easy_install from svn
Hi all, I currently use easy_install to install packages from a custom, locally hosted package_index. The index consists of a single html doc with a list of package names and urls. All works well. I would like to get a little more sophisticated and install a package from subversion. My package is structured as described in the setuptools docs. Simply pointing the url in my package index to svn://my/repo/package/trunk works, but I would like - and I get the impression it is possible - to be able to specify a revision number, or a tag and have that version installed. Is it simply a case of appending a fragment to the url? Would anyone be so kind as to provide a working example? cheers, Rob Cowie -- http://mail.python.org/mailman/listinfo/python-list
Re: easy_install from svn
On Jun 19, 8:13 pm, Stefan Behnel [EMAIL PROTECTED] wrote: Rob Cowie wrote: I currently use easy_install to install packages from a custom, locally hosted package_index. The index consists of a single html doc with a list of package names and urls. All works well. I would like to get a little more sophisticated and install a package from subversion. My package is structured as described in the setuptools docs. Simply pointing the url in my package index to svn://my/repo/package/trunk works, but I would like - and I get the impression it is possible - to be able to specify a revision number, or a tag and have that version installed. Is it simply a case of appending a fragment to the url? Would anyone be so kind as to provide a working example? This is how we do it for lxml: http://cheeseshop.python.org/pypi/lxml/1.2.1 Stefan Thanks. I guess I was wrong in thinking that one could add a revision number to the url fragment and have easy_install get that revision. Instead, I should explicitly specify the urls in the package index (and/or setup.py) and identify them with the fragment. So, to make a head version and a tag available, the following urls must be in the package index: svn://svn/my/repo/package/trunk#egg=package-dev svn://svn/my/repo/package/tags/r1.0#egg=package-1.0 and install them thus... easy_install -i http://may/index package==dev | package==1.0 cheers, Rob Cowie -- http://mail.python.org/mailman/listinfo/python-list
Re: Documenting a package with Pydoc
Anyone? -- http://mail.python.org/mailman/listinfo/python-list
Re: Documenting a package with Pydoc
Gabriel Genellina wrote: At Friday 18/8/2006 11:45, Rob Cowie wrote: Pydoc seems to be capable of writing documentation for all modules within a package by simply pointing it to the package on the command line... pydoc -w packagename_without_/ Certainly, the method writedocs() appears to descend into a directory and create docs for each importable object. Perhaps I'm doing something wrong but when I do this, pydoc reports that no Python documentation can be found for each of the contents of the package. Of course, if I point pydoc directly to the modules, it succeeds. Am I doing something wrong? That appears to be a bug. In pydoc.writedocs, when iterating over the package directory contents, it uses inspect.getmodulename(path). That returns the bare filename (without path nor extension) (is it ok???), and later the resolve() function can't load the module because it lacks package information. I don't think this is a bug; inspect.getmodulename(path) does indeed return a bare filename, but this is later augmented with the pkgpath. I also can't find a resolve() function. Perhaps we have different versions? I have revision 1.38. For simple cases this patch may work: In writedocs, add the following line at the beginning: if pkgpath=='' and ispackage(dir): pkgpath = os.path.basename(dir) + '.' This works for top level packages located at sys.path, but not for packages located elsewhere. By example, I can generate now the docs for pychart: python c:\apps\python\lib\pydoc.py -w c:\apps\python\lib\site-packages\pychart Gabriel Genellina Softlab SRL Thanks, Rob C __ Preguntá. Respondé. Descubrí. Todo lo que querías saber, y lo que ni imaginabas, está en Yahoo! Respuestas (Beta). ¡Probalo ya! http://www.yahoo.com.ar/respuestas -- http://mail.python.org/mailman/listinfo/python-list
Documenting a package with Pydoc
I have searched this group and the wider net to find an answer to this, but I haven't been successful. Pydoc seems to be capable of writing documentation for all modules within a package by simply pointing it to the package on the command line... pydoc -w packagename_without_/ Certainly, the method writedocs() appears to descend into a directory and create docs for each importable object. Perhaps I'm doing something wrong but when I do this, pydoc reports that no Python documentation can be found for each of the contents of the package. Of course, if I point pydoc directly to the modules, it succeeds. Am I doing something wrong? Cheers, Rob C -- http://mail.python.org/mailman/listinfo/python-list
Re: Type conversion?
