"Steven D'Aprano" wrote in message
news:[email protected]...
> On Sun, 06 Jan 2013 19:44:08 +, Joseph L. Casale wrote:
>
>> I have a dataset that consists of a dict with text descriptions and
>> values that are integers. If required, I collect the values int
(serial.py?) with good results.
Paul Simon
"Ron Eggler" wrote in message
news:[email protected]...
> Hoi,
>
> I'm trying to connect to a serial port and always get the error
> "serial.serialutil.SerialException: Port is already open." w
"Mark Lawrence" wrote in message
news:[email protected]...
> All the references regarding the subject that I can find, e.g.
> http://stackoverflow.com/questions/1829872/read-datetime-back-from-sqlite-as-a-datetime-in-python,
>
> talk about creating a table in
ger(5) not null default 1,
> visits datetime not null,
> downloads set('None Yet'),
>
> foreign key (counterID) references counters(ID),
> unique index (visits)
> )ENGINE = MYISAM;
>
>
> Is the SET column type the way to do it?
> i tried it but the error i'm receiving is:
>
>
> pymysql.err.InternalError: (1241, 'Operand should contain 1 column(s)')
>
> Please help pick the necessary column type that will be able to store a a
> list of values.
> --
> https://mail.python.org/mailman/listinfo/python-list
If you have a list of values of the same type, but different values,
you need a new table with a foreign key to the table it relates to.
This is a relational database question. You can read more here:
http://en.wikipedia.org/wiki/Database_normalization#Normal_forms
--
Joel Goldstick
http://joelgoldstick.com
He doesn't a many to many table, although that would put the schema
into a classic normal form. Yes, there will be duplicated data. Sometimes
de-normalizing a schema may make things simpler and easier to use for
someone not used to database work. I would also use a many to many table
being familiar with normal forms but it is not a neccessity.
Paul Simon
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"Nick the Gr33k" wrote in message
news:[email protected]...
> 1/11/2013 7:07 ??, ?/? Paul Simon ??:
>
>> If you have a list of values of the same type, but different values,
>> you need a new table with a foreign key to the table it relates
After receiving the data, check the
received data for correct format, correct first and last characters, and if
possible, check sum. I've worked through this problem with rs-485 data
collection systems where there is no hand shaking and would not be surprised
to expect the same even with rs-232.
Paul Simon
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browne.com/ser-48.html ?
If there are indices and especially linked primary and foreign keys its
much more complicated than that. One has to delve into Access container
structures etc. As far as I know it has to be done from Access.
Paul Simon
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"rusi" wrote in message
news:92551c63-1347-4f1a-9dca-d1bbd5e4d...@ys5g2000pbc.googlegroups.com...
Its hard to distinguish what you are saying from what I said because
you've lost the quotes.
On Apr 15, 9:01 pm, "Paul Simon" wrote:
> "rusi" wrote in me
I suggest you look at matplotlib. It's a bit of a learning curve but will
do whatever you need. I have a similar requirement and found that gnuplot
did not work for me. The plots are impressive.
Paul Simon
wrote in message
news:[email protected]...
> Hello,
&g
subdirectories like
"build", "Demo", "Doc", "Include", "Lib", etc. There are many files under
/usr/bin/local/ which appear to be duplicates.
This looks like a mess to me and would like some help to sort this out.
Paul Simon
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only to the
point of confusion. I'm not an expert. How do I modify my python
configuration? Is there a file that needs to be edited? Which setup.py file
do I use? Make? or python setup.py build and python setup.py install?
Thanks. I appreciate your help.
Paul Simon
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"Chris Rebert" wrote in message
news:[email protected]...
On Wed, Jul 8, 2009 at 4:18 PM, Paul Simon wrote:
> I have the "tkinter" problem and need some assistance to straighten it
> out.
> >From the web page "http://wiki.
"Peter Otten" <[email protected]> wrote in message
news:[email protected]...
> Paul Simon wrote:
>
>> "Chris Rebert" wrote in message
>> news:[email protected]...
>> On Wed, Jul 8, 2009 at
"David Smith" wrote in message
news:[email protected]...
> Paul Simon wrote:
>> "Peter Otten" <[email protected]> wrote in message
>> news:[email protected]...
>>> Paul Simon wrote:
>>>
>>>>
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