On Jul 3, 9:35 am, Alan Isaac <ais...@american.eduwrote:
Suppose I have a directory `scripts`.
I'd like the scripts to have access to a package
that is not "installed", i.e., it is not on sys.path.
On this list, various people have described a variety
of tricks they use, but nobody has proposed a
pretty way to allow this.
I am therefore assuming there is not one. (?)
How about allowing a `scripts.pth` file in such a `scripts`
directory, to work like a path configuration file?
(But to be used only when __name__=="__main__".)
Drawbacks?
Alan Isaac
before i can adequately shoot down your proposal, i need more
information.
first, how does the interpreter know to look in 'scripts' for your
'scripts.pyh' file and not in '.' or '~' or sys.argv[0] or someplace
else? and you do know, don't you, that if you run 'scripts/
myscript.py' then 'scripts' is automagically prepended to the search
path for modules?
second, what's for format of this proposed file? does it contain the
name of a single directory? is it one directory name per line? is it
intended to be os-specific or will the same file work on windows,
unix, vms and macos?
third, is there anything special about the name? should i put a
myscripts.pyh file in the myscripts directory? what if i have
multiple .pyh files?
if i may make some assumptions about the answers to the above, then
this incantation might do somewhat more than what you've asked for
(but what you actually want may be different):
if __name__ == '__main__':
import sys
from os.path import split, join, expanduser
for d in '.', split(sys.argv[0])[0], expanduser('~'):
scripts_pyh = join(d, 'scripts.pyh')
try:
for each_line in open(scripts_pyh).readlines():
sys.path.append(each_line)
except:
pass
personally, though, i would be more likely to use this and skip all of
that 'scripts.pyh' nonsense:
if __name__ == '__main__':
import sys, os.path
for d in '.', os.path.expanduser('~'):
if os.path.isdir(d): sys.path.append(d)