KraftDiner wrote:
I have the following code...
import array
len32 = array.array('L')
len16 = array.array('H')
len32.append(0)
len16.append(0)
y = len32[0]
print y.__class__
type 'long'
z = len16[0]
print z.__class__
type 'int'
how can I change Zs type to long?
z_long = long(z)
type(z_long)
type 'long'
Or how how can I change an arrays type?
--
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Re: how can I avoid abusing lists?
Just forget the lists...
counters = {0:0, 1:0, 2:0, 3:0, 4:0}
def increment(value):
counters[value] += 1
increment(1)
increment(1)
increment(3)
increment(4)
print counters[0]
0
print counters[1]
2
print coutners[2]
0
print counters[3]
1
print coutners[4]
1
The increment function should probably include a try:...except:
statement to catch KeyErrors that would arise if you passed a value
that is not a key in the counters dictionary.
Rob C
--
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Re: how can I avoid abusing lists?
No, your question was clear. With hindsght and a more thorough read of your post I see my error ;^) -- http://mail.python.org/mailman/listinfo/python-list
Calling every method of an object from __init__
Hi all, Is there a simple way to call every method of an object from its __init__()? For example, given the following class, what would I replace the comment line in __init__() with to result in both methods being called? I understand that I could just call each method by name but I'm looking for a mechanism to avoid this. class Foo(object): def __init__(self): #call all methods here def test(self): print 'The test method' def hello(self): print 'Hello user' Thanks, Rob C -- http://mail.python.org/mailman/listinfo/python-list
Re: Most elegant way to generate 3-char sequence
John Machin wrote: On 10/06/2006 7:49 AM, Rob Cowie wrote: Hi all, I wish to generate a sequence of the form 'aaa', 'aab', aac' 'aba', 'abb', 'abc' etc. all the way to 'zzz'. How would you construct a generator to acheive this? A simple, working but somewhat inelegant solution is... You're not wrong. alpha = ['a','b','c','d'] #shortened for brevity Hope you remember the alphabet correctly. Not sure I understand your point. Why would I forget the alphabet? Why type all that punctuation? What punctuation? Any reason this cruft is global (i.e. not local to the generator)? No alpha2 = ['a','b','c','d'] alpha3 = ['a','b','c','d'] Hope you get the redundant copy/paste right. Again, I don't understand what you mean def generator(): for char in alpha: Why stop at two spaces? One-space indentation is syntactically correct :-) As are 3, 4 and 5 space indentation. Yet again, what is your point? for char2 in alpha2: for char3 in alpha3: yield char + char2 + char3 x = generate() Did you meant generator? Yes, made a mistake x.next() # etc, etc, etc, | def generator(): ... import string ... alpha = string.ascii_lowercase ... for char in alpha: ... for char2 in alpha: ... for char3 in alpha: ... yield char + char2 + char3 ... | x = generator() | the_lot = list(x) | len(the_lot) == 26 ** 3 True | [the_lot[i] for i in (0, 1, 25, 26, -27, -26, -1)] ['aaa', 'aab', 'aaz', 'aba', 'zyz', 'zza', 'zzz'] Cheers, John I'm aware the code I posted is not great - it isn't code I would consider using. It was only intended to serve as an illustration of the task at hand in case my explanation wasn't sufficient. I'm grateful to you for using list(generator) in your example. I was not aware this could be done (I haven't yet fully read the generator documentation). Rob C -- http://mail.python.org/mailman/listinfo/python-list
Most elegant way to generate 3-char sequence
Hi all, I wish to generate a sequence of the form 'aaa', 'aab', aac' 'aba', 'abb', 'abc' etc. all the way to 'zzz'. How would you construct a generator to acheive this? A simple, working but somewhat inelegant solution is... alpha = ['a','b','c','d'] #shortened for brevity alpha2 = ['a','b','c','d'] alpha3 = ['a','b','c','d'] def generator(): for char in alpha: for char2 in alpha2: for char3 in alpha3: yield char + char2 + char3 x = generate() x.next() # etc, etc, etc, -- http://mail.python.org/mailman/listinfo/python-list
Re: Standalone Python functions in UML?
