- c_source_file = source_file + ".c"
- if not os.path.exists(c_source_file) or \
- Utils.file_newer_than(pyx_source_file,
- Utils.modification_time(c_source_file)):
- print("Compiling module %s ..." % module)
- result = compile(pyx_source_file)
- c_source_file = result.c_file
- if c_source_file:
- extensions.append(
- Extension(module, sources = [c_source_file])
- )
- else:
- print("Compilation failed")
- if extensions:
- setup_args['ext_modules'] = extensions
- setup_args['cmdclass'] = {"build_ext" : build_ext}
- except Exception:
- print("ERROR: %s" % sys.exc_info()[1])
- print("Extension module compilation failed, using plain Python implementation")
+ extensions.append(
+ Extension(module, sources = [pyx_source_file])
+ )
+
+ class build_ext(build_ext_orig):
+ def build_extensions(self):
+ # add path where 2to3 installed the transformed sources
+ # and make sure Python (re-)imports them from there
+ already_imported = [ module for module in sys.modules
+ if module == 'Cython' or module.startswith('Cython.') ]
+ for module in already_imported:
+ del sys.modules[module]
+ sys.path.insert(0, os.path.join(source_root, self.build_lib))
+
+ if profile:
+ from Cython.Compiler.Options import directive_defaults
+ directive_defaults['profile'] = True
+ print("Enabled profiling for the Cython binary modules")
+ build_ext_orig.build_extensions(self)
+
+ setup_args['ext_modules'] = extensions
+ add_command_class("build_ext", build_ext)
+
+ else: # Python 2.x
+ from distutils.command.build_ext import build_ext as build_ext_orig
+ try:
+ class build_ext(build_ext_orig):
+ def build_extension(self, ext, *args, **kargs):
+ try:
+ build_ext_orig.build_extension(self, ext, *args, **kargs)
+ except StandardError:
+ print("Compilation of '%s' failed" % ext.sources[0])
+ from Cython.Compiler.Main import compile
+ from Cython import Utils
+ if profile:
+ from Cython.Compiler.Options import directive_defaults
+ directive_defaults['profile'] = True
+ print("Enabled profiling for the Cython binary modules")
+ source_root = os.path.dirname(__file__)
+ for module in compiled_modules:
+ source_file = os.path.join(source_root, *module.split('.'))
+ if os.path.exists(source_file + ".py"):
+ pyx_source_file = source_file + ".py"
+ else:
+ pyx_source_file = source_file + ".pyx"
+ c_source_file = source_file + ".c"
+ if not os.path.exists(c_source_file) or \
+ Utils.file_newer_than(pyx_source_file,
+ Utils.modification_time(c_source_file)):
+ print("Compiling module %s ..." % module)
+ result = compile(pyx_source_file)
+ c_source_file = result.c_file
+ if c_source_file:
+ # Py2 distutils can't handle unicode file paths
+ if isinstance(c_source_file, unicode):
+ filename_encoding = sys.getfilesystemencoding()
+ if filename_encoding is None:
+ filename_encoding = sys.getdefaultencoding()
+ c_source_file = c_source_file.encode(filename_encoding)
+ extensions.append(
+ Extension(module, sources = [c_source_file])
+ )
+ else:
+ print("Compilation failed")
+ if extensions:
+ setup_args['ext_modules'] = extensions
+ add_command_class("build_ext", build_ext)
+ except Exception:
+ print('''
+ERROR: %s
+
+Extension module compilation failed, looks like Cython cannot run
+properly on this system. To work around this, pass the option
+"--no-cython-compile". This will install a pure Python version of
+Cython without compiling its own sources.
+''' % sys.exc_info()[1])
+ raise
+
+cython_profile = '--cython-profile' in sys.argv
+if cython_profile:
+ sys.argv.remove('--cython-profile')
+
+try:
+ sys.argv.remove("--no-cython-compile")
+except ValueError:
+ compile_cython_modules(cython_profile)