 Sep 2005 13:55:03 -0700, Trent Mick wrote:

[Mike Meyer wrote]

stri ker <st*****@trip.n et> writes:

Has anyone here upgraded from 2.3 to 2.4 on Tiger?
If so how'd ya do it?

You don't. You install 2.4 in parallel with 2.3. You can do pretty
much whatever you want with /usr/bin/python, /usr/local/bin/python,
etc. - Tiger doesn't seem to use those. I don't remember if I replaced
one or not, but don't touch anything else about the 2.3 installtion.

I installed the darwinports version of 2.4, and have been using it
ever since for all my stuff.

There are also the following install options:

- ActivePython:
http://www.activestate.com/Products/ActivePython/
(disclaimer: I make this distro)

- MacPython:
http://undefined.org/python/#python
by Bob Ippolito

- fink (similar in spirit to the darwinports project) also has a Python
I believe
Trent

I just got a Mac and was wondering the same thing as the original poster -
how to move to 2.4, but I found out there was more than one version.
So in addition to the Apple installation of 2.3, there are 4 versions of
Python 2.4 (ActivePython, MacPython, fink, darwinports).

Which one should I go for? What are other people using (i.e. which is the
most popular version)? Any particular advantages/disadvantages for each
version?

Cheers.

Mike

[Robert Kern]

Mike P. wrote:

Which one should I go for? What are other people using (i.e. which is the
most popular version)? Any particular advantages/disadvantages for each
version?

The official one.

http://python.org/2.4.1/

--
Robert Kern
rk***@ucsd.edu

"In the fields of hell where the grass grows high
Are the graves of dreams allowed to die."
-- Richard Harter

[Mike Meyer]

"Mike P." <no*****@for.me .thanks.com> writes:

I just got a Mac and was wondering the same thing as the original poster -
how to move to 2.4, but I found out there was more than one version.
So in addition to the Apple installation of 2.3, there are 4 versions of
Python 2.4 (ActivePython, MacPython, fink, darwinports).
emerge probably has one as well. And Robert Kern mentioned the
official one. The package systems may use one of the others,
especially if they are available in source form. If they all do, there
are only three distributions (ActivePython, MacPython, and the
official one), with the packages installing them in different places.
Which one should I go for? What are other people using (i.e. which is the
most popular version)? Any particular advantages/disadvantages for each
version?

Depends on what you want to do with it. If you favor one of the
package systems (fink, darwinports, emerge), you probably want to use
that one. That way, you won't have to worry about whether or not
another package from that system will find the one Python you
installed (and hence all the things installed by it), or will install
things again.

Otherwise, I agree with Robert - use the official one. Of course, if
one of the other two includes all the extra functionality you want,
use it.

Come to think of it, what's installed by Apple may count as a
different distribution as well. It certainly includes more than just
the official distribution.

<mike
--
Mike Meyer <mw*@mired.or g> http://www.mired.org/home/mwm/
Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information.

[Robert Kern]

Mike Meyer wrote:

Depends on what you want to do with it. If you favor one of the
package systems (fink, darwinports, emerge), you probably want to use
that one. That way, you won't have to worry about whether or not
another package from that system will find the one Python you
installed (and hence all the things installed by it), or will install
things again.

Otherwise, I agree with Robert - use the official one. Of course, if
one of the other two includes all the extra functionality you want,
use it.
One thing that should be noted is that fink's python, last time I
checked, isn't built as a framework build, so it can't talk to the
native GUI or use PyObjC. That's a shame.

darwinports' python is a framework build, but does silly things like
linking to an X11 version of Tk instead of TclTkAqua like the official
distribution.

ActiveState's python is also a framework build, but I don't see how it
adds anything beyond what's provided by the official installer besides
packaging freely available documentation.

I have no idea how emerge's python is built.

The official build is going to be the most widely used and tested. Tools
like py2app and PyObjC are guaranteed to work with it.
Come to think of it, what's installed by Apple may count as a
different distribution as well. It certainly includes more than just
the official distribution.

It's also old and probably won't be the same version in 10.5. If you
want any control over how you distribute your apps, use the official
2.4.1 binary and embed the interpreter inside your .app bundle with py2app.

--
Robert Kern
rk***@ucsd.edu

"In the fields of hell where the grass grows high
Are the graves of dreams allowed to die."
-- Richard Harter

[Mike Meyer]

Robert Kern <rk***@ucsd.edu > writes:

Come to think of it, what's installed by Apple may count as a
different distribution as well. It certainly includes more than just
the official distribution.

It's also old and probably won't be the same version in 10.5. If you
want any control over how you distribute your apps, use the official
2.4.1 binary and embed the interpreter inside your .app bundle with py2app.

IIRC, 10.4.2 ships with a more recent release than 2.4.1 - it comes
with 2.3.5. What I may not be recalling correctly is whether 2.3.5
postdates 2.4.1 or not.

For my uses - developing Unix server-side applications - which version
of Tk it links with is irrelevant. My Mac is a Unix laptop with
hardware support from the vendor. That it runs commercial apps under
Aqua is a nice bonus. That I can't get my favorite X wm on working on
it is unfortunate.

Come to think of it, that problem is OT for c.l.python - because my X
wm is written in Python, using python-xlib. So to post...

<mike
--
Mike Meyer <mw*@mired.or g> http://www.mired.org/home/mwm/
Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information.

[Robert Kern]

Mike Meyer wrote:

Robert Kern <rk***@ucsd.edu > writes:

Come to think of it, what's installed by Apple may count as a
different distribution as well. It certainly includes more than just
the official distribution.

It's also old and probably won't be the same version in 10.5. If you
want any control over how you distribute your apps, use the official
2.4.1 binary and embed the interpreter inside your .app bundle with py2app.

IIRC, 10.4.2 ships with a more recent release than 2.4.1 - it comes
with 2.3.5. What I may not be recalling correctly is whether 2.3.5
postdates 2.4.1 or not.

Okay, when I said "old" I really meant "lower version."

--
Robert Kern
rk***@ucsd.edu

"In the fields of hell where the grass grows high
Are the graves of dreams allowed to die."
-- Richard Harter

[dario]

Hi Dennis, unfortunately I can only use SER class and not 'serial'
class.
This because my emebedded phyton version don't show any import
possibility to this class. It run on the Trizium modem.
Serial I attached above, was coming from the 'simulator' code installed
on my PC.
How I can simulate your code without serial class? It is better with
SER.read() than SER.readbyte() because I have to read a string.

Thanks.