Roman Susi wrote: Hi! Out of curiosity, how do I draw functions outside classes with UML? How module could be drawn in this case? I would say that within a class diagram, you can't. In other UML diagrams (such as sequence interaction), the function is simply used as if it were a method belonging to an object. If you need to make it clear where this function is located within the code, use a note on the diagram. Remember, UML is not able to accurately capture all implementation details of a system; It's not meant to. More theoretical question is if I create classes on the fly, how UML can reflect that? Again, don't try to depict fine-grained implementation details. If the dynamically generated class is important to the class diagram, include it but don't include all of it's internals (methods etc.). Use a note to exaplin how/when/why it is generated. (I know that Python code itself is best at communication design ideas, but there are some people which prefer to talk UML.) (Have not found anything relevant with google) Thanks! Regards, Roman Suzi Rob C -- http://mail.python.org/mailman/listinfo/python-list
Re: Installing PySQLite on OS X 10.4
Cheers. I should have read the installation notes more carefully :) Rob C -- http://mail.python.org/mailman/listinfo/python-list
Installing PySQLite on OS X 10.4
Hi all, I'm having difficulty installing pysqlite 2.1.3 on Mac OS X 10.4.4 There are some notes on the pysqlite wiki regarding modification of the setup.py script and I've followed them to no avail. Build and install appear to go smoothly but attempting to run the tests from the python interpreter fails. Likewise any attempt to utilise pysqlite2 in a python script fails. Has anyone here successfully installed it? If you have, do you have any pearls of wisdom that might help me out? Cheers, Rob C -- http://mail.python.org/mailman/listinfo/python-list
Re: Installing PySQLite on OS X 10.4
Fredrik Lundh wrote: Rob Cowie wrote: There are some notes on the pysqlite wiki regarding modification of the setup.py script and I've followed them to no avail. Build and install appear to go smoothly but attempting to run the tests from the python interpreter fails. Likewise any attempt to utilise pysqlite2 in a python script fails. it's might be a bit easier to help if you what you did when attempting to use the library, and how things failed. (if you get an ImportError, are you importing the right thing? where did the setup.py install step put the modules ? is that directory on the Python path ?) /F True... I should have included this stuff. the output from setup.py install indicates that an egg is constructed and copied to /Library/Python/2.3/site-packages/pysqlite-2.1.3-py2.3-macosx-10.4-ppc.egg. At the python prompt, I can import pysqlite2 with no problems. However, if I do from pysqlite2 import test as suggested after installation, I get the following traceback... Traceback (most recent call last): File stdin, line 1, in ? File pysqlite2/test/__init__.py, line 25, in ? from pysqlite2.test import dbapi, types, userfunctions, factory, transactions File pysqlite2/test/dbapi.py, line 26, in ? import pysqlite2.dbapi2 as sqlite File pysqlite2/dbapi2.py, line 32, in ? from pysqlite2._sqlite import * ImportError: No module named _sqlite If I view my site-packages dir in the Finder, the .egg file appears as a document, instead of a directory as is usually the case with .eggs. Perhaps this is an indication that the .egg file is not being built correctly? -- http://mail.python.org/mailman/listinfo/python-list
Re: Installing PySQLite on OS X 10.4
Gerhard Häring wrote: Rob Cowie wrote: [...] However, if I do from pysqlite2 import test as suggested after installation, I get the following traceback... Traceback (most recent call last): File stdin, line 1, in ? File pysqlite2/test/__init__.py, line 25, in ? from pysqlite2.test import dbapi, types, userfunctions, factory, transactions File pysqlite2/test/dbapi.py, line 26, in ? import pysqlite2.dbapi2 as sqlite File pysqlite2/dbapi2.py, line 32, in ? from pysqlite2._sqlite import * ImportError: No module named _sqlite [...] Apparently, you're doing this from the pysqlite sources root directory. So the pysqlite2 directory is tried, which does ont include the compiled C extension module. Execuring from any other working directory on your system should work fine. I'll have to check that this is all properly documented before I do the next pysqlite release. -- Gerhard Thanks however, now when I try from pysqlite2 import test it results in: Traceback (most recent call last): File stdin, line 1, in ? File build/bdist.darwin-8.5.0-Power_Macintosh/egg/pysqlite2/test/__init__.py, line 25, in ? File build/bdist.darwin-8.5.0-Power_Macintosh/egg/pysqlite2/test/dbapi.py, line 26, in ? File build/bdist.darwin-8.5.0-Power_Macintosh/egg/pysqlite2/dbapi2.py, line 32, in ? File build/bdist.darwin-8.5.0-Power_Macintosh/egg/pysqlite2/_sqlite.py, line 7, in ? File build/bdist.darwin-8.5.0-Power_Macintosh/egg/pysqlite2/_sqlite.py, line 6, in __bootstrap__ ImportError: dlopen(/Users/rob/.python-eggs/pysqlite-2.1.3-py2.3-macosx-10.4-ppc.egg-tmp/pysqlite2/_sqlite.so, 2): Symbol not found: _sqlite3_transfer_bindings Referenced from: /Users/rob/.python-eggs/pysqlite-2.1.3-py2.3-macosx-10.4-ppc.egg-tmp/pysqlite2/_sqlite.so Expected in: dynamic lookup I now suspect that this may all be down to the version of sqlite3 installed as part of OS X 10.4. Some people report success when using this version with pysqlite, others report failure. -- http://mail.python.org/mailman/listinfo/python-list
Re: Separating elements from a list according to preceding element
Thanks everyone. I assumed there was something I had not considered... list slicing is that thing. The pyParsing example looks interesting - but for this case, a little too heavy. It doesn't really warrant including a third party module. Rob C -- http://mail.python.org/mailman/listinfo/python-list
Separating elements from a list according to preceding element
I'm having a bit of trouble with this so any help would be gratefully recieved... After splitting up a url I have a string of the form 'tag1+tag2+tag3-tag4', or '-tag1-tag2' etc. The first tag will only be preceeded by an operator if it is a '-', if it is preceded by nothing, '+' is to be assumed. Using re.split, I can generate a list that looks thus: ['tag1', '+', 'tag2', '+', 'tag3', '-', 'tag4'] I wish to derive two lists - each containing either tags to be included, or tags to be excluded. My idea was to take an element, examine what element precedes it and accordingly, insert it into the relevant list. However, I have not been successful. Is there a better way that I have not considered? If this method is suitable, how might I implement it? Thanks all, Rob Cowie -- http://mail.python.org/mailman/listinfo/python-list
Re: good library for pdf
Take a look at www.reportlab.org. The ReportLab library includes a graphics module that might well do what you need. I'm not sure at present if it allows one to set alpha-channels to achieve transparency. Also, if you have access to a mac running OS X 10.4, the Automator application has a prebuilt action that applies a watermark to pdfs. Transparency, size and placement are all editable. Obviously, no use if you want to do this with Python, but it might suit your needs. Rob C -- http://mail.python.org/mailman/listinfo/python-list
Re: Using CGI to interface with an XML-RPC server
Please? I really could do with some help! -- http://mail.python.org/mailman/listinfo/python-list
Re: Using CGI to interface with an XML-RPC server
Python ships with cgi and xmlrpc support (cgi and xmlrpclib, respectively), so I'm not sure why you even think you have to ask... 1. use cgi to parse form data 2. use xmlrpclib to issue request 3. use print or your favourite html templating library to generate output (it might be a good idea to check with your web server admins, though, to make sure they don't have a problem with outgoing HTTP requests) So it is possible. I'm aware of cgi and xmlrpc modules. The reason I have asked is that there appears to be much difficulty when tying these two things together. I also wanted to see if anyone mentioned CGIXMLRPCserver which is part of the stdlib. I am unsure if this is what I am looking for. I have been unable to fully comprehend the documentation. Thanks for your help. -- http://mail.python.org/mailman/listinfo/python-list
