diff options
Diffstat (limited to 'vk/tracking/db/io.py')
| -rw-r--r-- | vk/tracking/db/io.py | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/vk/tracking/db/io.py b/vk/tracking/db/io.py index 37d9c53..a89865f 100644 --- a/vk/tracking/db/io.py +++ b/vk/tracking/db/io.py @@ -7,6 +7,7 @@ from contextlib import contextmanager import csv import sys + class FileWriterCSV: def __init__(self, fd=sys.stdout): self._fd = fd @@ -14,7 +15,7 @@ class FileWriterCSV: @staticmethod def _convert_row_old_python(row): - if isinstance(row, list) or isinstance(row, tuple): + if isinstance(row, (list, tuple)): return row return list(row) @@ -24,6 +25,7 @@ class FileWriterCSV: self._writer.writerow(row) self._fd.flush() + class FileReaderCSV: def __init__(self, fd=sys.stdin): self._reader = csv.reader(fd) @@ -31,6 +33,7 @@ class FileReaderCSV: def __iter__(self): return iter(self._reader) + @contextmanager def _open_file(path=None, default=None, **kwargs): if path is None: @@ -39,12 +42,15 @@ def _open_file(path=None, default=None, **kwargs): with open(path, **kwargs) as fd: yield fd + _DEFAULT_ENCODING = 'utf-8' + def open_output_text_file(path=None, mode='w'): return _open_file(path, default=sys.stdout, mode=mode, encoding=_DEFAULT_ENCODING) + def open_input_text_file(path=None): return _open_file(path, default=sys.stdin, mode='r', encoding=_DEFAULT_ENCODING) |