forked from mirrors/nixpkgs
e70602e12b
Note: simply calling `virtualenv .` will not produce a ./bin/python which can import e.g. sqlite3, using `virtualenv --python=python2.7` will, if python2.7 is python27Full (the wrapped python). I'm not sure if this is a bug or a feature.
60 lines
2.7 KiB
Diff
60 lines
2.7 KiB
Diff
Without this patch `virtualenv --python=python2.7 .` fails with an
|
|
error because it notices that the python readline.so is not in the
|
|
same path as python2.7. I assume this is to avoid copying the wrong
|
|
file on systems where it is possible to find incompatible libraries by
|
|
accident. Adding "/nix/store" to the prefix fixes this problem.
|
|
|
|
A sitecustomize.py is created in the virtualenv which makes libraries
|
|
from the python specified by the --python argument available to the
|
|
virtualenv. For example, this makes readline and sqlite3 available
|
|
when a wrapped python is specified. If no --python argument is passed,
|
|
it will only add the path to the python used when building
|
|
`virtualenv`, which is the unwrapped python, so sqlite3 won't be
|
|
available.
|
|
|
|
|
|
diff --git a/virtualenv.py b/virtualenv.py
|
|
index d3e76a7..cb307fa 100755
|
|
--- a/virtualenv.py
|
|
+++ b/virtualenv.py
|
|
@@ -1051,17 +1051,7 @@ def path_locations(home_dir):
|
|
|
|
|
|
def change_prefix(filename, dst_prefix):
|
|
- prefixes = [sys.prefix]
|
|
-
|
|
- if is_darwin:
|
|
- prefixes.extend((
|
|
- os.path.join("/Library/Python", sys.version[:3], "site-packages"),
|
|
- os.path.join(sys.prefix, "Extras", "lib", "python"),
|
|
- os.path.join("~", "Library", "Python", sys.version[:3], "site-packages"),
|
|
- # Python 2.6 no-frameworks
|
|
- os.path.join("~", ".local", "lib","python", sys.version[:3], "site-packages"),
|
|
- # System Python 2.7 on OSX Mountain Lion
|
|
- os.path.join("~", "Library", "Python", sys.version[:3], "lib", "python", "site-packages")))
|
|
+ prefixes = ["/nix/store", sys.prefix]
|
|
|
|
if hasattr(sys, 'real_prefix'):
|
|
prefixes.append(sys.real_prefix)
|
|
@@ -1078,6 +1068,8 @@ def change_prefix(filename, dst_prefix):
|
|
if src_prefix != os.sep: # sys.prefix == "/"
|
|
assert relpath[0] == os.sep
|
|
relpath = relpath[1:]
|
|
+ if src_prefix == "/nix/store":
|
|
+ relpath = "/".join(relpath.split("/")[1:])
|
|
return join(dst_prefix, relpath)
|
|
assert False, "Filename %s does not start with any of these prefixes: %s" % \
|
|
(filename, prefixes)
|
|
@@ -1190,6 +1182,11 @@ def install_python(home_dir, lib_dir, inc_dir, bin_dir, site_packages, clear, sy
|
|
site_filename_dst = change_prefix(site_filename, home_dir)
|
|
site_dir = os.path.dirname(site_filename_dst)
|
|
writefile(site_filename_dst, SITE_PY)
|
|
+ wrapper_path = join(prefix, "lib", py_version, "site-packages")
|
|
+ writefile(
|
|
+ join(site_dir, 'sitecustomize.py',),
|
|
+ "import sys; sys.path.append('%s')" % wrapper_path
|
|
+ )
|
|
writefile(join(site_dir, 'orig-prefix.txt'), prefix)
|
|
site_packages_filename = join(site_dir, 'no-global-site-packages.txt')
|
|
if not site_packages:
|