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Description: Let ensurepip use the system wheels
Not the ones from the python source.
Origin: Debian cpython packaging
Last-Update: 2015-03-26
--- a/lib-python/2.7/ensurepip/__init__.py
+++ b/lib-python/2.7/ensurepip/__init__.py
@@ -1,6 +1,7 @@
#!/usr/bin/env python2
from __future__ import print_function
+import glob
import os
import os.path
import pkgutil
@@ -12,13 +13,9 @@
__all__ = ["version", "bootstrap"]
-_SETUPTOOLS_VERSION = "20.10.1"
-
-_PIP_VERSION = "8.1.1"
-
# pip currently requires ssl support, so we try to provide a nicer
# error message when that is missing (http://bugs.python.org/issue19744)
-_MISSING_SSL_MESSAGE = ("pip {} requires SSL/TLS".format(_PIP_VERSION))
+_MISSING_SSL_MESSAGE = ("pip requires SSL/TLS")
try:
import ssl
except ImportError:
@@ -31,8 +28,8 @@
pass
_PROJECTS = [
- ("setuptools", _SETUPTOOLS_VERSION),
- ("pip", _PIP_VERSION),
+ "setuptools",
+ "pip",
]
@@ -50,7 +47,11 @@
"""
Returns a string specifying the bundled version of pip.
"""
- return _PIP_VERSION
+ whl_name = 'pip'
+ wheel_names = glob.glob('/usr/share/python-wheels/%s-*.whl' % whl_name)
+ if len(wheel_names) == 1:
+ return os.path.basename(wheel_names[0]).split('-')[1]
+ raise RuntimeError('missing dependency wheel %s. Installation of the python-%s-whl package is needed to use ensurepip.' % (whl_name, whl_name))
def _disable_pip_configuration_settings():
@@ -93,21 +94,53 @@
# omit pip and easy_install
os.environ["ENSUREPIP_OPTIONS"] = "install"
+ # Debian: The bundled wheels are useless to us because we must use ones
+ # crafted from source code in the archive. As we build the virtual
+ # environment, copy the wheels from the system location into the virtual
+ # environment, and place those wheels on sys.path.
+ def copy_wheels(wheels, destdir, paths):
+ for project in wheels:
+ wheel_names = glob.glob(
+ '/usr/share/python-wheels/{}-*.whl'.format(project))
+ if len(wheel_names) == 0:
+ raise RuntimeError('missing dependency wheel %s. Installation of the python-%s-whl package is needed to use ensurepip.' % (project, project))
+ assert len(wheel_names) == 1, wheel_names
+ wheel_name = os.path.basename(wheel_names[0])
+ path = os.path.join('/usr/share/python-wheels', wheel_name)
+ with open(path, 'rb') as fp:
+ whl = fp.read()
+ dest = os.path.join(destdir, wheel_name)
+ with open(dest, 'wb') as fp:
+ fp.write(whl)
+ paths.append(dest)
+
+ # check that the python-{pip,setuptools}-whl packages are installed
+ missing = []
+ for project in reversed(_PROJECTS):
+ wheel_names = glob.glob('/usr/share/python-wheels/%s-*.whl' % project)
+ if len(wheel_names) != 1:
+ missing.append(project)
+ if missing:
+ raise RuntimeError('missing wheel(s) %s. Installation of the %s package(s) is needed to use ensurepip.' \
+ % (', '.join([missing]),
+ ', '.join(['python-%s-whl' % m for m in missing])) \
+ )
+
tmpdir = tempfile.mkdtemp()
+
+ for project in _PROJECTS:
+ try:
+ with open('/usr/share/python-wheels/%s.dependencies' % project) as fp:
+ dependencies = [line[:-1].split()[0] for line in fp.readlines()]
+ except IOError:
+ dependencies = []
+ copy_wheels(dependencies, tmpdir, sys.path)
+
try:
# Put our bundled wheels into a temporary directory and construct the
# additional paths that need added to sys.path
additional_paths = []
- for project, version in _PROJECTS:
- wheel_name = "{}-{}-py2.py3-none-any.whl".format(project, version)
- whl = pkgutil.get_data(
- "ensurepip",
- "_bundled/{}".format(wheel_name),
- )
- with open(os.path.join(tmpdir, wheel_name), "wb") as fp:
- fp.write(whl)
-
- additional_paths.append(os.path.join(tmpdir, wheel_name))
+ copy_wheels(_PROJECTS, tmpdir, additional_paths)
# Construct the arguments to be passed to the pip command
args = ["install", "--no-index", "--find-links", tmpdir]
@@ -120,7 +153,7 @@
if verbosity:
args += ["-" + "v" * verbosity]
- _run_pip(args + [p[0] for p in _PROJECTS], additional_paths)
+ _run_pip(args + _PROJECTS, additional_paths)
finally:
shutil.rmtree(tmpdir, ignore_errors=True)
@@ -137,7 +170,8 @@
return
# If the pip version doesn't match the bundled one, leave it alone
- if pip.__version__ != _PIP_VERSION:
+ # Disabled for Debian, always using the version from the python3-pip package.
+ if False and pip.__version__ != _PIP_VERSION:
msg = ("ensurepip will only uninstall a matching version "
"({!r} installed, {!r} bundled)")
print(msg.format(pip.__version__, _PIP_VERSION), file=sys.stderr)
@@ -151,7 +185,7 @@
if verbosity:
args += ["-" + "v" * verbosity]
- _run_pip(args + [p[0] for p in reversed(_PROJECTS)])
+ _run_pip(args + reversed(_PROJECTS))
def _main(argv=None):
|
