mmap and bit wise twiddling - Raspberry Pi

= GPIO() LED01 = gpio.pin04 LED01 = 1 # led diode is shining (or gpio pin 4 is set) LED01 = 0 # led diode is off General suggestions, how to organise this work are more then welcome. Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: How to convert simple B/W graphic to the dot matrix for the LED display/sign

import Image im=Image.new('L', (100,100)) im=im.convert('1') px=im.load() px[0,0] Thanks, load() method works great. One more question. Finally, I would like to store array in the database. What is the best way to store arrays? Petr --

How to convert simple B/W graphic to the dot matrix for the LED display/sign

I would like to convert simple B/W graphic to the 432x64 pixel matrix. It is intended to display this graphic on the one color LED matrix sign/display (432 LEDs width, 64 LEDs height). I am experimenting with the PIL, but I did not find solution there. It will be really helpful If somebody here

Re: How to convert simple B/W graphic to the dot matrix for the LED display/sign

What file format is the graphic in? How big is it? What file format do you want it to be? Now, I am able to create the png file with the resolution 432x64 using PIL (using draw.text method for example). I would like to get the 432x64 True/False (Black/White) lookup table from this file, so

do something in time interval

(0.01) seconds = time.time() if not int(seconds % (5)): if eventFlag: print 5 seconds, hurray eventFlag = False else: eventFlag = True Best regards Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

User-defined Exceptions: is self.args OK?

() traceback.print_exc() Thanks for your replies. Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: SQL problem in python

in MyTable.select(MyTable.q.album == Pinkk Floyd): print row.album, row.filepath HTH Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: looking for a light weighted library/tool to write simple GUI above the text based application

Finaly, after few experiments, I am using pygame. It comunicates directly with the framebuffer and the performance is excellent. Thanks for your help. Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Data aggregation

into a new table. John Nagle I agree, maybe following can help http://tinyurl.com/32colp Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

property data-descriptor - how to pass additional constants to the get/set method

not look very nice to me. Is there some different/nicer/more pythonic way how to achieve above mentioned? regards Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

looking for a light weighted library/tool to write simple GUI above the text based application

here for your opinions/experiences/advices. Best regards Petr Jakes http://www.libsdl.org/ http://pyfltk.sourceforge.net/ http://www.pygame.org/news.html http://pyui.sourceforge.net/ http://pyglet.org/ -- http://mail.python.org/mailman/listinfo/python-list

Re: looking for a light weighted library/tool to write simple GUI above the text based application

I agree that SDL is probably the best choice but for the sake of completeness, Gtk can (at least in theory - I've never tried it) be built against directfb and run without X. from the Pygame Introduction: Pygame is a Python extension library that wraps the SDL library and it's helpers. So you

Re: looking for a light weighted library/tool to write simple GUI above the text based application

is already solved). what you are looking for is curse :) http://docs.python.org/lib/module-curses.html http://www.ibm.com/developerworks/linux/library/l-python6.html renaud Renaud, thanks for your reply. I think I was not specific/clear enough in my first posting. I know the curses

Re: Pivot Table/Groupby/Sum question

On Jan 4, 4:55 pm, [EMAIL PROTECTED] wrote: Petr thanks so much for your input. I'll try to learnSQL, especially if I'll do a lot of database work. I tried to do it John's way as en exercise and I'm happy to say I understand a lot more. Basically I didn't realize I could nest dictionaries

Re: Pivot Table/Groupby/Sum question

using win32api, win32com ( http://tinyurl.com/2m3x3v ) HTH Petr Jakes #!/usr/bin/env python # -*- coding: cp1250 -*- import sqlite3 con = sqlite3.connect(:memory:) cur = con.cursor() normalizedInputData=[] subCategories=[] rawData = [['Italy', 'Horror', '70s', 'Suspiria','Dario Argento', 4

Re: Pivot Table/Groupby/Sum question

So the data comes in as a long list. I'm dealing with some information on various countries with 6 pieces of information to pivot. Just to make it simple it's like a video store database. The data is like [Country, Category, Sub Category, Film Title, Director, Number of Copies]. data =

Re: Newbie: Why doesn't this work

function calls upon access to defined attribute). My question is: is it possible to set the property for any attribute when I do not know what will be the name of the attribute in the future? Thanks for your reply Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Newbie: Why doesn't this work

was: Is it possible to define some general sort of set/get/del/doc rules for the attributes which are defined in the code AFTER the instantiation of an object. I am sending this question even I feel such a on the fly creation of the attribute is probably not a good trick. Petr Jakes -- http://mail.python.org

Re: Newbie: Why doesn't this work

(self): for no in range(10): yield no myNo=property(getInfo) gen=GenExample() print gen.myNo.next() print gen.myNo.next() . . print gen.myNo.next() -- Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Pivot Table/Groupby/Sum question

