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Implemented PEP 405 (Python virtual environments).

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Vinay Sajip 2012-05-26 03:45:29 +01:00
parent f2bdc3690a
commit 7ded1f0f69
41 changed files with 1454 additions and 66 deletions
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29
Lib/sysconfig.py
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@ -3,6 +3,7 @@
import os
import re
import sys
import os
from os.path import pardir, realpath
from configparser import RawConfigParser
@ -61,13 +62,15 @@ def _expand_globals(config):
_expand_globals(_SCHEMES)
# FIXME don't rely on sys.version here, its format is an implementatin detail
# FIXME don't rely on sys.version here, its format is an implementation detail
# of CPython, use sys.version_info or sys.hexversion
_PY_VERSION = sys.version.split()[0]
_PY_VERSION_SHORT = sys.version[:3]
_PY_VERSION_SHORT_NO_DOT = _PY_VERSION[0] + _PY_VERSION[2]
_PREFIX = os.path.normpath(sys.prefix)
_BASE_PREFIX = os.path.normpath(sys.base_prefix)
_EXEC_PREFIX = os.path.normpath(sys.exec_prefix)
_BASE_EXEC_PREFIX = os.path.normpath(sys.base_exec_prefix)
_CONFIG_VARS = None
_USER_BASE = None
@ -94,14 +97,22 @@ if os.name == "nt" and "\\pc\\v" in _PROJECT_BASE[-10:].lower():
if os.name == "nt" and "\\pcbuild\\amd64" in _PROJECT_BASE[-14:].lower():
_PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
def is_python_build():
def _is_python_source_dir(d):
for fn in ("Setup.dist", "Setup.local"):
if os.path.isfile(os.path.join(_PROJECT_BASE, "Modules", fn)):
if os.path.isfile(os.path.join(d, "Modules", fn)):
return True
return False
_PYTHON_BUILD = is_python_build()
_sys_home = getattr(sys, '_home', None)
if _sys_home and os.name == 'nt' and _sys_home.lower().endswith('pcbuild'):
_sys_home = os.path.dirname(_sys_home)
def is_python_build(check_home=False):
if check_home and _sys_home:
return _is_python_source_dir(_sys_home)
return _is_python_source_dir(_PROJECT_BASE)
_PYTHON_BUILD = is_python_build(True)
if _PYTHON_BUILD:
for scheme in ('posix_prefix', 'posix_home'):
@ -312,7 +323,7 @@ def _parse_makefile(filename, vars=None):
def get_makefile_filename():
"""Return the path of the Makefile."""
if _PYTHON_BUILD:
return os.path.join(_PROJECT_BASE, "Makefile")
return os.path.join(_sys_home or _PROJECT_BASE, "Makefile")
if hasattr(sys, 'abiflags'):
config_dir_name = 'config-%s%s' % (_PY_VERSION_SHORT, sys.abiflags)
else:
@ -412,9 +423,9 @@ def get_config_h_filename():
"""Return the path of pyconfig.h."""
if _PYTHON_BUILD:
if os.name == "nt":
inc_dir = os.path.join(_PROJECT_BASE, "PC")
inc_dir = os.path.join(_sys_home or _PROJECT_BASE, "PC")
else:
inc_dir = _PROJECT_BASE
inc_dir = _sys_home or _PROJECT_BASE
else:
inc_dir = get_path('platinclude')
return os.path.join(inc_dir, 'pyconfig.h')
@ -472,7 +483,9 @@ def get_config_vars(*args):
_CONFIG_VARS['py_version'] = _PY_VERSION
_CONFIG_VARS['py_version_short'] = _PY_VERSION_SHORT
_CONFIG_VARS['py_version_nodot'] = _PY_VERSION[0] + _PY_VERSION[2]
_CONFIG_VARS['installed_base'] = _BASE_PREFIX
_CONFIG_VARS['base'] = _PREFIX
_CONFIG_VARS['installed_platbase'] = _BASE_EXEC_PREFIX
_CONFIG_VARS['platbase'] = _EXEC_PREFIX
_CONFIG_VARS['projectbase'] = _PROJECT_BASE
try: