Re: maybe a bug in python
Just as everyone said, use ('a',) instead of ('a'). As Steve said there
are lots of documentation about it. Check the Library Reference at
http://www.python.org/doc/current/lib/typesseq.html#l2h-155 or to make
things more clear you could read the tuples section in the tutorial at
http://docs.python.org/tut/node7.html#SECTION00730
my 2 cents
Regards,
Tiago S Daitx
On 6/5/05, flyaflya [EMAIL PROTECTED] wrote:
a = {1: (a)} a[1]'a'why not ('a')? when a = {1: (((a)))} a[1]'a'the result is 'a' too,not (((a))).but when use[a] or (a,b),the
tuple is longer than 1, it's no problem.--[http://www.flyaflya.com/]--
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Re: executing a command
Hello,When you use one of the os.exec*p fnnctions python looks for the specified file in the directories refered by os.environ['PATH']. If and _only_ if your os.enviroment['PATH'] isn't set then it looks in os.defpath - you can check this at http://www.python.org/doc/current/lib/os-path.html#l2h-1557So, my advice is that you first try printing your os.environ['PATH']to check wheter it includes the program that you are calling or not (and then you will have to include it). In the case that it isn't set, then check os.defpath.Also, when you use one of the functions os.exec that requires a path variable to be passed (ie. the ones that doesn't have 'p' in their names) the path can be relative or absolute, but it must include the file name (and not only the dir where the file is).And for each one of these os.exec* functions the first argument will always be used as the program name (argv[0]), so unless you a reason to do otherwise, pass the same name as the file that you are calling.Regards,Tiago S DaitxOn 6/4/05, andrea valle [EMAIL PROTECTED] wrote: Hi to all, I need to run a program from inside python (substantially, algorithmic batch processing). I'm on mac osx 10.3.8 with python 2.3 framework and macpython. Trying to use exec*, I checked references, Brueck Tanner, and then grab this code from effbot: program = python def run(program, *args): os.execvp(program, (program,) +args) print ok run(python, /Users/apple/Desktop/prova.py) Traceback (most recent call last):File pyshell#50, line 1, in -toplevel-run(python, /Users/apple/Desktop/prova.py)File pyshell#49, line 2, in run os.execvp(program, (program,) +args)File /System/Library/Frameworks/Python.framework/Versions/2.3/lib/ python2.3/os.py, line 336, in execvp_execvpe(file, args) File /System/Library/Frameworks/Python.framework/Versions/2.3/lib/ python2.3/os.py, line 374, in _execvpefunc(fullname, *argrest) OSError: [Errno 45] Operation not supported This OSError seems to be consistend with all exec family. What does it mean and how to use exec? I also tried with. os.system. It works if I invoke python, but it fails (in a way I don't know) when I invoke other programs. For example: command = python /Users/apple/Desktop/test.py os.system(command) 0 (test.py write a string in a file. It works) But with lilypond or with latex I have no output (and in fact it doesn't give 0 as result): command = lilypond /Users/apple/Desktop/test.ly os.system(command) 32512 command = latex /Users/apple/Desktop/test.tex os.system(command) 32512 Any help is much appreciated Thanks a lot -a- -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re:
That depends on what using a file means. You could check the thread executing a command ( http://mail.python.org/pipermail/python-list/2005-June/283963.html) and see if there's something related there, otherwise it would help if you could post what exactly you are trying to do (execute a file, open a file, write into a file, etc). Regards, Tiago S DaitxOn 6/4/05, Jatinder Singh [EMAIL PROTECTED] wrote: Hi guysI am working in a complex directory structure. I want to use a file (not .py)which is in some other directory. I couldn't do it.but if I copy the file inthe same directory then it is working fine. Can anybody guide me how and where to add the path of the file. I have tried it with sys.path but it is not forthat.--Regards,Jatinder Singh" Everyone needs to be loved... especially when they do not deserve it."-- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for help with a python-mode/pdbtrack/gdb patch
Unfortunatly the only tip I can give you is that there's a list for mode-python in http://mail.python.org/mailman/listinfo/python-mode, but you probably already know about it. Regards, Tiago S DaitxOn 6/4/05, Skip Montanaro [EMAIL PROTECTED] wrote: Can someone who uses Emacs's python-mode, pdbtrack and gdb take a look atthis simple but ancient patch: http://sourceforge.net/tracker/index.php?func=detailaid=785816group_id=86916atid=581351As you'll see from the discussion, Barry had problems with it from XEmacsand was thinking of rejecting it way back when.I'd like to resolve it one way or the other, but I've never used pdb, let alone pdbtrack.Thanks,Skip--http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Importing and source structure troubles
The best way depends on how you have structured your program. From what you've told I believe that setting the directories like dir1 dir2 dir3 is a good approach. As for the import errors you're getting, check this section from the tutorial: http://docs.python.org/tut/node8.html#SECTION00840 It describes how to setup packages in Python - and that's exactly what you need. You'll see that in order to import dir3 from dir2 you must import the full name of the package (ie. import dir1.dir3). See the intra-packages reference http://docs.python.org/tut/node8.html#SECTION00842 Regards, Tiago S Daitx On 6/3/05, Echo [EMAIL PROTECTED] wrote: Hello, I am having trouble with putting the source for a program I am working on in different directories. I have the directories set up like this: dir1 dir2 dir3 I want the source in dir2 to be able to import from the source in dir3(is this possible). I get import errors when I tried doing this. A less preferred structure that I tried was like this: dir1 dir3 dir2 I thought that this way would work. but this way I get even more import errors. two files in dir2 have a 'from dir3.dir2 import bla' however, in one of the files, I get an import error. any idea why this is?? What is the best way to structure the program I am working on? I have 3 groups of source files. One has the files that start the program and some tools. Another group has all the main files. And the last group is just some misc stuff. How would the best way to accomplish this be? -- -Echo -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
