08.04.21 23:31, Ethan Furman пише: > In issue14243 [1] there are two issues being tracked: > > - the difference in opening shared files between posix and Windows > - the behavior of closing the underlying file in the middle of > NamedTemporaryFile's context management > > I'd like to address and get feedback on the context management issue. > > ```python > from tempfile import NamedTemporaryFile > > with NamedTemporaryFile() as fp: > fp.write(b'some data') > fp = open(fp.name()) > data = fp.read() > > assert data == 'some_data' > ```
These issues are usually solved by using TemporaryDirectory: with TemporaryDirectory() as td: filename = os.path.join(td, 'tempfile') with open(filename, 'wb') as fp: fp.write(b'some data') with open(filename, 'rb') as fp: data = fp.read() What if make NamedTemporaryFile a wrapper around TemporaryDirectory and always create a new temporary directory for file? @contextmanager def NamedTemporaryFile(): with TemporaryDirectory() as td: filename = os.path.join(td, 'tempfile') with open(filename, 'wb') as fp: yield fp _______________________________________________ Python-Dev mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/[email protected]/message/2H2PIMPZ3VE2JDBUA7WVX25ULIC3C4SM/ Code of Conduct: http://python.org/psf/codeofconduct/