Patrick, in your first posting you are writing ... I'm trying to learn how to make pivot tables from some excel sheets Can you be more specific please? AFIK Excel offers very good support for pivot tables. So why to read tabular data from the Excel sheet and than transform it to pivot tabel

Re: Pivot Table/Groupby/Sum question

Yes, I realize Excel has excellent support for pivot tables. However, I hate how Excel does it and, for my particular excel files, I need them to be formated in an automated way because I will have a number of them over time and I'd prefer just to have python do it in a flash than to do it

Re: Pivot Table/Groupby/Sum question

What about to let SQL to work for you. HTH Petr Jakes Tested on Python 2.5.1 8-- #!/usr/bin/env python # -*- coding: utf-8 -*- import sqlite3 con = sqlite3.connect(:memory:) cur = con.cursor() inputData=( ('Bob', 'Morn', 240), ('Bob', 'Aft', 300), ('Joe', 'Morn', 70

Re: how to generate html table from table data?

web browser later on. I was just trying to find if somebody here can point me to the existing tool, which is suitable for such a task. Anyway thank you for trying me help. Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: how to generate html table from table data?

am really grateful for all replies. Thank you Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

how to generate html table from table data?

. Googling for a while I have found only this tool: http://pasko.net/PyHtmlTable/ Your tips to some other tools or/and your suggestion how to solve above mentioned will be very helpful. Thanks and regards Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

doctest + sqlobject (TDD)

displeje_pokus.py I am getting an error (see below) which I am not able to eliminate. thanks for your reply Petr Jakes == displeje_pokus.py == from sqlobject import * class TextyDispleje(SQLObject): pass if __name__ == __main__: import doctest

Re: doctest + sqlobject (TDD)

On Dec 22, 7:05 pm, Peter Otten [EMAIL PROTECTED] wrote: petr.jakes.tpc wrote: While you could either alter the textfile to import __main__ as displeje_pokus or the module along the lines of # not recommended! from displeje_pokus import TextyDispleje if __name__ == __main__: #

Re: doctest + sqlobject (TDD)

Thanks, it works. And thanks for your comments which are worth to think about :) Petr This has nothing to do with your previous problem. Use from __main__ import myFunction, myOtherFunction, ... or from __main__ import * if you prefer namespace pollution paradise*. Again, it would be

how to analyse music stream

stream form the PC radio card to get the signal: first tones of Frozen were played after Sacrifice, call to the studio :-) Of course, the calling can be made by PC as well, but this is the easiest part of the task :) Thanks for your tips and comments Petr Jakes PS: both, Linux or Windows tips

Re: datetime.time() class - How to pass it a time string?

means I'd be forced to parse the string myself). Does anyone know of a way I can make it use the string? Thanks. http://pleac.sourceforge.net/pleac_python/datesandtimes.html the part http://pleac.sourceforge.net/pleac_python/ datesandtimes.html HTH Petr Jakes -- http://mail.python.org/mailman

Re: Catching a key press

On 23 ec, 14:23, westymatt [EMAIL PROTECTED] wrote: linux primarily still a little lost in how to implementent this, however I understand what you are saying. maybe you can use this: http://tinyurl.com/2zyfmw HTH Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Help with PySMS

Maybe you can try python binding for gammu, which works great for me. HTH Petr Jakes http://cihar.com/gammu/python/ -- http://mail.python.org/mailman/listinfo/python-list

Re: writing serial port data to the gzip file

Maybe I am missing something. Expect data is comming continually to the serial port for the period say 10min. (say form the GPS), than it stops for 1 minute and so on over and over. I would like to log such a data to the different gzip files. My example was written just for the simplicity (I was

Re: writing serial port data to the gzip file

Hi Dennis, thanks for your reply. Dennis Lee Bieber napsal: def dataOnSerialPort(): data=s.readLine() Unless you are using a custom serial port module, that should be s.readline() sorry for the typo if data: return data else: return 0 This

writing serial port data to the gzip file

the serial port. It looks like g.close() does not close the gz file. I was reading in the doc: Calling a GzipFile object's close() method does not close fileobj, since you might wish to append more material after the compressed data... so I am completely lost now... thanks for your comments. Petr

unicode mystery/problem

is a string. I am trying to use ChartDirector for Python (charts for Python) and the method layer.addDataSet() needs above mentioned syntax otherwise it returns an Error. layer.addDataSet(data, colour, str(dataName)) Thanks for your comments Petr Jakes -- http://mail.python.org/mailman

import gtk RuntimeError: could not open display

Hi my script is working well when I am running it from the terminal window. While I am trying to start it as a Cron job, I am getting an Error described bellow: My configuration: Pentium III, Python 2.4.1, Fedora Core4 Thanks for your comments. Petr Jakes File /root/eric/analyza_dat_TPC

