621 lines
24 KiB
Python
621 lines
24 KiB
Python
|
"""
|
||
|
Import hooks; when installed with the install() function, these hooks
|
||
|
allow importing .pyx files as if they were Python modules.
|
||
|
|
||
|
If you want the hook installed every time you run Python
|
||
|
you can add it to your Python version by adding these lines to
|
||
|
sitecustomize.py (which you can create from scratch in site-packages
|
||
|
if it doesn't exist there or somewhere else on your python path)::
|
||
|
|
||
|
import pyximport
|
||
|
pyximport.install()
|
||
|
|
||
|
For instance on the Mac with a non-system Python 2.3, you could create
|
||
|
sitecustomize.py with only those two lines at
|
||
|
/usr/local/lib/python2.3/site-packages/sitecustomize.py .
|
||
|
|
||
|
A custom distutils.core.Extension instance and setup() args
|
||
|
(Distribution) for for the build can be defined by a <modulename>.pyxbld
|
||
|
file like:
|
||
|
|
||
|
# examplemod.pyxbld
|
||
|
def make_ext(modname, pyxfilename):
|
||
|
from distutils.extension import Extension
|
||
|
return Extension(name = modname,
|
||
|
sources=[pyxfilename, 'hello.c'],
|
||
|
include_dirs=['/myinclude'] )
|
||
|
def make_setup_args():
|
||
|
return dict(script_args=["--compiler=mingw32"])
|
||
|
|
||
|
Extra dependencies can be defined by a <modulename>.pyxdep .
|
||
|
See README.
|
||
|
|
||
|
Since Cython 0.11, the :mod:`pyximport` module also has experimental
|
||
|
compilation support for normal Python modules. This allows you to
|
||
|
automatically run Cython on every .pyx and .py module that Python
|
||
|
imports, including parts of the standard library and installed
|
||
|
packages. Cython will still fail to compile a lot of Python modules,
|
||
|
in which case the import mechanism will fall back to loading the
|
||
|
Python source modules instead. The .py import mechanism is installed
|
||
|
like this::
|
||
|
|
||
|
pyximport.install(pyimport = True)
|
||
|
|
||
|
Running this module as a top-level script will run a test and then print
|
||
|
the documentation.
|
||
|
|
||
|
This code is based on the Py2.3+ import protocol as described in PEP 302.
|
||
|
"""
|
||
|
|
||
|
import glob
|
||
|
import imp
|
||
|
import os
|
||
|
import sys
|
||
|
from zipimport import zipimporter, ZipImportError
|
||
|
|
||
|
mod_name = "pyximport"
|
||
|
|
||
|
PYX_EXT = ".pyx"
|
||
|
PYXDEP_EXT = ".pyxdep"
|
||
|
PYXBLD_EXT = ".pyxbld"
|
||
|
|
||
|
DEBUG_IMPORT = False
|
||
|
|
||
|
|
||
|
def _print(message, args):
|
||
|
if args:
|
||
|
message = message % args
|
||
|
print(message)
|
||
|
|
||
|
|
||
|
def _debug(message, *args):
|
||
|
if DEBUG_IMPORT:
|
||
|
_print(message, args)
|
||
|
|
||
|
|
||
|
def _info(message, *args):
|
||
|
_print(message, args)
|
||
|
|
||
|
|
||
|
# Performance problem: for every PYX file that is imported, we will
|
||
|
# invoke the whole distutils infrastructure even if the module is
|
||
|
# already built. It might be more efficient to only do it when the
|
||
|
# mod time of the .pyx is newer than the mod time of the .so but
|
||
|
# the question is how to get distutils to tell me the name of the .so
|
||
|
# before it builds it. Maybe it is easy...but maybe the performance
|
||
|
# issue isn't real.
|
||
|
def _load_pyrex(name, filename):
|
||
|
"Load a pyrex file given a name and filename."
