Hi all. I've got a python file called 'foo' (no extension). I want to
be able to load it as a module, like so:
m = __import__('foo')
However, the interpreter tells me "No module named foo". If I rename
it foo.py, I can indeed import it. Is the extension required? Is there
any way to override th
> class Foo:
> foo = Foo()
>
> You have to live with that. Just do
> Outer.foo = Outer.Parent()
> after your class-statement to achieve the same result.
Hmmm. Well, I see why that works. It's too bad, though. If I want to
keep all executed code safely within a "if __name__ == '__main__'"
blo
I've got an interesting problem with my class hierarchy. I have an
outer class, in which two nested classes are defined:
class Outer:
class Parent:
def __init__ (self):
print "parent!"
class Child(Parent):
def __init__ (self):
Outer.Parent.__init__(self)
foo = Child()
No
> How about this?
> d = dict(tuples)
Aha! I hadn't realized it could be so simple.
--Steve
--
http://mail.python.org/mailman/listinfo/python-list
Let's say I've got a list of tuples, like so:
( ('a', '1'), ('b', '2'), ('c', '3')
And I want to turn it into a dictionary in which the first value of
each tuple is a key and the second value is a value, like so:
{ 'a' -> '1', 'b' -> '2', 'c' -> '3' }
Is there a way to do this with a single
> Yes, it's called a "list comprehension", and is many people's favourite
Awesome!
Thanks,
--Steve
--
http://mail.python.org/mailman/listinfo/python-list
I would like to translate the contents of a list. For instance, let's
say I've got a list of strings and I want to append "foo" to each
element. I might do the following;
list1 = ['a', 'b', 'c']
for i in range(0, len(list1)): list1[i] += 'foo'
Ok, that much works. But what if I don't want to
> What you can't do (that I really miss) is have a tree of assign-and-test
> expressions:
> import re
> pat = re.compile('some pattern')
> if m = pat.match(some_string):
> do_something(m)
Yep, this is exactly what I am (was) trying to do. Oh well Any
clever
Hi all. In C, an assignment statement returns the value assigned. For
instance:
int x
int y = (x = 3)
In the above example, (x=3) returns 3, which is assigned to y.
In python, as far as I can tell, assignment statements don't return
anything:
y = (x = 3)
The above example generates a Syn
> >>> import cStringIO
> >>> s = cStringIO.StringIO()
> >>> print >>s, [1, 2, 1.0/5, 'hello world']
> >>> s.getvalue()
Thanks--this works perfectly!
-_Steve
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I would like to get the results of a print operation placed in a
string. For instance, you can very easily create a list and print it
to stdout:
x = [1,2,3]
print x # Will print [1,2,3]
What if I want the text "[1,2,3]" placed in a string? For instance,
something like:
x = [1,2,3]
str =
Hi folks. I'm using os.popen() to run a command; according to the
documentation, the filehandle.close() oepration is suppsoed to return
the exit code. However, when I execute something like "exit 5",
close() returns 1280. Here's the code:
pipe = os.popen("exit 5")
print pipe.close() # prints 1
> import module
> from inspect import getmembers, isclass
> classes = getmembers(module, isclass)
Ok, this makes sense. How can I do it inside the .py file I'm working
on? That is, consider this:
class A:
pass
class B:
pass
import inspect
print inspect.getmembers(, inspect.isclass
> Take a look at the `issubclass()` function.
Ok, I see how to use issubclass(). How can I get a list of classes
present in the file?
--Steve
--
http://mail.python.org/mailman/listinfo/python-list
Let's say I have a python file with a base class, and a few derived
classes:
class Base:
pass
class Derived1(Base):
pass
class Derived2(Base):
pass
Is there a way I can find out the classes that have been derived from
Base?
Thanks,
--Steve
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http://mail.python.org/mailman/listinfo/pyt
I've got a Base class with an attribute "foo" (of type Foo), and a
Derived class (derived from Base). In Derived's constructor, I try to
refer to Base.foo, but python complains:
AttributeError: class Base has no attribute 'foo'
Any ideas? (code below)
=== CODE ===
#!/usr/bin/python
class Foo:
I'm working on learning how to use urllib2 to use a proxy server. I've
looked through the postings on this group, and it's been helpful. I
have not, however, found complete documentation on the add_password()
functions. Here's what I've got so far:
#
import
Ok, I'm trying to build libpython.a. It's version 1.5.2 (I know it's an
old version, but I need to get it to work if at all possible). I want
to find a way to make sure the module copy_reg is present in the
libpython.a. I know all about editing the Modules/Setup file to put in
additional modules, b
I'm trying to get the mcmillan installer utility to generate a
standalone executable for me. I've gotten to work--almost!--but still
have one problem. After running Installer's Build.py on my script/spec,
it appears to work. I go into the directory generating by Build.py and
run my program. It work
I'm getting started working with ZSI. I have a client script that looks
like this:
===
import ZSI.client
b = ZSI.client.Binding()
b.Send('http://...', 'verifyUserRegistered', '00:00:00:00:00:00')
===
When I run it, I get the following error:
==
I would like to distribute a python program, but only in .pyc form (so
that people cannot simply look at my code). Is there a way to do this?
