__init__.py 文件源码

def _mkstemp(*args, **kw):
    old_open = os.open
    try:
        # temporarily bypass sandboxing
        os.open = os_open
        return tempfile.mkstemp(*args, **kw)
    finally:
        # and then put it back
        os.open = old_open


# Silence the PEP440Warning by default, so that end users don't get hit by it
# randomly just because they use pkg_resources. We want to append the rule
# because we want earlier uses of filterwarnings to take precedence over this
# one.