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# Copyright 2016 Egor Tensin <Egor.Tensin@gmail.com>
# This file is licensed under the terms of the MIT License.
# See LICENSE.txt for details.
import csv
from ..record import Record
class Writer:
def __init__(self, path, mode='w'):
if path is None:
self._fd = None
else:
self._fd = open(path, mode)
self._writer = csv.writer(self._fd, lineterminator='\n')
def __bool__(self):
return self._fd is not None
def __enter__(self):
if not self:
return self
self._fd.__enter__()
return self
def __exit__(self, *args):
if not self:
return
self._fd.__exit__(*args)
def flush(self):
if not self:
return
self._fd.flush()
def write_record(self, user):
if not self:
return
self._write_row(Record.from_user(user).to_row())
self.flush()
def _write_row(self, row):
self._writer.writerow(row)
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