Using CGI to interface with an XML-RPC server
Hi all, Assume I have a working XML-RPC server that runs persistently and correctly accepts remote calls, executes the relevant code and outputs the XML-RPC result. This is fine when using an XML-RPC client. However, I wish to provide a web user interface. I gather it is possible to use PHP as an XML-RPC client but I am unable to do so because of artificially imposed server constraints. All I am able to use is good the old CGI. Is it possible to create python CGI scripts that accept form data in the usual way, package them as an XML-RPC request, call the server, receive the response then format this response into valid HTML to be emitted to the client? Is this desirable (what I mean is... is there an easier way?). Is there a better way to use a web browser as what is essentially an XML-RPC client? FYI, I know that is seems like using XML-RPC in this case is pointless.. it isn't, some users do indeed use the server as intended. Cheers, -- http://mail.python.org/mailman/listinfo/python-list
Re: chi-squared tests in python?
Matthew ps: given the batteries included philosphy, there's a remarkable dearth of stats in python... I think Chi^2 tests fall distinctly in the third-party library category, myself. I don't know... I've often thought the Standard Library should include a stats package. -- http://mail.python.org/mailman/listinfo/python-list
Invoking Unix commands from a Python app
Hi all, An idea popped into my head recently for an app that would track how much time a user spends in a particular piece of software (or at least, for how long an application is open). I'm assuming there is a way to do this via the command line and a unix app, although I haven't yet invesitgated it. My question is, can a command line application be invoked by a python program? If so, how does one pass parameters to it and retrieve its response? Cheers and Merry Christmas, Rob Cowie -- http://mail.python.org/mailman/listinfo/python-list
Re: Invoking Unix commands from a Python app
Excellent... just the thing I was looking for. Thanks. Does anyone know of a unix app that could be used to monitor the duration of processes etc.? Would 'top' do the trick? Rob C -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a Python mentor
I'll gladly give you a hand. I should point out - I'm no expert. I think I've reached a point a bit beyond yours; I learnt OO programming principles with java and have spent this last Summer learning python. I have a good grasp of it. If you want to get in touch, email rob_cowie AT mac DOT com -- http://mail.python.org/mailman/listinfo/python-list
Re: noob question Letters in words?
Well.. that put me in my place! Fredrik Lundh - I hadn't realised that 'is' does not test for equivalence. Thanks for the advice. -- http://mail.python.org/mailman/listinfo/python-list
Re: noob question Letters in words?
A string can be thought of as a tuple of characters. Tuples support membership testing thus... choice1 = raw_input( ) if '1' or 's' or 'S' in choice1: #do something elif '2' or 'e' or E' in choice1: #do something It doesn't seem to me to be a good idea; If the input is 'Start', option1 is executed, likewise if the input is 'Stop', or any other string with 's' in it. Perhaps a better idea is to present the user with a choice that cannot be deviated from, along the lines of... def main(): print 1.\tStart print 2.\tSomething Else print 3.\tStop x = raw_input() if x is '1': print 'Start' elif x is '2': print 'Something else' elif x is '3': print 'End' else: main() -- http://mail.python.org/mailman/listinfo/python-list
Re: GUI on Macintosh
FYI... the preinstalled python distributed with OS X 10.4 includes the Tk and wxPython GUI frameworks. I am unaware of how to get either of these installed on OS 9. -- http://mail.python.org/mailman/listinfo/python-list
Re: New project coming up...stay with Python, or go with a dot net language??? Your thoughts please!
