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| from __future__ import absolute_import | |
| import os | |
| import sys | |
| import errno | |
| try: | |
| from lxml import etree | |
| have_lxml = True | |
| except ImportError: | |
| have_lxml = False | |
| try: | |
| from xml.etree import cElementTree as etree | |
| except ImportError: | |
| try: | |
| from xml.etree import ElementTree as etree | |
| except ImportError: | |
| etree = None | |
| from ..Compiler import Errors | |
| class CythonDebugWriter(object): | |
| """ | |
| Class to output debugging information for cygdb | |
| It writes debug information to cython_debug/cython_debug_info_<modulename> | |
| in the build directory. | |
| """ | |
| def __init__(self, output_dir): | |
| if etree is None: | |
| raise Errors.NoElementTreeInstalledException() | |
| self.output_dir = os.path.join(output_dir or os.curdir, 'cython_debug') | |
| self.tb = etree.TreeBuilder() | |
| # set by Cython.Compiler.ParseTreeTransforms.DebugTransform | |
| self.module_name = None | |
| self.start('cython_debug', attrs=dict(version='1.0')) | |
| def start(self, name, attrs=None): | |
| self.tb.start(name, attrs or {}) | |
| def end(self, name): | |
| self.tb.end(name) | |
| def add_entry(self, name, **attrs): | |
| self.tb.start(name, attrs) | |
| self.tb.end(name) | |
| def serialize(self): | |
| self.tb.end('Module') | |
| self.tb.end('cython_debug') | |
| xml_root_element = self.tb.close() | |
| try: | |
| os.makedirs(self.output_dir) | |
| except OSError as e: | |
| if e.errno != errno.EEXIST: | |
| raise | |
| et = etree.ElementTree(xml_root_element) | |
| kw = {} | |
| if have_lxml: | |
| kw['pretty_print'] = True | |
| fn = "cython_debug_info_" + self.module_name | |
| et.write(os.path.join(self.output_dir, fn), encoding="UTF-8", **kw) | |
| interpreter_path = os.path.join(self.output_dir, 'interpreter') | |
| with open(interpreter_path, 'w') as f: | |
| f.write(sys.executable) | |