I've read up a little on the logic by which python creates .pyc's, and
it sounds like python requires the main executed program to be in .py
format. Any idea
I'm working on building python 2.4.2 with the mingw compiler (on
cygwin). It runs into problems with Modules/posixmodule.c, because the
mingw compiler does *not* provide complex process management
functionality. I can exclude posixmodule.c from the python build
process, but gcc still fails when it
I'm working on building python 2.4.2 with the mingw compiler (on
cygwin). It runs into problems with Modules/posixmodule.c, because the
mingw compiler does *not* provide complex process management
functionality. I can exclude posixmodule.c from the python build
process, but gcc still fails when it
Ok, I'm working on building python 2.4.2 on cygwin. I *think* it's
version 3.0 or 3.1 (is there a quick way to find out what version of
cygwin is running within a shell?)
Anyway, it appears to 'configure' fine, but gcc reports a compile error
when it gets to posixmodule.c. Here's the first few lin
Is there a user manual for freeze.py?
--Steve ([EMAIL PROTECTED])
--
http://mail.python.org/mailman/listinfo/python-list
I'm working with the freeze utility, and I'm trying to learn the
basics. For the most part, I think I understand how it works. I have a
question about modules, though.
I want to make sure that my native executable is entirely standalone.
That is, it should have no dynamic linking. I've read throug
Good point I appreciate all the help, and apologize if I came
across badly. I'm definitely willing to put in the work to understand
all this, it's just that it's a lot of new modules for me and I'm a bit
overwhelmed. Sorry if I seemed impatient...
--
http://mail.python.org/mailman/listinfo/py
Ok, this looks really cool, but can you explain a little more
step-by-step what's going on? In the end, I need to have a single
python script that (1) contains the archive and (2) can extract that
archive. The example you've given is interesting, but it's not clear to
me how to create the actual py
Ok, this is a neat idea... The uu module deals with files though, not
strings. Is there a way in python to make a string act like a file
handle?
Example:
my_string = "uu-encoded-stuf.."
my_out_file_handle = ?? # What should this variable look like?
import uu
uu.decode(my_string, my_out_file_h
I want to find a way to embed a tar file *in* my python script, and
then use the tarfile module to extract it. That is, instead of
distributing two files (extractor.py and archive.tar) I want to be able
to distribute *one* file (extractor-with-embedded-archive.py). Is there
a way to do this?
Than
I'd like to do some basic SQL stuff in Python. It seems like there are
a heck of a lot of SQL modules for Python. What's the simplest and
easiest one to use?
Thanks,
--Steve ([EMAIL PROTECTED])
--
http://mail.python.org/mailman/listinfo/python-list
>This doesn't look like Python to me. Are you sure you're on the right
newsgroup?
Er, ok, I'm an idiot. This was all supposed to be on comp.lang.c++, but
obviously I posted on the wrong one. Sorry for all the hassle. In
python, this stuff is a heck of a lot easier.
--Steve
--
http://mail.pytho
>But, assuming you have your numbers as strings, I would suggest
looking
at str.split() and len().
Well, the numbers are in fact stored as numbers, so string processing
won't work.
>I'd give you an example, but this sounds kinda like a homework
assignment.
The task may sound like it comes from c
Ok, that won't work. First of all, str() is not a function. If I want
to convert the float into a string, the conversion function will have
to use some kind of numeric precision, which will screw things up.
Consider this:
float f = 1.004;
ostringstream s;
s << f;
cout << s.str();
The above code m
So how can I get the kind of information I want then?
For example:
0.103 --> 3
0.0103 --> 4
0.00103 --> 5
0.000103 --> 6
0.103 --> 7
Any ideas?
--Steve
--
http://mail.python.org/mailman/listinfo/python-list
Hi all... How can I find out the number of significant digits (to the
right of the decimal place, that is) in a double? At least, I *think*
that's what I'm asking for. For instance:
0.103 --> 3
0.0103 --> 4
0.00103 --> 5
0.000103 --> 6
0.103 --> 7
Thanks in advance!
--Steve ([EMAIL PROTECTED]
> Since the only official way to do this is pymingw, you should at
least
> give feedback of the steps you followed, and what didn't work
(1) I have Cygwin 5.1 with GCC 3.3.1 on it.
(2) I unzipped Python 2.4.
(3) I unzipped pyMinGW-24-0064.zip into that directory, overwriting the
appropriate files.
Ok, I know there are already a million posts on this group about
getting Python to build with MinGW. I've been through many of them, and
have still not found a good comprehensive way to accomplish this.
I've got Cygwin 5.1 with GCC 3.3.3 on it. I'm using Python 2.4.
Note: You invoke the mingwin c
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