Perhaps with the time saved by using Python instead of C# or some such, you could help to improve adodbapi.py, ensuring support for the next version of MS SQLServer, although that might be of little help in the short term. Just a thought. Also, have a gander at http://www.object-craft.com.au/projects/mssql/ I have no knowledge of it, but it may prove useful to you. -- http://mail.python.org/mailman/listinfo/python-list
Barcode Recognition
I'd like to be able to take a bitmapped image and identify and decode any barcodes present within it. Does anyone know of an existing module for accomplishing this task? Is there any effort to add this functionality to the Python Imaging Library? Can anyone give me an idea of how diffucult an undertaking this is for someone with no image processing experience? Cheers, Rob Cowie -- http://mail.python.org/mailman/listinfo/python-list
Creating BibTex files with XdkBibTeX
I'm looking for a module that is able to create valid BibTex documents. I'm currently using string substitution to create the content, but it is not validated in any way. The only BibTex creation module available in Python (that I can find) is XdkBibTeX (http://artis.imag.fr/Membres/Xavier.Decoret/resources/xdkbibtex/). It is a python wrapper around a C library. Has anyone used this? More interestingly to me... has anyone successfully installed it on Mac OS X? Also, can anyone suggest an alternative? Cheers, Rob Cowie -- http://mail.python.org/mailman/listinfo/python-list
Retrieving Filename from Path
Hi, Given a string representing the path to a file, what is the best way to get at the filename? Does the OS module provide a function to parse the path? or is it acceptable to split the string using '/' as delimiters and get the last 'word'. The reason I'm not entirely happy with that method is that it is platform specific. I would prefer to use a built in method if possible. Cheers, Rob Cowie -- http://mail.python.org/mailman/listinfo/python-list
Re: Retrieving Filename from Path
Thanks, os.path.basename(filePath) it is then. BTW, the help(module) function is new to me! Must have missed it when reading the tutorial. Cheers! -- http://mail.python.org/mailman/listinfo/python-list
Re: Web frame systems vs. pure Python
I don't know what your project is, but a web framework might make your system more scalable and maintainable if it gets larger. They often provide useful mechanisms for maintaining state and persistance. Template systems IMHO should be considered separately from App frameworks (although they may be integrated). If you will frequently be rendering web pages that are predominantly static but augmented with dynamically generated/retrieved data, templates are a good way to go. However, they can confuse if your system is only simple. In that case, I wouldn't go for a full blown templating engine but 'roll my own' using python dictionaries and 'string interpolation' (a daft name as it isn't really interpolation). Furthermore, app frameworks are sometimes a pain to install on a webserver, particularly if you do not have control of it. It all depends on your project size, your willingness to spend some serious time climbing the learning curve associated with a framework, and the server you wish to deploy on. -- http://mail.python.org/mailman/listinfo/python-list
Separation of Code in CGI App
Hi, I need to create a planner/calendar system using python cgi scripts. It is my first CGI app (beyond a few tutorial examples). I wish to separate the code according to function. For instance, the code to handle the DB connection, SQL querying, HTML form variable retrieval, rendering of HTML via some sort of template system etc. Each will be a class instantiated when the CGI app is called. To do this, do I just create each of these classes in one, monolithic .cgi file? or is it possible to separate these out into different scripts and have a 'controller' script call them and pass the relevant parameters/data? I guess I could also store the python code in text files and use the 'execfile()' function, although it seems to me that would be an uneccasary performance hit. If that is possible, is that the right way to go? If not, suggestions would be gratefully recieved! -- http://mail.python.org/mailman/listinfo/python-list
Re: is this possible?