|
||
|
|
||
|
|
||
|
def get_distutils_extension(modname, pyxfilename, language_level=None):
|
||
|
# try:
|
||
|
# import hashlib
|
||
|
# except ImportError:
|
||
|
# import md5 as hashlib
|
||
|
# extra = "_" + hashlib.md5(open(pyxfilename).read()).hexdigest()
|
||
|
# modname = modname + extra
|
||
|
extension_mod,setup_args = handle_special_build(modname, pyxfilename)
|
||
|
if not extension_mod:
|
||
|
if not isinstance(pyxfilename, str):
|
||
|
# distutils is stupid in Py2 and requires exactly 'str'
|
||
|
# => encode accidentally coerced unicode strings back to str
|
||
|
pyxfilename = pyxfilename.encode(sys.getfilesystemencoding())
|
||
|
from distutils.extension import Extension
|
||
|
extension_mod = Extension(name = modname, sources=[pyxfilename])
|
||
|
if language_level is not None:
|
||
|
extension_mod.cython_directives = {'language_level': language_level}
|
||
|
return extension_mod,setup_args
|
||
|
|
||
|
|
||
|
def handle_special_build(modname, pyxfilename):
|
||
|
special_build = os.path.splitext(pyxfilename)[0] + PYXBLD_EXT
|
||
|
ext = None
|
||
|
setup_args={}
|
||
|
if os.path.exists(special_build):
|
||
|
# globls = {}
|
||
|
# locs = {}
|
||
|
# execfile(special_build, globls, locs)
|
||
|
# ext = locs["make_ext"](modname, pyxfilename)
|
||
|
with open(special_build) as fid:
|
||
|
mod = imp.load_source("XXXX", special_build, fid)
|
||
|
make_ext = getattr(mod,'make_ext',None)
|
||
|
if make_ext:
|
||
|
ext = make_ext(modname, pyxfilename)
|
||
|
assert ext and ext.sources, "make_ext in %s did not return Extension" % special_build
|
||
|
make_setup_args = getattr(mod, 'make_setup_args',None)
|
||
|
if make_setup_args:
|
||
|
setup_args = make_setup_args()
|
||
|
assert isinstance(setup_args,dict), ("make_setup_args in %s did not return a dict"
|
||
|
% special_build)
|
||
|
assert ext or setup_args, ("neither make_ext nor make_setup_args %s"
|
||
|
% special_build)
|
||
|
ext.sources = [os.path.join(os.path.dirname(special_build), source)
|
||
|
for source in ext.sources]
|
||
|
return ext, setup_args
|
||
|
|
||
|
|
||
|
def handle_dependencies(pyxfilename):
|
||
|
testing = '_test_files' in globals()
|
||
|
dependfile = os.path.splitext(pyxfilename)[0] + PYXDEP_EXT
|
||
|
|
||
|
# by default let distutils decide whether to rebuild on its own
|
||
|
# (it has a better idea of what the output file will be)
|
||
|
|
||
|
# but we know more about dependencies so force a rebuild if
|
||
|
# some of the dependencies are newer than the pyxfile.
|
||
|
if os.path.exists(dependfile):
|
||
|
with open(dependfile) as fid:
|
||
|
depends = fid.readlines()
|
||
|
depends = [depend.strip() for depend in depends]
|
||
|
|
||
|
# gather dependencies in the "files" variable
|
||
|
# the dependency file is itself a dependency
|
||
|
files = [dependfile]
|
||
|
for depend in depends:
|
||
|
fullpath = os.path.join(os.path.dirname(dependfile),
|
||
|
depend)
|
||
|
files.extend(glob.glob(fullpath))
|
||
|
|
||
|
# only for unit testing to see we did the right thing
|
||
|
if testing:
|
||
|
_test_files[:] = [] #$pycheck_no
|
||
|
|
||
|
# if any file that the pyxfile depends upon is newer than
|
||
|
# the pyx file, 'touch' the pyx file so that distutils will
|
||
|
# be tricked into rebuilding it.
|
||
|
for file in files:
|
||
|
from distutils.dep_util import newer
|
||
|
if newer(file, pyxfilename):
|
||
|
_debug("Rebuilding %s because of %s", pyxfilename, file)
|
||
|
filetime = os.path.getmtime(file)
|
||
|
os.utime(pyxfilename, (filetime, filetime))
|
||
|
if testing:
|
||
|
_test_files.append(file)
|
||
|
|
||
|
|
||
|
def build_module(name, pyxfilename, pyxbuild_dir=None, inplace=False, language_level=None):
|
||
|
assert os.path.exists(pyxfilename), "Path does not exist: %s" % pyxfilename
|
||
|
handle_dependencies(pyxfilename)
|
||
|
|
||
|
extension_mod, setup_args = get_distutils_extension(name, pyxfilename, language_level)
|
||
|
build_in_temp = pyxargs.build_in_temp
|
||
|
sargs = pyxargs.setup_args.copy()
|
||
|
sargs.update(setup_args)
|
||
|
build_in_temp = sargs.pop('build_in_temp',build_in_temp)
|
||
|
|
||
|
from . import pyxbuild
|
||
|
olddir = os.getcwd()
|
||
|
common = ''
|
||
|
if pyxbuild_dir and sys.platform == 'win32':
|
||
|
# Windows concatenates the pyxbuild_dir to the pyxfilename when
|
||
|
# compiling, and then complains that the filename is too long
|
||
|
common = os.path.commonprefix([pyxbuild_dir, pyxfilename])
|
||
|
if len(common) > 30:
|
||
|
pyxfilename = os.path.relpath(pyxfilename, common)
|
||
|
pyxbuild_dir = os.path.relpath(pyxbuild_dir, common)
|
||
|
os.chdir(common)
|
||
|
try:
|
||
|
so_path = pyxbuild.pyx_to_dll(pyxfilename, extension_mod,
|
||
|
build_in_temp=build_in_temp,
|
||
|
pyxbuild_dir=pyxbuild_dir,
|
||
|
setup_args=sargs,
|
||
|
inplace=inplace,
|
||
|
reload_support=pyxargs.reload_support)
|
||
|
finally:
|
||
|
os.chdir(olddir)
|
||
|
so_path = os.path.join(common, so_path)
|
||
|
assert os.path.exists(so_path), "Cannot find: %s" % so_path
|
||
|
|
||
|
junkpath = os.path.join(os.path.dirname(so_path), name+"_*") #very dangerous with --inplace ? yes, indeed, trying to eat my files ;)
|
||
|
junkstuff = glob.glob(junkpath)
|
||
|
for path in junkstuff:
|
||
|
if path != so_path:
|
||
|
try:
|
||
|
os.remove(path)
|
||
|
except IOError:
|
||
|
_info("Couldn't remove %s", path)
|
||
|
|
||
|
return so_path
|
||
|
|
||
|
|
||
|
def load_module(name, pyxfilename, pyxbuild_dir=None, is_package=False,
|
||
|
build_inplace=False, language_level=None, so_path=None):
|
||
|
try:
|
||
|
if so_path is None:
|
||
|
if is_package:
|
||
|
module_name = name + '.__init__'
|
||
|
else:
|
||
|
module_name = name
|
||
|
so_path = build_module(module_name, pyxfilename, pyxbuild_dir,
|
||
|
inplace=build_inplace, language_level=language_level)
|
||
|
mod = imp.load_dynamic(name, so_path)
|
||
|
if is_package and not hasattr(mod, '__path__'):
|
||
|
mod.__path__ = [os.path.dirname(so_path)]
|
||
|
assert mod.__file__ == so_path, (mod.__file__, so_path)
|
||
|
except Exception as failure_exc:
|
||
|
_debug("Failed to load extension module: %r" % failure_exc)
|
||
|
if pyxargs.load_py_module_on_import_failure and pyxfilename.endswith('.py'):
|
||
|
# try to fall back to normal import
|
||
|
mod = imp.load_source(name, pyxfilename)
|
||
|
assert mod.__file__ in (pyxfilename, pyxfilename+'c', pyxfilename+'o'), (mod.__file__, pyxfilename)
|
||
|
else:
|
||
|
tb = sys.exc_info()[2]
|
||
|
import traceback
|
||
|
exc = ImportError("Building module %s failed: %s" % (
|
||
|
name, traceback.format_exception_only(*sys.exc_info()[:2])))
|
||
|
if sys.version_info[0] >= 3:
|
||
|
raise exc.with_traceback(tb)
|
||
|
else:
|
||
|
exec("raise exc, None, tb", {'exc': exc, 'tb': tb})
|
||
|
return mod
|
||
|
|
||
|
|
||
|
# import hooks
|
||
|
|
||
|
class PyxImporter(object):
|
||
|
"""A meta-path importer for .pyx files.
