I tried your suggestion but it does not work for me. I get a syntax error at use of the first question mark when trying it in Idle. When I try it from the desktop, it just flashes a black screen and returns me to the desktop. What is the question mark used for? I looked up the use of % and the glossary says it returns the modulus. I don't understand why I would want the modulus of anything. I like the idea of text = text because it allows me to more easily change my text. As long as I put text = "Your Score is : " + str( Game.score_value) the program works fine. Sorry I need further help Gene
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Tuesday, June 07, 2005 2:58 PM To: tutor@python.org Subject: Tutor Digest, Vol 16, Issue 21 Send Tutor mailing list submissions to tutor@python.org To subscribe or unsubscribe via the World Wide Web, visit http://mail.python.org/mailman/listinfo/tutor or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reach the person managing the list at [EMAIL PROTECTED] When replying, please edit your Subject line so it is more specific than "Re: Contents of Tutor digest..." Today's Topics: 1. repr() (Bernard Lebel) 2. Re: repr() (Max Noel) 3. Re: Text problem (Kent Johnson) 4. Re: repr() (Danny Yoo) 5. Re: More image manipulation (Terry Carroll) 6. Re: repr() (Terry Carroll) 7. Re: repr() (Bernard Lebel) 8. Re: Trying Ruby... (Christian Wyglendowski) 9. Re: More image manipulation (Terry Carroll) 10. Re: repr() (Danny Yoo) 11. Re: interactif or not (Alan G) 12. Fwd: More image manipulation (D. Hartley) ---------------------------------------------------------------------- Message: 1 Date: Tue, 7 Jun 2005 15:42:39 -0400 From: Bernard Lebel <[EMAIL PROTECTED]> Subject: [Tutor] repr() To: tutor@python.org Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=ISO-8859-1 Hello, Possibly I am missing something, but how do you use the repr() function? I type this ultra-simple function: def myFunc(): print 'hello' Then run repr( myFunc ) Wich returns '<function myFunc at 0x009C6630>' Okay then I run s = repr( myFunc() ) print s Wich returns 'None' Thanks Bernard ------------------------------ Message: 2 Date: Tue, 7 Jun 2005 20:50:51 +0100 From: Max Noel <[EMAIL PROTECTED]> Subject: Re: [Tutor] repr() To: Bernard Lebel <[EMAIL PROTECTED]> Cc: tutor@python.org Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed On Jun 7, 2005, at 20:42, Bernard Lebel wrote: > repr( myFunc ) > > Wich returns > > '<function myFunc at 0x009C6630>' > > > Okay then I run > > s = repr( myFunc() ) > print s > > Wich returns > > 'None' That's perfectly normal. Your last assignment calls the function, then assigns to s the representation of the function's return value. A function that doesn't have a return statement returns None, and repr(None) == 'None'. Which is what you get. -- Max maxnoel_fr at yahoo dot fr -- ICQ #85274019 "Look at you hacker... A pathetic creature of meat and bone, panting and sweating as you run through my corridors... How can you challenge a perfect, immortal machine?" ------------------------------ Message: 3 Date: Tue, 07 Jun 2005 15:51:28 -0400 From: Kent Johnson <[EMAIL PROTECTED]> Subject: Re: [Tutor] Text problem Cc: tutor@python.org Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=windows-1252; format=flowed EUGENE ASTLEY wrote: > Python, pygames problem. > > At the end of my game, I go back to the desk top after displaying the > score of the player, as follows: > > Def game_over(self) > > Games.Message(screen = self.screen, > > X = 400, y = 400 > > Text + ?Your Score is ? + str(Game.score_value), > > Size = 60, color = color.green, > > Lifetime = 1000, after_death = self.screen.quit() > > > > This works well but I would like to have several lines of text. The > triple quote method does not work. How can I get several lines of text > into the message? It looks like you are using livewires and you have paraphrased your