Python information and short questions megathread.

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TOO SCSI FOR MY CAT: Oct 12, 2008; this is what happens when you take UI design away from engineers and give it to a bunch of hipster art student "designers"

Avenging Dentist posted:

Or just, you know, use a set.

# ? Aug 29, 2009 21:36

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# ? Jun 11, 2024 19:44

fritz: Jul 26, 2003

UnNethertrash posted:

If you have a list that you know is sorted, is there a built in way to efficiently search the list?

For example, say I have a list of primes under 1 million in ascending order, and I want to check a number to see if it's prime.

I'm not very good at programming, but I know how to write a binary search. However, I think that a) there are probably even faster ways to search, b) python would have something built in.

Thanks in advance.

The primes are more or less evenly distributed so you should be able to do better than binary search with some guessing and arithmetic.

Actually a million isn't all that big, just make a list of True and False and blammo you have an O(1) algorithm.

# ? Aug 29, 2009 22:53

UnNethertrash: Jun 14, 2007; The Trashman Cometh

Avenging Dentist posted:

Or just, you know, use a set.

What do you mean? Set is unordered, it only prevents repeats of any item. Does it have a built it binary search or something?

Ninja edit: I think I figured it out, if it's in the set it's prime. Is this fast?

Fritz: Do you mean setting it up so you just basically...

code:

return list_O_primes[number_I_want_to_test]

That actually seems brilliantly simple to me.

# ? Aug 30, 2009 00:56

Avenging Dentist: Oct 1, 2005; oh my god is that a circular saw that does not go in my mouth aaaaagh

UnNethertrash posted:

What do you mean? Set is unordered, it only prevents repeats of any item. Does it have a built it binary search or something?

"Unordered" doesn't mean what you think it means. I'm pretty sure Python sets use a hash table.

# ? Aug 30, 2009 01:18

king_kilr: May 25, 2007

Avenging Dentist posted:

"Unordered" doesn't mean what you think it means. I'm pretty sure Python sets use a hash table.

It does, it happens to be a very very fast hashset to boot. On simple numeric keyed hashsets I can often benchmark python as being faster than std::tr1::unoreded_set.

# ? Aug 30, 2009 01:44

Avenging Dentist: Oct 1, 2005; oh my god is that a circular saw that does not go in my mouth aaaaagh

king_kilr posted:

It does, it happens to be a very very fast hashset to boot. On simple numeric keyed hashsets I can often benchmark python as being faster than std::tr1::unoreded_set.

This is a stupid benchmark to make since there are already several completely separate implementations of unordered_set (or rather, it's a stupid assertion to make from a single benchmark).

# ? Aug 30, 2009 01:51

TOO SCSI FOR MY CAT: Oct 12, 2008; this is what happens when you take UI design away from engineers and give it to a bunch of hipster art student "designers"

UnNethertrash posted:

What do you mean? Set is unordered, it only prevents repeats of any item. Does it have a built it binary search or something?

Read the bold part, and think about what it means regarding searches for set membership.

# ? Aug 30, 2009 01:56

maskenfreiheit: Dec 30, 2004

...

maskenfreiheit fucked around with this message at 03:51 on Sep 29, 2010

# ? Aug 30, 2009 05:13

tef: May 30, 2004; -> some l-system crap ->

king_kilr posted:

On simple numeric keyed hashsets I can often benchmark python as being faster than std::tr1::unoreded_set.

For integers hash(n) = n in the python dictionary implementation*

quote:

Major subtleties ahead: Most hash schemes depend on having a "good" hash
function, in the sense of simulating randomness. Python doesn't: its most
important hash functions (for strings and ints) are very regular in common
cases:

>>> map(hash, (0, 1, 2, 3))
[0, 1, 2, 3]

^{* Except hash(-1) = -2}

# ? Aug 30, 2009 13:50

m0nk3yz: Mar 13, 2002; Behold the power of cheese!

GregNorc posted:

So I'm looking to learn python.

I have done a little scripting before, so I know what a loop is, what a variable is, etc. But usually what would happen is I'd pick up "Learning $language", get bored with stupid hello world BS and give up.

To rememdy this I've got two strategies.

First I'm using python. In addition to being pretty awesome, it's interpreted, so easier to get feedback.

Second, I designed my own little project: Making a game to teach people to count cards.

So I can start out with a simple command line blackjack program, add in all the extra stuff like doubling and splits, add in the card counting part, add in a gui, and pretty much learn most of the basic python syntax in the process.