|
||
|
"""
|
||
|
def __init__(self, extension=PYX_EXT, pyxbuild_dir=None, inplace=False,
|
||
|
language_level=None):
|
||
|
self.extension = extension
|
||
|
self.pyxbuild_dir = pyxbuild_dir
|
||
|
self.inplace = inplace
|
||
|
self.language_level = language_level
|
||
|
|
||
|
def find_module(self, fullname, package_path=None):
|
||
|
if fullname in sys.modules and not pyxargs.reload_support:
|
||
|
return None # only here when reload()
|
||
|
|
||
|
# package_path might be a _NamespacePath. Convert that into a list...
|
||
|
if package_path is not None and not isinstance(package_path, list):
|
||
|
package_path = list(package_path)
|
||
|
try:
|
||
|
fp, pathname, (ext,mode,ty) = imp.find_module(fullname,package_path)
|
||
|
if fp: fp.close() # Python should offer a Default-Loader to avoid this double find/open!
|
||
|
if pathname and ty == imp.PKG_DIRECTORY:
|
||
|
pkg_file = os.path.join(pathname, '__init__'+self.extension)
|
||
|
if os.path.isfile(pkg_file):
|
||
|
return PyxLoader(fullname, pathname,
|
||
|
init_path=pkg_file,
|
||
|
pyxbuild_dir=self.pyxbuild_dir,
|
||
|
inplace=self.inplace,
|
||
|
language_level=self.language_level)
|
||
|
if pathname and pathname.endswith(self.extension):
|
||
|
return PyxLoader(fullname, pathname,
|
||
|
pyxbuild_dir=self.pyxbuild_dir,
|
||
|
inplace=self.inplace,
|
||
|
language_level=self.language_level)
|
||
|
if ty != imp.C_EXTENSION: # only when an extension, check if we have a .pyx next!
|
||
|
return None
|
||
|
|
||
|
# find .pyx fast, when .so/.pyd exist --inplace
|
||
|
pyxpath = os.path.splitext(pathname)[0]+self.extension
|
||
|
if os.path.isfile(pyxpath):
|
||
|
return PyxLoader(fullname, pyxpath,
|
||
|
pyxbuild_dir=self.pyxbuild_dir,
|
||
|
inplace=self.inplace,
|
||
|
language_level=self.language_level)
|
||
|
|
||
|
# .so/.pyd's on PATH should not be remote from .pyx's
|
||
|
# think no need to implement PyxArgs.importer_search_remote here?
|
||
|
|
||
|
except ImportError:
|
||
|
pass
|
||
|
|
||
|
# searching sys.path ...
|
||
|
|
||
|
#if DEBUG_IMPORT: print "SEARCHING", fullname, package_path
|
||
|
|
||
|
mod_parts = fullname.split('.')
|
||
|
module_name = mod_parts[-1]
|
||
|
pyx_module_name = module_name + self.extension
|
||
|
|
||
|
# this may work, but it returns the file content, not its path
|
||
|
#import pkgutil
|
||
|
#pyx_source = pkgutil.get_data(package, pyx_module_name)
|
||
|
|
||
|
paths = package_path or sys.path
|
||
|
for path in paths:
|
||
|
pyx_data = None
|
||
|
if not path:
|
||
|
path = os.getcwd()
|
||
|
elif os.path.isfile(path):
|
||
|
try:
|
||
|
zi = zipimporter(path)
|
||
|
pyx_data = zi.get_data(pyx_module_name)
|
||
|
except (ZipImportError, IOError, OSError):
|
||
|
continue # Module not found.
|
||
|
# unzip the imported file into the build dir
|
||
|
# FIXME: can interfere with later imports if build dir is in sys.path and comes before zip file
|
||
|
path = self.pyxbuild_dir
|
||
|
elif not os.path.isabs(path):
|
||
|
path = os.path.abspath(path)
|
||
|
|
||
|
pyx_module_path = os.path.join(path, pyx_module_name)
|
||
|
if pyx_data is not None:
|
||
|
if not os.path.exists(path):
|
||
|
try:
|
||
|
os.makedirs(path)
|
||
|
except OSError:
|
||
|
# concurrency issue?
|
||
|
if not os.path.exists(path):
|
||
|
raise
|
||
|
with open(pyx_module_path, "wb") as f:
|
||
|
f.write(pyx_data)
|
||
|
elif not os.path.isfile(pyx_module_path):
|
||
|
continue # Module not found.