code. It's helpful if you copy and paste the exact code you have tried and any error message you get. Looking at livewires.games.py I see class Message(Text): def __init__ (self, screen, x, y, text, size, color, a=0, dx=0, dy=0, da=0, lifetime=0, after_death=None): so I would try something like this: def gameOver(self): text = ?""Your Score is %s Thank you for playing Please come again""? % Game.score_value games.Message(x = 400, y = 400, text = text, size = 60, color = color.green, lifetime = 1000, after_death = self.screen.quit()) Kent ------------------------------ Message: 4 Date: Tue, 7 Jun 2005 13:25:15 -0700 (PDT) From: Danny Yoo <[EMAIL PROTECTED]> Subject: Re: [Tutor] repr() To: Bernard Lebel <[EMAIL PROTECTED]> Cc: tutor@python.org Message-ID: <[EMAIL PROTECTED]> Content-Type: TEXT/PLAIN; charset=US-ASCII > Okay then I run > > s = repr( myFunc() ) > print s > > Wich returns > > 'None' Hi Bernard, Ok, what do you expect to see instead of 'None'? I ask this to make sure I understand the situation better. Best of wishes? ------------------------------ Message: 5 Date: Tue, 7 Jun 2005 13:26:16 -0700 (PDT) From: Terry Carroll <[EMAIL PROTECTED]> Subject: Re: [Tutor] More image manipulation To: "D. Hartley" <[EMAIL PROTECTED]>, Python tutor <tutor@python.org> Message-ID: <[EMAIL PROTECTED]> Content-Type: TEXT/PLAIN; charset=US-ASCII On Tue, 7 Jun 2005, D. Hartley wrote: > def findlist(): > newlist = [] > for i in range(480): > line = fromlist[:640] > del fromlist[:640] > x = line.index(195) > y = x + 5 > z = line[x:y] > del line[x:y] > for i in z: > newlist.append(i) > for i in line: > newlist.append(i) > return newlist where does the variable named "fromlist" come from? It's not passed into the method as a parameter. > B). If I run the steps in makenewpic one by one in the interpreter, it > doesnt give me any "x not in list" error, it lets me do the result = > newim.putdata(a) just fine. But then when I type result.show() it > tells me 'NoneType' object has no attribute 'show'. At first I > thought it was because when I was creating the blank newim, I was > using mode "RGB" and adding a list of "P" pixel values to it. But I > fixed it so that my newim is also mode "P" and it still tells me that > type(result) = None. You have: > result = newim.putdata(a) > return result >From the PIL docs, putdata does not appear to return an image. The docs for putdata say: putdata im.putdata(data) im.putdata(data, scale, offset) Usually, when a PIL method returns an image, the docs say "=> image" after the method signature. My guess is that putdata returns None, which would be consistent with the error message "'NoneType' object has no attribute 'show'." You'll probably want: newim.putdata(a) return newim Instead. ------------------------------ Message: 6 Date: Tue, 7 Jun 2005 13:29:31 -0700 (PDT) From: Terry Carroll <[EMAIL PROTECTED]> Subject: Re: [Tutor] repr() To: Bernard Lebel <[EMAIL PROTECTED]>, <tutor@python.org> Message-ID: <[EMAIL PROTECTED]> Content-Type: TEXT/PLAIN; charset=US-ASCII On Tue, 7 Jun 2005, Bernard Lebel wrote: > repr( myFunc ) > '<function myFunc at 0x009C6630>' > > > > s = repr( myFunc() ) > print s > > 'None' In the first example, your repr invocation is: repr(myFunc) i.e., you're asking for the repr of the function myFunc. In the second example, your repr invocation is: repr(myFunc()) i.e., you're calling the function myFunc and asking for the repr of the *result* ------------------------------ Message: 7 Date: Tue, 7 Jun 2005 16:42:05 -0400 From: Bernard Lebel <[EMAIL PROTECTED]> Subject: Re: [Tutor] repr() To: tutor@python.org Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=ISO-8859-1 Ok thanks a lot. The real question is, then, is there a way I can print the code of a function as a string? Something like.... 