I was just looking for ideas for books/sites to read for guidance when I get stuck.

Thanks.

The links in the op are still good. Dive Into Python (free online) and others are great resources.

# ? Aug 30, 2009 14:40

king_kilr: May 25, 2007

tef posted:

For integers hash(n) = n in the python dictionary implementation*

^{* Except hash(-1) = -2}

That's all true, however the speed of a hashtable implementation involves more than just the cost to hash something.

# ? Aug 30, 2009 17:19

tef: May 30, 2004; -> some l-system crap ->

It's not the only thing I just thought it was interesting :shobon:

# ? Aug 30, 2009 20:51

king_kilr: May 25, 2007

tef posted:

It's not the only thing I just thought it was interesting

Actually anything that hashes to -1 returns -2 for it's hash:

code:

>>> class A(object):
...     def __hash__(self):
...         return -1
...     
...     

>>> hash(A())
[2] -2

My guess is -1 is used internally as a "this failed" so it just translates -1 -> -2, no harm no foul

# ? Aug 30, 2009 21:28

maskenfreiheit: Dec 30, 2004

Edit: doublepost

maskenfreiheit fucked around with this message at 01:13 on Mar 13, 2017

# ? Aug 30, 2009 23:05

king_kilr: May 25, 2007

I'd just do:

code:

def create_deck():
    return [(suit, value) for suit in ('Hearts', 'Clubs', 'Spades', 'Diamonds') for value in xrange(1, 14)]

Or with nice whitespace:

code:

def create_deck():
    deck = []
    for suit in ('Hearts', 'Clubs', 'Spades', 'Diamonds'):
        for value in xrange(1, 14): # Ace (1) -> King (13)
            deck.append((suit, value))
    return deck

# ? Aug 30, 2009 23:20

ATLbeer: Sep 26, 2004; Über nerd

king_kilr posted:

I'd just do:

code:

def create_deck():
    return [(suit, value) for suit in ('Hearts', 'Clubs', 'Spades', 'Diamonds') for value in xrange(1, 14)]

code:

def create_deck():
    from random import shuffle
    deck = [(suit, value) for suit in ('Hearts', 'Clubs', 'Spades', 'Diamonds') for value in xrange(1, 14)]
    shuffle(deck)
    return deck

# ? Aug 31, 2009 00:17

Soviet Space Dog: May 7, 2009; Unicum Space Dog
May 6, 2009

NOBODY WILL REALIZE MY POSTS ARE SHIT NOW THAT MY NAME IS PURPLE

GregNorc posted:

Ok, quick question: can I make a list of lists in python?

Let me explain...

I'm making a blackjack program as a little project to help learn programming.

I'm writing the first function, called createDeck(), which will as you can probably guess, create the deck of cards.

This is how I planned to do it: I have two counters, one called cardCount, rankCount, and suitCount.

So I have a loop that goes through all the possible combinations, and at the end should have produced 52 cards (cards just being lists with two values: the first is 0-3 to denote suit, the other is 0-13 to denote rank.

Here's the psudocode I wrote out (I'm not concerned with syntax stuff yet, just wanna get the logic down):
code:
def createDeck():
        cardCount = 0
        rankCount = 0
        suitCount = 0

        while cardCount >= 51
                cardList[cardCount] = (rankCount, suitCount);
                suitCount = suit + 1;
                rankCount = rank + 1;
                if suit = 3 and rank = 13
                        break;
                if suit > 13
                        suit = 0;
                if rank > 4
                        rank = 0;
Thoughts?

Use nested for loops. There is no reason to use a while loop since you are basically iterating through fixed sets.

# ? Aug 31, 2009 01:19

tripwire: Nov 19, 2004; _{ghost flow}

Soviet Space Dog posted:

Use nested for loops. There is no reason to use a while loop since you are basically iterating through fixed sets.

Or even better (and more pythonic), use the list comprehension ATLBeer posted above

# ? Aug 31, 2009 03:21

DICTATOR OF FUNK: Nov 6, 2007; aaaaaw yeeeeeah

Does anyone know if PIL supports the creation of animated GIFs?

I'm creating a small command line utility for a buddy that will input a small image, make it a two-frame animated GIF with one frame that has a single pixel with a slight coloration difference for import into Windows Live Messenger as an emoticon (the point of doing so prevents WLM from distorting the emoticon by automatically resizing it).

