Re: What is print? A function?
Is it possible to create own statements, such that it would be possible to do: printDebug test ? This question is well addressed in a neighbour group comp.lang.lisp . -- http://mail.python.org/mailman/listinfo/python-list
cgi.py?
Hi,
I've looked into cgi.py from 2.4's distribution, and its contents
puzzle me. In parse_header, the first line splits on ';':
plist = map(lambda x: x.strip(), line.split(';'))
but header parameters may contain semicolon in quoted strings:
Content-Type: image/jpeg; filename=home:lib;images;face.jpg
and headers like this one will be parsed incorrectly. A few subsequent
lines unquote a quoted value, but the only place where quoted-string
production is defined is RFC 3875, and there is no quote escaping in
the production (nor in any other draft or related RFC). So, even if the
former is fixed, the latter will still prevent headers like
Content-Type: text/plain; filename=c:\files\; title=My Files
from being parsed correctly. What am I missing?
David
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Re: What is different with Python ? (OT I guess)
Oh well, I guess it's a bit late to try to rename the Computer Science discipline now. The best I've heard is Informatics -- I have a vague impression that this is a more European name for the field. The word Informatics had been invented by a Soviet computer scientist Andrey Ershov several decades ago as a name for his view on Information Theory. In Russian, it is , Informatika, by analogy with Mathematics, . It is widely used ever since both in russian-language literature and in many other languages and countries. It is a better name than either Information Theory or Computer Science for the discipline. -- http://mail.python.org/mailman/listinfo/python-list
Re: FAQ 1.7.3 : How can I have modules that mutually import each other
Needs??? Sorry to be blunt, but this is an intrinsically ludicrous concept, in *any* language. The whole idea of modules is (wait for it) modularity. A imports B which imports A is an utter nonsense. There is such a thing called 'recursion'. Self-recursion is when function x calls itself to execute the same action on a partial result of its previous invocation. This technique is a natural expression of what such ugly constructs as for and while are for in some programming languages. Indirect recusion is when function x calls y, and function y calls x. It is often happens in state automata. A static equivalent of indirect recursion is dependencies between declarations, when declaration x depends on y, and declaration y depends on x. Imagine a design of a literate programming environment, where both documentation and text are structured, and either can contain the other. A natural design for that is to have two modules, one implementing the parser for documentation, the other implementing the parser for code, each referencing the other so that both parsers can call each other when they need to switch context. In a well-designed programming language, circular intermodule dependencies are normal, because this is a natural high-level abstraction to express such relations. Because of primitive implementation of modular system in Python, circular dependencies are not possible, and things which are normally done automatically in a higher-level language, need to be coded manually in Python. In particular, to bypass this deficiency of Python for a problem similar to one described above, one has to define base classes for each of the two parsers, and make the implementations depend on the other implementation's base class, not on itself, thus splitting the interface and the implementation where it is not only unnecessary but outright wrong if clean design is taken into consideration. I'd wish a cleaner and more consistent implementation of packages existed in Python; but unfortunately too many things in current Python are far from being on the level a modern programming language (such as Common Lisp, for example) demands. David Tolpin http://davidashen.net/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem with national characters
Is there a way around this problem?
put
import sys
sys.setdefaultencoding('UTF-8')
into sitecustomize.py in the top level of your PYTHONPATH .
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Re: pyvm -- faster python
I don't think Python can ever beat carefully coded C for running speed, but it can and should aim for parity with compiled Lisp. But common lisp compilers often beat C compilers in speed for similar tasks of moderate complexity. In particular, CMUCL beats GCC in numerical computations. David -- http://mail.python.org/mailman/listinfo/python-list
Re: Python features
There are three main types of programming languages. * Imperative * Functional * Declarative animals are divided into: * those that belong to the Emperor, * embalmed ones, * those that are trained, * suckling pigs, * mermaids, * fabulous ones, * stray dogs, * those included in the present classification, * those that tremble as if they were mad, * innumerable ones, * those drawn with a very fine camelhair brush, * others, * those that have just broken a flower vase, * those that from a long way off look like flies. -- http://mail.python.org/mailman/listinfo/python-list