'def myFunction: print "hello"' Thanks Bernard On 6/7/05, Max Noel <[EMAIL PROTECTED]> wrote: > > On Jun 7, 2005, at 20:42, Bernard Lebel wrote: > > > repr( myFunc ) > > > > Wich returns > > > > '<function myFunc at 0x009C6630>' > > > > > > Okay then I run > > > > s = repr( myFunc() ) > > print s > > > > Wich returns > > > > 'None' > > That's perfectly normal. Your last assignment calls the > function, then assigns to s the representation of the function's > return value. A function that doesn't have a return statement returns > None, and repr(None) == 'None'. Which is what you get. > > -- Max > maxnoel_fr at yahoo dot fr -- ICQ #85274019 > "Look at you hacker... A pathetic creature of meat and bone, panting > and sweating as you run through my corridors... How can you challenge > a perfect, immortal machine?" > > ------------------------------ Message: 8 Date: Tue, 7 Jun 2005 15:50:38 -0500 From: "Christian Wyglendowski" <[EMAIL PROTECTED]> Subject: Re: [Tutor] Trying Ruby... To: "Terry Carroll" <[EMAIL PROTECTED]>, <tutor@python.org> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="us-ascii" > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Terry Carroll > Sent: Monday, June 06, 2005 8:20 PM > To: tutor@python.org > Subject: [Tutor] Trying Ruby... > > This message is not as off-topic as it at first appears. > > I'm a user of Activestate's ActivePython under Windows/XP. I > want to give > Ruby a spin, just for the heck of it. I vaguely recall a post a few > months ago, I don't know if it was in this forum, where someone had a > problem in Python, and it turns out it was because a Ruby > install messed > with some setting, perhaps in the Windows registry. Terry, If I remember correctly, it had to do with Tk getting messed up. But that's all I recall :-) Christian http://www.dowski.com ------------------------------ Message: 9 Date: Tue, 7 Jun 2005 13:52:08 -0700 (PDT) From: Terry Carroll <[EMAIL PROTECTED]> Subject: Re: [Tutor] More image manipulation To: Python tutor <tutor@python.org> Message-ID: <[EMAIL PROTECTED]> Content-Type: TEXT/PLAIN; charset=US-ASCII On Tue, 7 Jun 2005, Terry Carroll wrote: > On Tue, 7 Jun 2005, D. Hartley wrote: > > > def findlist(): > > newlist = [] > > for i in range(480): > > line = fromlist[:640] > > del fromlist[:640] > > x = line.index(195) > > y = x + 5 > > z = line[x:y] > > del line[x:y] > > for i in z: > > newlist.append(i) > > for i in line: > > newlist.append(i) > > return newlist > > where does the variable named "fromlist" come from? It's not passed into > the method as a parameter. I'm thinking more and more that this is the issue. Take a look at this, and see if it gives you the flavor. Only the third approach actually gives you what (I think) you want, rather than reusing the same list over and over. def testit1(): print fromlist1[0] del fromlist1[0] return fromlist1 = ['a', 'b', 'c', 'd'] print "testit1: Denise problem" testit1() testit1() testit1() def testit2(flist): print flist[0] del flist[0] return fromlist2 = ['a', 'b', 'c', 'd'] print "testit2: Python Gotcha #6" # http://www.ferg.org/projects/python_gotchas.html testit2(fromlist2) testit2(fromlist2) testit2(fromlist2) def testit3(flist): mylist = flist[:] # copy the list rather than mutating it for next time print mylist[0] del mylist[0] return fromlist3 = ['a', 'b', 'c', 'd'] print "testit3: the right way" testit3(fromlist3) testit3(fromlist3) testit3(fromlist3) ------------------------------ Message: 10 Date: Tue, 7 Jun 2005 14:04:08 -0700 (PDT) From: Danny Yoo <[EMAIL PROTECTED]> Subject: Re: [Tutor] repr() To: Bernard Lebel <[EMAIL PROTECTED]> Cc: Tutor <tutor@python.org> Message-ID: <[EMAIL PROTECTED]> Content-Type: TEXT/PLAIN; charset=US-ASCII On Tue, 7 Jun 2005, Bernard Lebel wrote: > The real question is, then, is there a way I can print the code of a > function as a string? Something like.... > > 'def myFunction: print "hello"' Hi Bernard, Ah, ok. You can use 'inspect': http://www.python.org/doc/lib/inspect-source.html For example: ###### >>> import heapq >>> import