Re: technique to enter text using a mobile phone keypad (T9 dictionary-based disambiguation)

Thanks a lot. It works flawlessly and I have learned few new Python tricks as well. Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: break the loop in one object and then return

will happen if the person will input character rather than integer. Again: good luck in your effort Petr Jakes Petr Jakes wrote: It smells like many student are trying to do their homework last few days here ... Can we now the name of your school? :) AFAIK this group does not solve

Re: break the loop in one object and then return

test if the input is an integer as well.. http://tinyurl.com/j468c Other suggested here which way to go. Good luck :) Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Simple Char-I/O Dialogs for Win32 and DOS

Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Most elegant way to generate 3-char sequence

can figure out what I was trying to accomplish. Sam Schulenburg +1 Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: what are you using python language for?

hacker1017 wrote: im just asking out of curiosity. a vending machine controlled from the PC (peripherals connected using I2C bus (SMBus) and the MDB coin change-giver and the bill acceptor connected to the serial port). Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

what is the reasonable (best?) Exception handling strategy?

. Regards Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

do some action once a minute

only!! polling 10x a second minutes=min print Eureca time.sleep(0.1) Regards Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: do some action once a minute

Thanks for your comment. It is mainly English issue (I am not native English speaker). OK, to be more specific, I would like to run the code, when the value of seconds in the timestamp become say 00. The whole code will run in the infinitive loop and other actions will be executed as well, so it

Re: ANN: eric3 3.9.0 released

I think you can get the answer on http://www.die-offenbachs.de/detlev/eric3-mailinglist.html rather then here. HTH Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Can I use python for this .. ??

off). Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: milliseconds are not stored in the timestamp KInterbasDB + Firebird

/kinterbasdb-3.2_pre_20060503.win32-FB-2.0-py2.4.exe Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

milliseconds are not stored in the timestamp KInterbasDB + Firebird

, KInterbasDB 3.2b1 Thanks for your advices. Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Using Databases in Python

Thank you very much, Steve. Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Using Databases in Python

I would like to know if anybody can point me to the site, where it is possible to find the tutorial Using Databases in Python which is mentioned by Steve Holden here: http://tinyurl.com/ectj8 Thanks Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Using Databases in Python

I have got Steven's book of course (it is excellent IMHO). I was just thinking some new approaches can be found in the tutorial. Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Coming from delphi - looking for an IDE - willing to spend money

Eric3 is great IMHO. http://www.die-offenbachs.de/detlev/eric3.html -- http://mail.python.org/mailman/listinfo/python-list

Re: kinterbas and Python

Jarek, I am using it always like in the following example to connect to the remote host and it works for me flawlessly. Petr Jakes import kinterbasdb as k con = k.connect( host='router.maren.cz', database='/data/sysdat01.gdb', user='SYSDBA', password='masterkey

Re: excel application

before posting questions (I am not saying it is a bad idea to ask here, I am only trying to show an simple alternative how to get an answers to your questions to you) HTH Regards Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

accesibility of the namespace

:Your credit= %3d % (credit)} While I am trying to import my_dictionary in to the main code, I am getting: exception unhandled NameError name credit is not defined How can I organize my code so the credit variable will be visible in the my_dictionary namespace? Thanks Petr Jakes -- http

Re: accesibility of the namespace

Thanks Steven, credit is mentioned to be a calculated value changed at run-time and your third hand suggestion is exactly what I was looking for. Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: accesibility of the namespace

? Thanks Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Pyserial again

to you in above mentioned posting as well) You can find plenty of examples on http://pyserial.sourceforge.net/ in the Examples paragraph. Try to study and search before you ask. HTH Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Pyserial again

Grant and Steve, I am wowed and amazed how supportive and helpful you (and other people in this group as well of course) are. Thanks. (sorry for OT) Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: spliting on :

I think you're getting caught by the classic and/or trap in Python, trying to avoid using a simple if statement. What do you mean by the classic and/or trap? Can you give an example please? Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Python Indentation Problems

options (I am trying to use spaces for indentation strictly) are: = - Use tabs for indentation - unchecked - Convert tabs upon open - checked = Because of that I am not getting to the troubles with indentation anymore. HTH Petr

Re: pyserial

, so you will be able to understand how to communicate with the serial port. HTH Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: pyserial

something? Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Pyserial never read

Well, I think it is better to start with some simple code first. Try to read serial port and print it out. something like this could work: import serial s = serial.Serial(port=2,baudrate=38400, timeout=20) while 1: print s.readline() Petr Jakes -- http://mail.python.org/mailman/listinfo

