visualpython-users

[Visualpython-users] How to install VPython v3 and v5 within the same Python installation ?

[Stef M. <s.m...@ru...>]

hello,

Sorry, I think this is question is asked before (might be even done by 
me ;-)
but I can't find it anymore, so it must have had an unclear subject-line.

If I remember well the answer was, install V3+Python 2.4 and V5 + Python 
2.5.
But why isn't it possible to install both with 2.5 (as this is by now 
the main stream) ?

Although I never used it myself, there seems to be something like a 
pth-file.
I also wouldn't mind to explicitly add the path of either v3 or v5 to 
the python path,
before running a program (because this can easily be automated).

I would love to go to V5,
but a number of features of V3 is not (yet) implemented in V5.

thanks,
Stef Mientki

Re: [Visualpython-users] How to install VPython v3 and v5 within the same Python installation ?

[Bruce S. <Bru...@nc...>]

The problem with installing two Visuals for one Python is the conflict 
between the name "visual" being then ambiguous. I just tried a little 
experiment of changing the name of the new site-packages/visual to 
visual5 and installing Visual 3 as well, then trying to do "from visual5 
import *", but that didn't work. Maybe someone else will figure out how 
to fight through the name problems.

Another workaround is to install Visual 3, save a copy of the relevant 
materials from site-packages, then delete from site-packages. Then 
install Visual 5, save a copy of these materials. Now you can swithc 
back and forth by copying the desired files into site-packages from the 
saved copies.

Bruce Sherwood

Stef Mientki wrote:
> hello,
>
> Sorry, I think this is question is asked before (might be even done by 
> me ;-)
> but I can't find it anymore, so it must have had an unclear subject-line.
>
> If I remember well the answer was, install V3+Python 2.4 and V5 + Python 
> 2.5.
> But why isn't it possible to install both with 2.5 (as this is by now 
> the main stream) ?
>
> Although I never used it myself, there seems to be something like a 
> pth-file.
> I also wouldn't mind to explicitly add the path of either v3 or v5 to 
> the python path,
> before running a program (because this can easily be automated).
>
> I would love to go to V5,
> but a number of features of V3 is not (yet) implemented in V5.
>
> thanks,
> Stef Mientki
>
>
> ------------------------------------------------------------------------------
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>   

Re: [Visualpython-users] How to install VPython v3 and v5 within the same Python installation ?

[Stef M. <s.m...@ru...>]

thanks Bruce,

Bruce Sherwood wrote:
> The problem with installing two Visuals for one Python is the conflict 
> between the name "visual" being then ambiguous. I just tried a little 
> experiment of changing the name of the new site-packages/visual to 
> visual5 and installing Visual 3 as well, then trying to do "from 
> visual5 import *", but that didn't work. Maybe someone else will 
> figure out how to fight through the name problems.
>
> Another workaround is to install Visual 3, save a copy of the relevant 
> materials from site-packages, then delete from site-packages. Then 
> install Visual 5, save a copy of these materials. Now you can swithc 
> back and forth by copying the desired files into site-packages from 
> the saved copies.
>
I played around, and found  the following work around:
- I installed Vpython version 5 on a different computer (afraid of  
harming my own work-PC ;-)
- called the visual directory "visual5"
- copied that visual5 directory to site-packages
- created the function below, which I place on a central place where all 
programs can reach it
- and add a line to all VPython programs  "Get_Visual ( ... )"  before 
importing visual, seems to work great.

cheers,
Stef


def Get_Visual ( Version = 3 ) :
  import os, sys
  print sys.path
  for path in sys.path :
    if path.endswith ( 'site-packages') :
      print path
      break
  vpath = os.path.join ( path, 'visual' )
  if ( Version == 3 ) and os.path.exists ( vpath + '3' ) :
    print 'Visual ==> V3', vpath
    os.rename ( vpath, vpath + '5' )
    os.rename ( vpath + '3', vpath )
  elif ( Version == 5 ) and os.path.exists ( vpath + '5' ) :
    print 'Visual ==> V5', vpath
    os.rename ( vpath, vpath + '3' )
    os.rename ( vpath + '5', vpath )

Get_Visual ( 3 )
from visual import *
...

Re: [Visualpython-users] How to install VPython v3 and v5 within the same Python installation ?

[Bruce S. <Bru...@nc...>]

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Thanks much for figuring this out!<br>
<br>
Bruce Sherwood<br>
<br>
Stef Mientki wrote:
<blockquote cite="mid:494...@ru..." type="cite">
  <pre wrap="">thanks Bruce,

Bruce Sherwood wrote:
  </pre>
  <blockquote type="cite">
    <pre wrap="">The problem with installing two Visuals for one Python is the conflict 
between the name "visual" being then ambiguous. I just tried a little 
experiment of changing the name of the new site-packages/visual to 
visual5 and installing Visual 3 as well, then trying to do "from 
visual5 import *", but that didn't work. Maybe someone else will 
figure out how to fight through the name problems.

Another workaround is to install Visual 3, save a copy of the relevant 
materials from site-packages, then delete from site-packages. Then 
install Visual 5, save a copy of these materials. Now you can swithc 
back and forth by copying the desired files into site-packages from 
the saved copies.

    </pre>
  </blockquote>
  <pre wrap=""><!---->I played around, and found  the following work around:
- I installed Vpython version 5 on a different computer (afraid of  
harming my own work-PC ;-)
- called the visual directory "visual5"
- copied that visual5 directory to site-packages
- created the function below, which I place on a central place where all 
programs can reach it
- and add a line to all VPython programs  "Get_Visual ( ... )"  before 
importing visual, seems to work great.

cheers,
Stef


def Get_Visual ( Version = 3 ) :
  import os, sys
  print sys.path
  for path in sys.path :
    if path.endswith ( 'site-packages') :
      print path
      break
  vpath = os.path.join ( path, 'visual' )
  if ( Version == 3 ) and os.path.exists ( vpath + '3' ) :
    print 'Visual ==&gt; V3', vpath
    os.rename ( vpath, vpath + '5' )
    os.rename ( vpath + '3', vpath )
  elif ( Version == 5 ) and os.path.exists ( vpath + '5' ) :
    print 'Visual ==&gt; V5', vpath
    os.rename ( vpath, vpath + '3' )
    os.rename ( vpath + '5', vpath )

Get_Visual ( 3 )
from visual import *
...





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