Yeah, Acrobat Reader is for viewing PDF's, not creating them. See http://www.reportlab.org/ for a couple of mature PDF libraries. -- http://mail.python.org/mailman/listinfo/python-list
Re: Separation of Code in CGI App
So, do I separate out whatever code I want to into .py modules, then have the cgi script import them, and utilise them as required? If so, do I need to put these modules somewhere described in the System Path? Can I modify the PATH at runtime to point to my modules? How? Cheers for being patient! -- http://mail.python.org/mailman/listinfo/python-list
Re: Separation of Code in CGI App
Thanks, I have run through the tutorial - very good. One day, I'd like to try and organise a similar tutorial involving CGI programming. There are several very basic examples, but they leave plenty of unanswered questions such as how to best structure a cgi app, apache permissions, etc So to be clear, if a .py module is in the same directory as my python cgi script, I can import it thus 'import XXX.py'? -- http://mail.python.org/mailman/listinfo/python-list
Re: Create our own python source repository
I'm not entirely sure what the point of your exercise is - if you have access to the net, ,why do you want to collate code examples? They are frequently updated in the cookbook so an offline repository would quickly become out of date. However you've aroused my interest in something related. We all know Python is significantly easier for novice programmers to grasp than, say, Java - I too am a newbie who started at uni with java and wished I hadn't. Tutorials are great, self paced learning is great, BUT, for the complete beginner a well structured, offline course with examples, exercises, tips etc. would be a brilliant resource. Python would fit the bill as a demonstration language to teach Object Orientation, flow control statements, other common constructs etc. A quick canvas of some IT teachers I know indicates support for such a thing - perhaps even in secondary shools (pre-uni). What does everyone think it would take to start such a project, and distribute it? or has it been done already? -- http://mail.python.org/mailman/listinfo/python-list
Re: Information about Python Codyng Projects Ideas
Ha, I've just headed over here to ask the same thing! Any good ideas not listed on the wiki? I too am taking a Masters in Computer Science, however my first degree was not purely CS - mostly microbiology, so I'm not yet what one would call an expert Cheers -- http://mail.python.org/mailman/listinfo/python-list
Re: Newbie Here
As a relalative newbie myself I think I can say Python is used for anything any major programming language is used for. One of its many strengths is scalability - it can be used to great effect as a scripting language AND as an object oriented language for creating large, GUI apps. Yours is not an easy question to answer - there are as many uses for python as there are 'computing tasks'. Go to http://www.awaretek.com/tutorials.html for a load of tutorials and examples -- http://mail.python.org/mailman/listinfo/python-list
Re: Help with choice of suitable Architecture
Thanks for the comments. I kind of get the impression that CGI is the way to go for this application, and that I should forget about adding client-side scripting based functionality for the sake of accessibility - which I understand and kind of agree with. I'll look into the problem of concurrent access to an XML file. I may get back to the group about this! Cheers -- http://mail.python.org/mailman/listinfo/python-list
Help with choice of suitable Architecture
Hi, This is my first post so go easy! I have been asked (as part of an MSc project) to create a server based planner for a research group at my uni. It will have a web interface to interact with data stored in an XML document. Basic functionality is required such as viewing, searching, editing, creating and deleting entries for things such as paper submission deadlines, events, funding application deadlines. I would also like to use AJAX principles in the web interface. Additionaly, it must email a BibTex file once a month to a predetermined address. I'm totally new to web programming. I have been looking into the best way to proceed. CGI is of course an option but it seems slow, clunky and outdated. Twisted provides a rich architecture but might be overkill. Nevow seems to be very popular. I suspect I could achieve what I want using PHP but I would really like to get to grip with Python. I'm not asking for a comparison of each architecture per se that seems to be well covered in this group. I would like to know how you all would set about creating this realtively simple application. Cheers, Rob Cowie Coventry University, Britain -- http://mail.python.org/mailman/listinfo/python-list
Re: Help with choice of suitable Architecture
I agree with the sentiments that a single XML file is not the way to go for storing data that may be accessed concurrently. However, my hands are tied. It seems that CGI is likely to be the most straightforward option. Is the learning curve likely to be steeper for pure CGI or a web application architecture such as Nevow? Paul. I agree that client-side scripting increases the level of compexity, but did it really go out of fashion with pop-ups? It seems to be just getting started. Google use it to great effect maps, suggest etc. I wasn't thinking of using it to deal with any 'business logic', just to add some dynamism to the interface - use XMLhttprequests, a bit of DOM scripting etc. -- http://mail.python.org/mailman/listinfo/python-list