inspect >>> print inspect.getsource(heapq.heappop) def heappop(heap): """Pop the smallest item off the heap, maintaining the heap invariant.""" lastelt = heap.pop() # raises appropriate IndexError if heap is empty if heap: returnitem = heap[0] heap[0] = lastelt _siftup(heap, 0) else: returnitem = lastelt return returnitem ###### It doesn't always work: it'll work only if the function is a pure-Python function that's defined in a file that Python can find, since functions themselves don't carry their own textual representation around. Functions do contain the file name as well as their corresponding line numbers: ###### >>> heapq.__file__ '/usr/lib/python2.3/heapq.pyc' >>> heapq.heappop.func_code.co_firstlineno 136 ###### which is sorta how inspect.getsource() works. Best of wishes! ------------------------------ Message: 11 Date: Tue, 7 Jun 2005 22:15:57 +0100 From: "Alan G" <[EMAIL PROTECTED]> Subject: Re: [Tutor] interactif or not To: "Cedric BRINER" <[EMAIL PROTECTED]>, <tutor@python.org> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="iso-8859-1" > > look to see if stdin is a tty. Unix is usually very careful about who has a > > "controlling tty" and who does not. In Python, file objects have an isatty() > > method that will return True or False. > > > > import sys > > isinteractive = sys.stdin.isatty() > > if isinteractive: > > ... > > else: > > ... > > > > tested and it works ! Aha! I knew about tty on Unix so I looked in the os module for it, I never thought of it being a file method.... Alan G. ------------------------------ Message: 12 Date: Tue, 7 Jun 2005 14:57:33 -0700 From: "D. Hartley" <[EMAIL PROTECTED]> Subject: [Tutor] Fwd: More image manipulation To: Python tutor <tutor@python.org> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset=ISO-8859-1 Sorry, Terry, forgot to reply to the whole list. Here it is: ---------- Forwarded message ---------- From: D. Hartley <[EMAIL PROTECTED]> Date: Jun 7, 2005 2:49 PM Subject: Re: [Tutor] More image manipulation To: Terry Carroll <[EMAIL PROTECTED]> Terry, OK. I tried them out and I do see the diffence. (btw, testit1 gave me the following error: Traceback (most recent call last): File "<pyshell#72>", line 1, in ? testit1() File "<pyshell#68>", line 3, in testit1 del fromlist[0] IndexError: list assignment index out of range ... was that something you intended? that didnt happen with my original problem). Anyway I def notice the diff between 2 and 3, but see here's the thing: I think I *do* want it like #2, becaues I want it to keep returning the same list (i.e., move on and use line 2 (b), and then line 3 (c), and so on), rather than keep iterating over the same first line (a) over and over again. I want to take the first line in the picture, rearrange the pixels, and pop that line into the new list that I can then (eventually) create a new image from. I *thought* my list was populated (it's 307200 pixels long, after all), but it wont work when i try to putdata it onto a new blank image. > > where does the variable named "fromlist" come from? It's not passed into > > the method as a parameter. No, I had it defined right before the function. it pulls it in just fine. And like I said, the function returns me with a list of 307200 values - which makes me think that it "got" all 307200 of the original pixels, and performed the function correctly on each line. However, when I did the following: def test(): y = findlist() for i in range(480): piece = y[:640] del y[:640] print "Line",i," - ",y[:5] to look at the beginning five pixels of each of the new lines, for line 479 (the last i), it gave me []. This doesnt make sense! Hope I didnt miss something from your explanation...? ~Denise ------------------------------ _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor End of Tutor Digest, Vol 16, Issue 21 ************************************* _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