|
||
|
|
||
|
return PyxLoader(fullname, pyx_module_path,
|
||
|
pyxbuild_dir=self.pyxbuild_dir,
|
||
|
inplace=self.inplace,
|
||
|
language_level=self.language_level)
|
||
|
|
||
|
# not found, normal package, not a .pyx file, none of our business
|
||
|
_debug("%s not found" % fullname)
|
||
|
return None
|
||
|
|
||
|
|
||
|
class PyImporter(PyxImporter):
|
||
|
"""A meta-path importer for normal .py files.
|
||
|
"""
|
||
|
def __init__(self, pyxbuild_dir=None, inplace=False, language_level=None):
|
||
|
if language_level is None:
|
||
|
language_level = sys.version_info[0]
|
||
|
self.super = super(PyImporter, self)
|
||
|
self.super.__init__(extension='.py', pyxbuild_dir=pyxbuild_dir, inplace=inplace,
|
||
|
language_level=language_level)
|
||
|
self.uncompilable_modules = {}
|
||
|
self.blocked_modules = ['Cython', 'pyxbuild', 'pyximport.pyxbuild',
|
||
|
'distutils']
|
||
|
self.blocked_packages = ['Cython.', 'distutils.']
|
||
|
|
||
|
def find_module(self, fullname, package_path=None):
|
||
|
if fullname in sys.modules:
|
||
|
return None
|
||
|
if any([fullname.startswith(pkg) for pkg in self.blocked_packages]):
|
||
|
return None
|
||
|
if fullname in self.blocked_modules:
|
||
|
# prevent infinite recursion
|
||
|
return None
|
||
|
if _lib_loader.knows(fullname):
|
||
|
return _lib_loader
|
||
|
_debug("trying import of module '%s'", fullname)
|
||
|
if fullname in self.uncompilable_modules:
|
||
|
path, last_modified = self.uncompilable_modules[fullname]
|
||
|
try:
|
||
|
new_last_modified = os.stat(path).st_mtime
|
||
|
if new_last_modified > last_modified:
|
||
|
# import would fail again
|
||
|
return None
|
||
|
except OSError:
|
||
|
# module is no longer where we found it, retry the import
|
||
|
pass
|
||
|
|
||
|
self.blocked_modules.append(fullname)
|
||
|
try:
|
||
|
importer = self.super.find_module(fullname, package_path)
|
||
|
if importer is not None:
|
||
|
if importer.init_path:
|
||
|
path = importer.init_path
|
||
|
real_name = fullname + '.__init__'
|
||
|
else:
|
||
|
path = importer.path
|
||
|
real_name = fullname
|
||
|
_debug("importer found path %s for module %s", path, real_name)
|
||
|
try:
|
||
|
so_path = build_module(
|
||
|
real_name, path,
|
||
|
pyxbuild_dir=self.pyxbuild_dir,
|
||
|
language_level=self.language_level,
|
||
|
inplace=self.inplace)
|
||
|
_lib_loader.add_lib(fullname, path, so_path,
|
||
|
is_package=bool(importer.init_path))
|
||
|
return _lib_loader
|
||
|
except Exception:
|
||
|
if DEBUG_IMPORT:
|
||
|
import traceback
|
||
|
traceback.print_exc()
|
||
|
# build failed, not a compilable Python module
|
||
|
try:
|
||
|
last_modified = os.stat(path).st_mtime
|
||
|
except OSError:
|
||
|
last_modified = 0
|
||
|
self.uncompilable_modules[fullname] = (path, last_modified)
|
||
|
importer = None
|
||
|
finally:
|
||
|
self.blocked_modules.pop()
|
||
|
return importer
|
||
|
|
||
|
|
||
|
class LibLoader(object):
|
||
|
def __init__(self):
|
||
|
self._libs = {}
|
||
|
|
||
|
def load_module(self, fullname):
|
||
|
try:
|
||
|
source_path, so_path, is_package = self._libs[fullname]
|
||
|
except KeyError:
|
||
|
raise ValueError("invalid module %s" % fullname)
|
||
|