If PIL isn't the best imaging library for this sorta thing, any recommendations for something better would be great.

# ? Sep 1, 2009 01:14

Scaevolus: Apr 16, 2007

root beer posted:

Does anyone know if PIL supports the creation of animated GIFs?

I'm creating a small command line utility for a buddy that will input a small image, make it a two-frame animated GIF with one frame that has a single pixel with a slight coloration difference for import into Windows Live Messenger as an emoticon (the point of doing so prevents WLM from distorting the emoticon by automatically resizing it).

If PIL isn't the best imaging library for this sorta thing, any recommendations for something better would be great.

A bit of searching led me to http://sites.google.com/site/almarklein/files-1/images2gif.py , which should show you what you want.

# ? Sep 1, 2009 01:17

DICTATOR OF FUNK: Nov 6, 2007; aaaaaw yeeeeeah

Scaevolus posted:

A bit of searching led me to http://sites.google.com/site/almarklein/files-1/images2gif.py , which should show you what you want.

Boy I feel dumb, I came across that very same thing and disregarded it for some reason I can't seem to recall. :downs:

Thanks!

# ? Sep 1, 2009 01:30

ShizCakes: Jul 16, 2001; BANNED

I'm having a bit of trouble daemonizing a script.

I found a couple of examples online, and am using this one because I felt like I understood it:

http://www.enterpriseitplanet.com/networking/features/article.php/11315_3786386_1

code:

import sys, os
def daemonize (stdin='/dev/null', stdout='/dev/null', stderr='/dev/null'):
    # Perform first fork.
    try:
        pid = os.fork()
        if pid > 0:
            sys.exit(0) # Exit first parent.
    except OSError, e:
        sys.stderr.write("fork #1 failed: (%d) %sn" % (e.errno, e.strerror))
        sys.exit(1)
    # Decouple from parent environment.
    os.chdir("/")
    os.umask(0)
    os.setsid()
    # Perform second fork.
    try:
        pid = os.fork()
        if pid > 0:
            sys.exit(0) # Exit second parent.
    except OSError, e:
        sys.stderr.write("fork #2 failed: (%d) %sn" % (e.errno, e.strerror))
        sys.exit(1)
    # The process is now daemonized, redirect standard file descriptors.
    for f in sys.stdout, sys.stderr: f.flush()
    si = file(stdin, 'r')
    so = file(stdout, 'a+')
    se = file(stderr, 'a+', 0)
    os.dup2(si.fileno(), sys.stdin.fileno())
    os.dup2(so.fileno(), sys.stdout.fileno())
    os.dup2(se.fileno(), sys.stderr.fileno())

Calling the above from my script properly causes the script to be daemonized. My problem is that when I modify stdout and stderr above to be something like /tmp/butts.log, the file is created - and no output is sent to it. The file remains 0 bytes.

Redirecting stdout to a file within my main script (when NOT daemonized) works fine. For example:

code:

sys.stdout = open("butts.log", "a")

When I call daemonize, the same thing happens - the file is created, but nothing is added to it.

Commenting out the entire block in the daemon script after "# The process is now daemonized" does not seem to affect whether or not stdout redirection is working within my main script when daemonized.

The script otherwise functions normally.

I'm really confused. I know nothing about how stdout and stderr work with filedescriptors, or the proper procedure for dealing with them. If it matters, this is on CentOS 5.3.

ShizCakes fucked around with this message at 19:51 on Sep 1, 2009

# ? Sep 1, 2009 19:49

ShizCakes: Jul 16, 2001; BANNED

ShizCakes posted:

I'm having a bit of trouble daemonizing a script.

Calling the above from my script properly causes the script to be daemonized. My problem is that when I modify stdout and stderr above to be something like /tmp/butts.log, the file is created - and no output is sent to it. The file remains 0 bytes.

Redirecting stdout to a file within my main script (when NOT daemonized) works fine. For example:
code:
sys.stdout = open("butts.log", "a")
When I call daemonize, the same thing happens - the file is created, but nothing is added to it.

Commenting out the entire block in the daemon script after "# The process is now daemonized" does not seem to affect whether or not stdout redirection is working within my main script when daemonized.

The script otherwise functions normally.

I'm really confused. I know nothing about how stdout and stderr work with filedescriptors, or the proper procedure for dealing with them. If it matters, this is on CentOS 5.3.

After waiting a long time, I noticed that it was outputting things in 4K blocks. That lead me to suspect that there was buffering occuring of sys.stdout - and there was!

Not sure why it was happening when daemonized but seemingly not when not daemonized, but the answer to my woes was found here:

http://stackoverflow.com/questions/107705/python-output-buffering

# ? Sep 1, 2009 20:27

bitprophet: Jul 22, 2004; Taco Defender

ShizCakes posted:

After waiting a long time, I noticed that it was outputting things in 4K blocks. That lead me to suspect that there was buffering occuring of sys.stdout - and there was!

Not sure why it was happening when daemonized but seemingly not when not daemonized, but the answer to my woes was found here:

http://stackoverflow.com/questions/107705/python-output-buffering

Yup, stdout buffering is one of those things you inevitably run into and then (hopefully) never forget about afterwards. I sort of wish it was highlighted more in tutorials, aside from the "learn to program!" tutorials where it would be a bit much.

In these situations I often find myself just making a stupid little subroutine that does the flushing; outright replacing sys.stdout like in that SO thread is a more complete solution, at the expense of loving around with internals (i.e. and possibly surprising coders who come after you and aren't expecting it.) It's sometimes necessary, though

# ? Sep 1, 2009 20:36

ATLbeer: Sep 26, 2004; Über nerd

code:

null-0023322e1568:Jinja2-2.1.1 ag$ python setup.py clean
running clean
removing 'build/temp.macosx-10.3-i386-2.5' (and everything under it)
null-0023322e1568:Jinja2-2.1.1 ag$ python setup.py build
running build
running build_py
running build_ext
building 'jinja2._speedups' extension
creating build/temp.macosx-10.3-i386-2.5
creating build/temp.macosx-10.3-i386-2.5/jinja2
gcc -arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -fno-strict-aliasing -Wno-long-double -no-cpp-precomp -mno-fused-madd -fno-common -dynamic -DNDEBUG -g -O3 -I/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5 -c jinja2/_speedups.c -o build/temp.macosx-10.3-i386-2.5/jinja2/_speedups.o
cc1: error: unrecognized command line option "-Wno-long-double"
cc1: error: unrecognized command line option "-Wno-long-double"
lipo: can't figure out the architecture type of: /var/folders/fg/fgp4uHqFH7G2xxpI5rZskE+++TI/-Tmp-//ccF4iEOX.out
error: command 'gcc' failed with exit status 1

Hmmm... I had jinja2 installed and working on Leopard but, after my Snow Leopard upgrade it didn't exist and now I can't seem to build it.

Any pointers?

(Also just checked out latest version from jinja's mercurial and get the same error)

eh... oh well: python setup.py --without-speedups install

that works

OK... This is now a reoccurring problem. Seems like Snow Leopard and distutils might not get along

Fabric just failed in the exact same way (with installing pycrypto)

ATLbeer fucked around with this message at 22:31 on Sep 2, 2009

# ? Sep 2, 2009 22:13

good jovi: Dec 11, 2000

You need to reinstall XCode after installing Snow Leopard.

EDIT: upon actually reading your code, maybe not. it looks like you have gcc, but it just isn't working. Still, if you haven't, do so.

# ? Sep 2, 2009 23:16

ATLbeer: Sep 26, 2004; Über nerd

Sailor_Spoon posted:

You need to reinstall XCode after installing Snow Leopard.

EDIT: upon actually reading your code, maybe not. it looks like you have gcc, but it just isn't working. Still, if you haven't, do so.

Yeah.... I reinstalled XCode, then reinstalled it w/ 10.4 support... Dunno why

Neither made a difference

# ? Sep 2, 2009 23:47

Xenos: Jun 17, 2005

ATLbeer posted:

Hmmm... I had jinja2 installed and working on Leopard but, after my Snow Leopard upgrade it didn't exist and now I can't seem to build it.

Any pointers?

I haven't used Snow Leopard yet, but I'm going to guess that it has a 64-bit build of Python. Try this before installing:

code:

export ARCHFLAGS='-arch i386 -arch x86_64'

# ? Sep 3, 2009 00:43

m0nk3yz: Mar 13, 2002; Behold the power of cheese!

