63 lines
2.8 KiB
Diff
63 lines
2.8 KiB
Diff
Without this patch `virtualenv --python=python2.7 .` fails with an
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error because it notices that the python readline.so is not in the
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same path as python2.7. I assume this is to avoid copying the wrong
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file on systems where it is possible to find incompatible libraries by
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accident. Adding "/nix/store" to the prefix fixes this problem.
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A sitecustomize.py is created in the virtualenv which makes libraries
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from the python specified by the --python argument available to the
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virtualenv. For example, this makes readline and sqlite3 available
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when a wrapped python is specified. If no --python argument is passed,
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it will only add the path to the python used when building
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`virtualenv`, which is the unwrapped python, so sqlite3 won't be
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available.
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diff --git a/src/virtualenv.py b/src/virtualenv.py
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index 4b57cde..afda73f 100755
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--- a/src/virtualenv.py
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+++ b/src/virtualenv.py
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@@ -1071,20 +1071,7 @@ def path_locations(home_dir, dry_run=False):
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def change_prefix(filename, dst_prefix):
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- prefixes = [sys.prefix]
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-
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- if is_darwin:
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- prefixes.extend(
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- (
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- os.path.join("/Library/Python", sys.version[:3], "site-packages"),
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- os.path.join(sys.prefix, "Extras", "lib", "python"),
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- os.path.join("~", "Library", "Python", sys.version[:3], "site-packages"),
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- # Python 2.6 no-frameworks
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- os.path.join("~", ".local", "lib", "python", sys.version[:3], "site-packages"),
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- # System Python 2.7 on OSX Mountain Lion
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- os.path.join("~", "Library", "Python", sys.version[:3], "lib", "python", "site-packages"),
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- )
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- )
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+ prefixes = ["/nix/store", sys.prefix]
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if hasattr(sys, "real_prefix"):
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prefixes.append(sys.real_prefix)
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@@ -1107,6 +1094,8 @@ def change_prefix(filename, dst_prefix):
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if src_prefix != os.sep: # sys.prefix == "/"
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assert relpath[0] == os.sep
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relpath = relpath[1:]
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+ if src_prefix == "/nix/store":
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+ relpath = "/".join(relpath.split("/")[1:])
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return join(dst_prefix, relpath)
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assert False, "Filename {} does not start with any of these prefixes: {}".format(filename, prefixes)
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@@ -1233,6 +1222,11 @@ def install_python(home_dir, lib_dir, inc_dir, bin_dir, site_packages, clear, sy
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site_filename_dst = change_prefix(site_filename, home_dir)
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site_dir = os.path.dirname(site_filename_dst)
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writefile(site_filename_dst, SITE_PY)
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+ wrapper_path = join(prefix, "lib", py_version, "site-packages")
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+ writefile(
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+ join(site_dir, 'sitecustomize.py',),
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+ "import sys; sys.path.append('%s')" % wrapper_path
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+ )
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writefile(join(site_dir, "orig-prefix.txt"), prefix)
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site_packages_filename = join(site_dir, "no-global-site-packages.txt")
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if not site_packages:
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