_debug("Loading shared library module '%s' from %s", fullname, so_path)
|
||
|
return load_module(fullname, source_path, so_path=so_path, is_package=is_package)
|
||
|
|
||
|
def add_lib(self, fullname, path, so_path, is_package):
|
||
|
self._libs[fullname] = (path, so_path, is_package)
|
||
|
|
||
|
def knows(self, fullname):
|
||
|
return fullname in self._libs
|
||
|
|
||
|
_lib_loader = LibLoader()
|
||
|
|
||
|
|
||
|
class PyxLoader(object):
|
||
|
def __init__(self, fullname, path, init_path=None, pyxbuild_dir=None,
|
||
|
inplace=False, language_level=None):
|
||
|
_debug("PyxLoader created for loading %s from %s (init path: %s)",
|
||
|
fullname, path, init_path)
|
||
|
self.fullname = fullname
|
||
|
self.path, self.init_path = path, init_path
|
||
|
self.pyxbuild_dir = pyxbuild_dir
|
||
|
self.inplace = inplace
|
||
|
self.language_level = language_level
|
||
|
|
||
|
def load_module(self, fullname):
|
||
|
assert self.fullname == fullname, (
|
||
|
"invalid module, expected %s, got %s" % (
|
||
|
self.fullname, fullname))
|
||
|
if self.init_path:
|
||
|
# package
|
||
|
#print "PACKAGE", fullname
|
||
|
module = load_module(fullname, self.init_path,
|
||
|
self.pyxbuild_dir, is_package=True,
|
||
|
build_inplace=self.inplace,
|
||
|
language_level=self.language_level)
|
||
|
module.__path__ = [self.path]
|
||
|
else:
|
||
|
#print "MODULE", fullname
|
||
|
module = load_module(fullname, self.path,
|
||
|
self.pyxbuild_dir,
|
||
|
build_inplace=self.inplace,
|
||
|
language_level=self.language_level)
|
||
|
return module
|
||
|
|
||
|
|
||
|
#install args
|
||
|
class PyxArgs(object):
|
||
|
build_dir=True
|
||
|
build_in_temp=True
|
||
|
setup_args={} #None
|
||
|
|
||
|
##pyxargs=None
|
||
|
|
||
|
|
||
|
def _have_importers():
|
||
|
has_py_importer = False
|
||
|
has_pyx_importer = False
|
||
|
for importer in sys.meta_path:
|
||
|
if isinstance(importer, PyxImporter):
|
||
|
if isinstance(importer, PyImporter):
|
||
|
has_py_importer = True
|
||
|
else:
|
||
|
has_pyx_importer = True
|
||
|
|
||
|
return has_py_importer, has_pyx_importer
|
||
|
|
||
|
|
||
|
def install(pyximport=True, pyimport=False, build_dir=None, build_in_temp=True,
|
||
|
setup_args=None, reload_support=False,
|
||
|
load_py_module_on_import_failure=False, inplace=False,
|
||
|
language_level=None):
|
||
|
""" Main entry point for pyxinstall.
|
||
|
|
||
|
Call this to install the ``.pyx`` import hook in
|
||
|
your meta-path for a single Python process. If you want it to be
|
||
|
installed whenever you use Python, add it to your ``sitecustomize``
|
||
|
(as described above).
|
||
|
|
||
|
:param pyximport: If set to False, does not try to import ``.pyx`` files.
|
||
|
|
||
|
:param pyimport: You can pass ``pyimport=True`` to also
|
||
|
install the ``.py`` import hook
|
||
|
in your meta-path. Note, however, that it is rather experimental,
|
||
|
will not work at all for some ``.py`` files and packages, and will
|
||
|
heavily slow down your imports due to search and compilation.
|
||
|
Use at your own risk.
|
||
|
|
||
|
:param build_dir: By default, compiled modules will end up in a ``.pyxbld``
|
||
|
directory in the user's home directory. Passing a different path
|
||
|
as ``build_dir`` will override this.