ATLbeer posted:

Yeah.... I reinstalled XCode, then reinstalled it w/ 10.4 support... Dunno why

Neither made a difference

You're using the default python2.6.1 installation, right? Not something left over from installing python2.6 from python.org? I had no problems pulling in Jinja2, which is a dep of sphinx

# ? Sep 3, 2009 01:50

ATLbeer: Sep 26, 2004; Über nerd

m0nk3yz posted:

You're using the default python2.6.1 installation, right? Not something left over from installing python2.6 from python.org? I had no problems pulling in Jinja2, which is a dep of sphinx

You just made me double check... My work Mac I have 2.5 installed and on my home laptop I have 2.6.1

Both fail in the exact same way.

code:

jinja2/_speedups.c:207: error: �NULL� undeclared here (not in a function)
lipo: can't figure out the architecture type of: /var/folders/By/ByGfXc-8E4ioG4y175OkS++++TI/-Tmp-//ccVCjqFs.out
error: Setup script exited with error: command 'gcc' failed with exit status 1

# ? Sep 3, 2009 03:51

ATLbeer: Sep 26, 2004; Über nerd

Xenos posted:

I haven't used Snow Leopard yet, but I'm going to guess that it has a 64-bit build of Python. Try this before installing:
code:
export ARCHFLAGS='-arch i386 -arch x86_64'

code:

src/hash_template.c:221: error: (near initialization for �ALG_functions[1].ml_meth�)
lipo: can't figure out the architecture type of: /var/folders/By/ByGfXc-8E4ioG4y175OkS++++TI/-Tmp-//ccPFZu5P.out
error: Setup script exited with error: command 'gcc' failed with exit status 1
axx$ export | grep AR
declare -x ARCHFLAGS="-arch i386 -arch x86_64"
axx:~ a$

ATLbeer fucked around with this message at 04:00 on Sep 3, 2009

# ? Sep 3, 2009 03:53

Xenos: Jun 17, 2005

ATLbeer posted:

Are you trying to install as sudo? If so, pass it through like this:

code:

sudo env ARCHFLAGS="-arch i386 -arch x86_64" <your install command>

I don't really want to keep guessing, though. I'll try to install Jinja2 on my work machine in the morning, and let you know if I come up with anything.

# ? Sep 3, 2009 04:11

ATLbeer: Sep 26, 2004; Über nerd

Xenos posted:

Are you trying to install as sudo? If so, pass it through like this:
code:
sudo env ARCHFLAGS="-arch i386 -arch x86_64" <your install command>
I don't really want to keep guessing, though. I'll try to install Jinja2 on my work machine in the morning, and let you know if I come up with anything.

http://pastebin.com/f6c96dcfa

And I do have XCode installed, latest version I believe [3.2 (1610)]

# ? Sep 3, 2009 04:32

m0nk3yz: Mar 13, 2002; Behold the power of cheese!

ATLbeer posted:

http://pastebin.com/f6c96dcfa

And I do have XCode installed, latest version I believe [3.2 (1610)]

I can confirm that on Snow Leopard, fresh install - no ARCHFLAGS set and the xcode that ships with leopard, it installs OK:

code:

bot:~ jesse$ mkvirtualenv jinja-test
New python executable in jinja-test/bin/python
Installing setuptools............done.
(jinja-test)bot:~ jesse$ cd ~/Downloads/
(jinja-test)bot:Downloads jesse$ tar -xzf Jinja2-2.1.1.tar.gz 
(jinja-test)bot:Downloads jesse$ cd Jinja2-2.1.1
(jinja-test)bot:Jinja2-2.1.1 jesse$ python setup.py install
running install
running bdist_egg
running egg_info
writing requirements to Jinja2.egg-info/requires.txt
writing Jinja2.egg-info/PKG-INFO
writing top-level names to Jinja2.egg-info/top_level.txt
writing dependency_links to Jinja2.egg-info/dependency_links.txt
writing entry points to Jinja2.egg-info/entry_points.txt
reading manifest file 'Jinja2.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
warning: no files found matching 'Makefile'
warning: no files found matching 'ez_setup.py'
warning: no previously-included files matching '*' found under directory 'docs/_build/doctrees'
writing manifest file 'Jinja2.egg-info/SOURCES.txt'
installing library code to build/bdist.macosx-10.6-universal/egg
running install_lib
running build_py
creating build
...snip...
Processing Jinja2-2.1.1-py2.6-macosx-10.6-universal.egg
creating /Users/jesse/.virtualenvs/jinja-test/lib/python2.6/site-packages/Jinja2-2.1.1-py2.6-macosx-10.6-universal.egg
Extracting Jinja2-2.1.1-py2.6-macosx-10.6-universal.egg to /Users/jesse/.virtualenvs/jinja-test/lib/python2.6/site-packages
Adding Jinja2 2.1.1 to easy-install.pth file

