[Tutor] Path?

[Adam Bark]

On 15 July 2010 17:21, Jim Byrnes <jf_byrnes at comcast.net> wrote:

> Adam Bark wrote:
>
>> On 14 July 2010 17:41, Jim Byrnes<jf_byrnes at comcast.net>  wrote:
>>
>>  Adam Bark wrote:
>>>
>>>  On 14 July 2010 02:53, Jim Byrnes<jf_byrnes at comcast.net>   wrote:
>>>>
>>>>  Adam Bark wrote:
>>>>
>>>>>
>>>>> <snipped some old stuff>
>>>>>
>>>>>
>>>>>  If I use the terminal to start the program it has no problem using the
>>>>>
>>>>>   file.  There are multiple files in multiple directories so I was
>>>>>>
>>>>>>>  looking
>>>>>>>>> for
>>>>>>>>> a way to just double click them and have them run.  If it turns out
>>>>>>>>> that
>>>>>>>>> I
>>>>>>>>> must make changes to or for each of the files it will be easier to
>>>>>>>>> just
>>>>>>>>> keep
>>>>>>>>> using the terminal.  I've only been using Ubuntu for a few months
>>>>>>>>> so
>>>>>>>>> I
>>>>>>>>> was
>>>>>>>>> surprised that the program could not see a file that is in the same
>>>>>>>>> directory.
>>>>>>>>>
>>>>>>>>> Regards,  Jim
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>  The problem is ubuntu doesn't run the script from the directory
>>>>>>>> it's
>>>>>>>> in
>>>>>>>> so
>>>>>>>> it's looking for wxPython.jpg somewhere else.
>>>>>>>>
>>>>>>>>
>>>>>>>>  OK, I mistakenly thought that double-clicking on file in Nautilus
>>>>>>>> would
>>>>>>>>
>>>>>>>>  take care of the path info.
>>>>>>>
>>>>>>> In my reply above I also mentioned that I tried by dropping it on a
>>>>>>> Launcher on the top panel and that the command the launcher uses is
>>>>>>> usr/bin/python2.6.  Is there a way that the command can be changed so
>>>>>>> that
>>>>>>> it will look in the same directory the python script is in for any
>>>>>>> file
>>>>>>> it
>>>>>>> needs?
>>>>>>>
>>>>>>> Thanks,  Jim
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>> Not sure if you got my previous email but you could try writing the
>>>>>> bash
>>>>>> script I posted (with the $1 line to get the path) and setting that as
>>>>>> your
>>>>>> launcher, I think it should work.
>>>>>>
>>>>>> Let me know if you didn't get it or it doesn't work.
>>>>>>
>>>>>> HTH,
>>>>>> Adam.
>>>>>>
>>>>>>
>>>>>>  I got it, got sidetracked and then forgot to look at it again.
>>>>>>  Thanks
>>>>>>
>>>>> for
>>>>> reminding me.  Your idea works, but with one little downside.  The
>>>>> directories I am working with are chapters in a book.  So as I move
>>>>> from
>>>>> chapter to chapter I will need to change the bash script, but this
>>>>> seems
>>>>> to
>>>>> be less typing than using the terminal.
>>>>>
>>>>>
>>>>> Thanks,  Jim
>>>>>
>>>>>
>>>>>  Ok cool, glad it works. It might be possible to get the path so you
>>>> don't
>>>> have to set it each time, try this:
>>>>
>>>> #!/bin/bash
>>>> IFS="/"
>>>> path=($1)
>>>> cd $(path[0:#path[*]])
>>>> python $1
>>>>
>>>>
>>>> # Warning, I'm not exactly a competent bash programmer so this may not
>>>> work
>>>> :-p
>>>>
>>>> Let me know if you need a hand to fix it,
>>>>
>>>> HTH,
>>>> Adam.
>>>>
>>>>
>>>>  I tried the new bash code but when I dropped a file on the launcher it
>>> just
>>> flashed an gave no output.  So I tried running the bash script
>>> (name=runpython) in a terminal and got this error:
>>>
>>> /home/jfb/runpython: line 4: path[0:#path[*]]: command not found
>>> Python 2.6.5 (r265:79063, Apr 16 2010, 13:57:41)
>>> [GCC 4.4.3] on linux2
>>> Type "help", "copyright", "credits" or "license" for more information.
>>>
>>>>
>>>>>>
>>> I know even less about bash than you do, so I don't where to start to
>>> debug
>>> this.
>>>
>>>
>>> Thanks,  Jim
>>>
>>> Ok then, this time it's tested and not just improvised, here we go:
>>>
>>
>> #!/bin/bash
>>
>> script=$1 # Full path for calling the script later
>> orig_IFS=$IFS # This is to reset IFS so that "script" is correct
>> (otherwise
>> has spaces instead of /)
>> IFS="/"
>> path=( $1 )
>> IFS=$orig_IFS
>> last_ind=${#path[@]} # Works out the length of path
>> let "last_ind -= 1" # Sets last_ind to index of script name
>> len_path=${path[@]:0:last_ind} # Gets the path without the script name
>> let "len_path=${#len_path[0]} + 1" # This gives the length of the script
>> string upto just before the last /
>> cd ${script[@]:0:len_path} # cds to the path
>> python script
>>
>>
>> As pretty much my first non-trivial bash script it's probably horrible but
>> it seems to work.
>>
>> HTH,
>> Adam.
>>
>>
> There must be something different in our setups because it did not work for
> me.  If I run it from a terminal I get:
>
> jfb at jfb-ubuntu64:~$ /home/jfb/runpython_test bitmap_button.py
> /home/jfb/runpython_test: line 12: cd: b: No such file or directory
> python: can't open file 'script': [Errno 2] No such file or directory
> jfb at jfb-ubuntu64:~$
>
> Thanks  Jim
>
>
Oh cock, I missed a $ sign it should be "python $script". Seems to complain
about the path as well though, not sure about that one, I'll get back to you
later.

Adam.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/tutor/attachments/20100715/314ad3cd/attachment-0001.html>