mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-22 14:47:06 +00:00
47 lines
1.2 KiB
Python
47 lines
1.2 KiB
Python
"""Recursively load pth files in site-packages of sys.path
|
|
|
|
- iterate over sys.path
|
|
- check for pth in dirs that end in site-packages
|
|
- ignore import statements in pth files
|
|
- add dirs listed in pth files right after current sys.path element,
|
|
they will be processed in next iteration
|
|
"""
|
|
|
|
import os
|
|
import site
|
|
import sys
|
|
|
|
|
|
for path_idx, sitedir in enumerate(sys.path):
|
|
# ignore non-site-packages
|
|
if not sitedir.endswith('site-packages'):
|
|
continue
|
|
|
|
# find pth files
|
|
try:
|
|
names = os.listdir(sitedir)
|
|
except os.error:
|
|
continue
|
|
dotpth = os.extsep + "pth"
|
|
pths = [name for name in names if name.endswith(dotpth)]
|
|
|
|
for pth in pths:
|
|
fullname = os.path.join(sitedir, pth)
|
|
try:
|
|
f = open(fullname, "rU")
|
|
except IOError:
|
|
continue
|
|
|
|
with f:
|
|
for n, line in enumerate(f):
|
|
if line.startswith("#"):
|
|
continue
|
|
|
|
if line.startswith(("import ", "import\t")):
|
|
continue
|
|
|
|
line = line.rstrip()
|
|
dir, dircase = site.makepath(sitedir, line)
|
|
if not dircase in sys.path:
|
|
sys.path.insert(path_idx+1, dir)
|