Installed /Users/jesse/.virtualenvs/jinja-test/lib/python2.6/site-packages/Jinja2-2.1.1-py2.6-macosx-10.6-universal.egg
Processing dependencies for Jinja2==2.1.1
Finished processing dependencies for Jinja2==2.1.1
(jinja-test)bot:Jinja2-2.1.1 jesse$

You should be pointing at /usr/bin/python - also, do you have MACOSX_DEPLOYMENT_TARGET= exported in your environment at all?

# ? Sep 3, 2009 14:21

ATLbeer: Sep 26, 2004; Über nerd

m0nk3yz posted:

I can confirm that on Snow Leopard, fresh install - no ARCHFLAGS set and the xcode that ships with leopard, it installs OK:

[code]
You should be pointing at /usr/bin/python - also, do you have MACOSX_DEPLOYMENT_TARGET= exported in your environment at all?

$ which python
/Library/Frameworks/Python.framework/Versions/Current/bin/python
$ export | grep MACOSX

Is this this the default config?

The follow up I guess is how do I regress to the standard install without blowing away my install

ATLbeer fucked around with this message at 16:37 on Sep 3, 2009

# ? Sep 3, 2009 16:10

m0nk3yz: Mar 13, 2002; Behold the power of cheese!

ATLbeer posted:

$ which python
/Library/Frameworks/Python.framework/Versions/Current/bin/python
$ export | grep MACOSX

Is this this the default config?

The follow up I guess is how do I regress to the standard install without blowing away my install

code:

bot:~ jesse$ which python
/usr/bin/python
bot:~ jesse$ ls -lah /usr/bin/python
-rwxr-xr-x  2 root  wheel    84K Jul  8 02:57 /usr/bin/python
bot:~ jesse$

Do you have your $PATH set to /Library/Frameworks/Python.framework/Versions/Current/bin? I think the python.org tweaks your path - check your .bash_profile/.bashrc

In order to reset it, I think all you need to do is remove any custom $PATH settings and make sure you're pulling in /usr/bin python.

In fact - try that with the Jinja2 install - "/usr/bin/python setup.py install"

# ? Sep 3, 2009 19:36

duneriver: Mar 20, 2009; by Fistgrrl

Hi, beginner coder here so any help would be much appreciated for Python 3.1.1:

#A simple program.
print ("Mary had a little lamb,")
print ("it's fleece was white as snow;")
print ("and everywhere that Mary went")
print ("her lamb was sure to go.")

Output:

Mary had a little lamb,
it's fleece was white as snow;
and everywhere that Mary went
her lamb was sure to go.

------------

In the above, how do I recode so the last 2 lines run into each other without a line break? I remember it involving '\' somehow, but I can't get it to work with the 'print' function.

Also, is there any important difference between using ' and " to enclose strings?

duneriver fucked around with this message at 10:38 on Sep 4, 2009

# ? Sep 4, 2009 09:25

deimos: Nov 30, 2006; Forget it man this bat is whack, it's got poobrain!

duneriver posted:

In the above, how do I recode so the last 2 lines run into each other without a line break? I remember it involving '\' somehow, but I can't get it to work with the 'print' function.

print("string", end="")

duneriver posted:

Also, is there any important difference between using ' and " to enclose strings?

' lets you embed " in them and " lets you embed ' in them!

# ? Sep 4, 2009 12:41

duneriver: Mar 20, 2009; by Fistgrrl

Thank you!

# ? Sep 6, 2009 17:25

Adbot: ADBOT LOVES YOU

# ? Jun 11, 2024 19:44

tef: May 30, 2004; -> some l-system crap ->

I made some stupid decorators:

code:

import inspect
import ast

def unparsed(f):
    return "".join(inspect.getsourcelines(f)[0][1:])

def uncompiled(f):
    return compile(unparsed(f),f.__code__.co_filename,'exec',ast.PyCF_ONLY_AST)

@unparsed
def id(x):
    return x

@uncompiled
def en(x):
    return x

print id
print ast.dump(en)

# ? Sep 6, 2009 17:39

The Something Awful Forums > Discussion > Serious Hardware/Software Crap > The Cavern of COBOL > Python information and short questions megathread.

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