Re: editor for Python on Linux

Endless stories about IDEs (try to browse through this discussion group first). Of course it depends about users personal needs and taste. So install them and try them (I know, it's really time consuming). I thing there is not the other way to decide which one is the best for YOU. Petr Jakes

Re: how to break a for loop?

zero_list=[0,0,0,0,0,1,2,3,4] for x in range(len(zero_list)): if zero_list[x]!=0: break nonzero_list=zero_list[x:] print nonzero_list but some more pythonic solutions will be posted from other users I guess :) HTH Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

how to get function names from the file

with the function names sequences # and to create tuple which will contain the function names. # After that I would like to call functions from the tuple: functions=(printFoo, printFOO) for function in functions: function() Thanks for your postings Petr Jakes -- http://mail.python.org/mailman/listinfo

Re: What editor shall I use?

http://www.pspad.com/en/ Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: tricky regular expressions

titles[title], titles[title+x] except IndexError: pass HTH Petr Jakes PS: just wonder why are you asking the same question in two different topics -- http://mail.python.org/mailman/listinfo/python-list

how to parse structured text file?

I have a file which contains data in the format shown in the sample bellow. How can I parse it to get following: (14,trigger,guard,do_action,15) Thanks a lot for your postings Petr Jakes type: 4 bgrColor: 255 255 255 fgrColor: 0 0 0 objId: 16 Num.Pts: 2 177 104 350 134 objStartId: 14 objEndId

Re: how to parse structured text file?

Sorry I was not precise enough in my description. In the file, there is of course more sections starting with the keyword type: I would like to only analyze sections which start with the sequence: type: 4 Petr jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Python code written in 1998, how to improve/change it?

state/transition dependencies). Tanks to all for your previous postings. Petr Jakes State machine example, for the pull/push button mentioned earlier in this discussion thread class FSM: '''the states dictionary contains user defined state/transition table in the format: {'start_state

Re: Python code written in 1998, how to improve/change it?

Sorry, I can't get in. Can you please show me, how to use your approach on the simple push/push ON/OFF button for example please? PS: seriously it is not a homework :) and I feel it like a shame I am asking such a simple questions :( States: ON, OFF Transition event: push, lift transition

Re: Python code written in 1998, how to improve/change it?

Sorry for the typo in my previous posting. Of course it has to be: simple liftt/push ON/OFF button -- http://mail.python.org/mailman/listinfo/python-list

Python code written in 1998, how to improve/change it?

if the principles used in this code are still valid in the modern Python and if/how it can be improved (revrited) using futures of current version of Python. Thanks for your comments for a newbie and for your patience. Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: Python code written in 1998, how to improve/change it?

attributes etc. while trying to study the code in the example (http://tinyurl.com/a4zkn). All I wanted to know, if, thanks to the improvements in the Python functionality over the years, it is possible to simplify somhow the old code. Otherwise I have to dig through :) Petr Jakes PS: I agree

termios.tcgetattr(fd) error: (22, 'Invalid argument')

On my box (Fedora Core4, Python 2.4.1) I am getting following error: import termios, sys fd = sys.stdin.fileno() oldSettings = termios.tcgetattr(fd) Traceback (innermost last): File stdin, line 1, in ? error: (22, 'Invalid argument') Thanks for your comments. Petr Jakes -- http

Re: termios.tcgetattr(fd) error: (22, 'Invalid argument')

To provide some feedback: As Grant Edwards posted in this list, I was running my code inside of IDE that replaces sys.stdin with some other. While running the program from a shell prompt, everything goes fine. Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

convert string to the escaped string

Hi, I am trying to convert string to the escaped string. example: from 0xf I need \0xf I am able to do it like: a=0xf escaped_a=(\%s % a ).decode(string_escape) But it looks a little bit complicated in this beautiful language to me Regards Petr Jakes -- http://mail.python.org/mailman

Re: convert string to the escaped string

small mistake in my previous posting, sorry from 0xf I need \xf of course and mentioned code gives me \0xf of course. Thanks for your postings Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

Re: convert string to the escaped string

Fredrik, thanks for your posting. I really appretiate your reply and your way how you kindly answer even stupid newbie's questions on this mailing list. I was trying: int(0xf) but I did not have idea about the optional base parameter for the int function. Thanks a lot. Petr --

Re: UART parity setting as mark or space (using Pyserial???)

before sending each communication byte. Regards Petr Jakes -- http://mail.python.org/mailman/listinfo/python-list

UART parity setting as mark or space (using Pyserial???)

here knows some tricks how to set up the mark and space parity on the UART (using pyserial???), so I can simulate 9bit communication? (I know it sounds silly, but I would like to try to re-configure the UART parity before each byte transmission). Any comment will be appreciated. Petr Jakes