|
||
|
|
||
|
:param build_in_temp: If ``False``, will produce the C files locally. Working
|
||
|
with complex dependencies and debugging becomes more easy. This
|
||
|
can principally interfere with existing files of the same name.
|
||
|
|
||
|
:param setup_args: Dict of arguments for Distribution.
|
||
|
See ``distutils.core.setup()``.
|
||
|
|
||
|
:param reload_support: Enables support for dynamic
|
||
|
``reload(my_module)``, e.g. after a change in the Cython code.
|
||
|
Additional files ``<so_path>.reloadNN`` may arise on that account, when
|
||
|
the previously loaded module file cannot be overwritten.
|
||
|
|
||
|
:param load_py_module_on_import_failure: If the compilation of a ``.py``
|
||
|
file succeeds, but the subsequent import fails for some reason,
|
||
|
retry the import with the normal ``.py`` module instead of the
|
||
|
compiled module. Note that this may lead to unpredictable results
|
||
|
for modules that change the system state during their import, as
|
||
|
the second import will rerun these modifications in whatever state
|
||
|
the system was left after the import of the compiled module
|
||
|
failed.
|
||
|
|
||
|
:param inplace: Install the compiled module
|
||
|
(``.so`` for Linux and Mac / ``.pyd`` for Windows)
|
||
|
next to the source file.
|
||
|
|
||
|
:param language_level: The source language level to use: 2 or 3.
|
||
|
The default is to use the language level of the current Python
|
||
|
runtime for .py files and Py2 for ``.pyx`` files.
|
||
|
"""
|
||
|
if setup_args is None:
|
||
|
setup_args = {}
|
||
|
if not build_dir:
|
||
|
build_dir = os.path.join(os.path.expanduser('~'), '.pyxbld')
|
||
|
|
||
|
global pyxargs
|
||
|
pyxargs = PyxArgs() #$pycheck_no
|
||
|
pyxargs.build_dir = build_dir
|
||
|
pyxargs.build_in_temp = build_in_temp
|
||
|
pyxargs.setup_args = (setup_args or {}).copy()
|
||
|
pyxargs.reload_support = reload_support
|
||
|
pyxargs.load_py_module_on_import_failure = load_py_module_on_import_failure
|
||
|
|
||
|
has_py_importer, has_pyx_importer = _have_importers()
|
||
|
py_importer, pyx_importer = None, None
|
||
|
|
||
|
if pyimport and not has_py_importer:
|
||
|
py_importer = PyImporter(pyxbuild_dir=build_dir, inplace=inplace,
|
||
|
language_level=language_level)
|
||
|
# make sure we import Cython before we install the import hook
|
||
|
import Cython.Compiler.Main, Cython.Compiler.Pipeline, Cython.Compiler.Optimize
|
||
|
sys.meta_path.insert(0, py_importer)
|
||
|
|
||
|
if pyximport and not has_pyx_importer:
|
||
|
pyx_importer = PyxImporter(pyxbuild_dir=build_dir, inplace=inplace,
|
||
|
language_level=language_level)
|
||
|
sys.meta_path.append(pyx_importer)
|
||
|
|
||
|
return py_importer, pyx_importer
|
||
|
|
||
|
|
||
|
def uninstall(py_importer, pyx_importer):
|
||
|
"""
|
||
|
Uninstall an import hook.
|
||
|
"""
|
||
|
try:
|
||
|
sys.meta_path.remove(py_importer)
|
||
|
except ValueError:
|
||
|
pass
|
||
|
|
||
|
try:
|
||
|
sys.meta_path.remove(pyx_importer)
|
||
|
except ValueError:
|
||
|
pass
|
||
|
|
||
|
|
||
|
# MAIN
|
||
|
|
||
|
def show_docs():
|
||
|
import __main__
|
||
|
__main__.__name__ = mod_name
|
||
|
for name in dir(__main__):
|
||
|
item = getattr(__main__, name)
|
||
|
try:
|
||
|
setattr(item, "__module__", mod_name)
|
||
|
except (AttributeError, TypeError):
|
||
|
pass
|
||
|
help(__main__)
|
||
|
|
||
|
|
||
|
if __name__ == '__main__':
|
||
|
show_docs()
|