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