On 09/23/10 04:29 PM, John H Palmieri wrote:
On Sep 23, 8:14 am, "Dr. David Kirkby"<david.kir...@onetel.net>
wrote:
Readline is a package which has no dependences other than BASE (see
$SAGE_ROOT/spkg/standard/deps). So it can be built very early - before Python.
This is part of the log from a successful installation of readline.
=================================================================
-bash-4.1$ tail spkg/logs/readline-6.0.p2.log
make[2]: Leaving directory
`/home/users/drkirkby/sage-4.6.alpha1/spkg/build/readline-6.0.p2/src'
real 8m1.326s
user 4m33.895s
sys 0m50.145s
Successfully installed readline-6.0.p2
Now cleaning up tmp files.
Making Sage/Python scripts relocatable...
python: No such file or directory
Finished installing readline-6.0.p2.spkg
==================================================================
Notice two of the last last 3 lines above say
Making Sage/Python scripts relocatable...
python: No such file or directory
This is from the script sage-spkg:
echo "Making Sage/Python scripts relocatable..."
cd "$SAGE_LOCAL"/bin
./sage-make_relative
Then sage-make_relative is a python script.
Maybe this part of the script should test for python's existence
first, and if it's there, run it. Or test for the existence of both
local/bin/python/... and python?
--
John
But what if Python does not exist? We probably can't build it at this point, as
I doubt all Python's perquisites are in place.
This is the complete file, which is only 29 lines long.
=====================================================
drkir...@hawk:~/sage-4.6.alpha1$ cat ./spkg/base/sage-make_relative
#!/usr/bin/env python
import os
print "Making script relocatable"
for F in os.listdir('.'):
if F == 'sage-sage':
continue
if not os.path.isfile(F):
continue
try:
X = open(F,'r')
except IOError:
continue
L = X.readline()
if L.find("python") != -1 and L.find("#!") != -1:
Y = X.read()
X.close()
#print "Making interpreter for script %s relative"%F
try:
O = open(F,'w')
except IOError:
os.system('chmod u+w "%s"'%F)
O = open(F,'w')
O.write("#!/usr/bin/env python\n"+Y)
O.close()
==========================================================
I'm not a Python guru, but the first 12 lines seem to just try to check if
"sage-sage" can be opened for reading. Is it me, or is that Python overly
complicated?
I could easily do with:
if [ -r "sage-sage" ]
in a shell script.
I'd have to try to work out what the rest of this Python does, but at only 29
lines, I doubt it would be hard to rewrite this as a more portable shell script.
It looks like it creates the pyton script at the end, with the contents of just
"#!/usr/bin/env python"
Dave
--
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